Wonbong Choi

Professor
Discovery Park E132
940-369-7673
Wonbong.Choi@unt.edu
  • Education
    • Ph.D. in Department of Material Science & Engineering (1997), North Carolina State University
    • M.S. in Department of Metallurgical Engineering (1988), Hanyang University, Seoul, Korea
    • B.S. in Department of  Metallurgical Engineering (1986), Hanyang University, Seoul, Korea
  • Biography

    Dr. Wonbong Choi is a tenured, full professor in the Department of Materials Science and Engineering at University of North Texas, Denton. He joined the department in July 2012 after his work in Florida International University (FIU) as a tenured full professor. He joined FIU as an Associate Professor in the Mechanical and Materials Engineering Department in June 2003. Dr. Choi obtained his Ph.D in Materials Science and Engineering from the North Carolina State University (NCSU) in 1997. In period spanning from 1988 to 1993, he worked as a Research Scientist at Agency Defense & Development in fine ceramic-metal composites materials. After his PhD, Dr. Choi worked in the industry research laboratory as a senior researcher and project manager at Samsung (SAIT). He was a leading scientist in the “Carbon Nanotubes for Tera-level Nano electronics Device” project with more than $1.0 M/year support from SAMSUNG and the Government of Korea. He was also involved in the field emission display project at SAMSUNG (SAIT), leading the team investigating the carbon nanotube flat panel display.

    Choi has been awarded the prestigious Materials Research Society (MRS) Medal for 2006 “for important developments in the materials science and applications of carbon nanotubes”. Dr. Choi awarded MRS fellow as the youngest person named as a Fellow in 2009; the title of MRS Fellow honors members of the Materials Research Society who are notable for their distinguished research accomplishments and their outstanding contributions to the advancement of materials research, world-wide. The maximum number of new Fellow appointments each year is limited to 0.2% of the current MRS membership.

    One of the remarkable achievements in his research career was the invention of “Carbon Nanotube Field Emission Display”, which was reported in Science and was covered extensively by news media around the world. His work has led to a recent demonstration by SAMSUNG of over 40-inch field emission flat panel display. In addition, Dr. Choi is credited to developing the large-scale 2D MoS2 film, single molecular DNA-sensor, high efficiency Li-ion battery based on carbon nanotubes, graphene based flexible field emission display, vertical CNT-Field Effect Transistor and CNT based non-volatile memory devices. He has been involved in various cooperative projects such as dye sensitized solar cells, Li-ion battery and lab-on-a-chip to name a few. His innovations, reported as news in the TRN News (January 2002), MIT’s Magazine (June 2003), Analytical Chemistry (2006), Nanowerk (2007), Nature Nanotechnology (2008) and TMS (2011), were the first to show some practical ways of making nanomaterials based devices.

    He has successfully conducted numerous granted projects in the domain of nanotechnology funded by AFOSR, DARPA, NSF, SRC, DOE and Samsung. Dr. Choi is the author/co-author of over 80 patents, 1 book (“GRAPHENE” CRC Press 2011), 11 book chapters, over 230 publications, which includes 140 peer-reviewed journal articles and 80 conference proceedings. His research articles have been cited ~11,000 times with H-index of 51 (Google Scholar). He has been invited to share his technological findings and knowhow at many international conferences, MRS, TMS, IEEE, SPIE, APS and so on.  He has served as a chair/committee member for several international meetings including MRS, IEEE-Nano, TMS-Nano symposium and US-Korea meetings. He serves as a reviewer for more than 20 international journals and also serves on the Editorial Board of 5 journals including the International Journal of Nanoparticles and Nanotechnology (Elsevier).

  • Research

    Welcome to Prof. Choi’s Nanomaterials and Device Laboratory’s website. We are conducting basic and applied research at the frontier of nanomaterials and their applications in nanoelectronics, energy storages, and bioelectronics. Our passion lies in the discovery, understand and application of new paradigms to enable next generation devices and systems that can address societal needs.

    2018 update: Our 2D MoS2/Li-metal in Li–S batteries work is published in top-ranked journal of Nature Nanotechnology on February 12, 2018, https://doi.org/10.1038/s41565-018-0061-y

    Research Interests

    • Nanomaterials Synthesis (2D materials, Graphene, Carbon Nanotubes, Nanowires)
    • Ubiquitous (nano) Electronics (FET, flexible electronics)
    • Nano energy storages (Rechargeable Batteries, Flexible Solar Cells, Field emission based energy system)
    • Nano-bio Sensors

    Materials Today “Recent development of 2D materials and their applications”, 116-130, 20, (2017),  https://www.sciencedirect.com/science/article/pii/S1369702116302917

  • Publications
    Papers in Archival Journals

    Citation > 11,000, H index=51 (Google Scholar) from over 240 publications; 1 book and 11 book chapters, ~80 patents

    2017

    1. Phase transformed atomic layer of MoS2 as lithium protective layer for high performance lithium sulfur batteries, Cha, E., Patel, M.D., Park, J., Hwang, J., Prasad, V., Cho, K., and Choi, W., Nature Nanotechnology, February 12, 2018 (https://doi.org/10.1038/s41565-018-0061-y)
    2. In-Situ Fabrication of Graphene-Coated Three-Dimensional Nickel Oxide Anode for High-Capacity Lithium-Ion Batteries, Chiwon Kang, Eunho Cha, Wonbong Choi, RSC Advances 8, 7414, 2018
    3. Composition-tunable synthesis of large-scale Mo1-xWxS2 alloys with enhanced photoluminescence, Juhong Park, Min Su Kim, Bumsu Park, Sang Ho Oh, Jeongyong Kim, and Wonbong Choi, ACS Nano (under review) 2017
    4. Synthesis of uniform single layer WS2 for tunable photoluminescence, Juhong Park, Min Su Kim, Eunho Cha, Jeongyong Kim & Wonbong Choi, Scientific Reports, 7, 16121 DOI:10.1038/s41598-017-16251-2 (2017)
    5. A binder free and high sulfur loaded three-dimensional carbon nanotubes electrode for high performance Li-S Batteries, Mumukshu D. Patel, Eunho Cha, Wonbong Choi, 77 (11) 437-445 ECS Transactions (2017)
    6. Directly Deposited Porous Two-Dimensional MoS2 Films as Electrocatalysts for Hydrogen Evolution Reactions, Mumukshu D. Patel, Jibo Zhang, Juhong Park, Nitin Choudhary, James M. Tour, and Wonbong Choi, Materials Letters (2017) (Under review)
    7. High performance rechargeable Li-S batteries using binder-free large sulfur-loaded three- dimensional carbon nanotubes, Mumukshu D. Patel, Eunho Cha, Chiwon Kang, Bharat Gwalani, Wonbong Choi, , 118, 120-126 Carbon http://dx.doi.org/10.1016/j.carbon.2017.03.035 (2017)
    8. Recent development of 2D materials and their applications, Wonbong Choi, Nitin Choudhary, Juhong Park, Deji Akinwande, Younghee Lee, Materials Today, 116-130, 20, (2017)

    2016

    1. Raman and X-ray Photoelectron Spectroscopy Investigation of the Effect of Gamma-Ray Irradiation on MoS2, Burcu Ozden, Min P. Khanal, Juhong Park, Sunil Uprety, Vahid Mirkhani, Kosala Yapabandara1, Kyunghyuk Kim, Marcelo Kuroda, M. J. Bozack, Wonbong Choi, and Minseo Park, Micro & Nano Letters, (2016)
    2. (Invited Review, Featured Paper) Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries, Chiwon Kang, Eunho Cha, Mumukshu D. Patel, H. Felix Wu, Wonbong Choi, (Invited Review Paper) Journal of Carbon Research C 2016, 2(4), 23; doi:10.3390/c2040023 (2016)
    3. MoS2-reinforced 3D carbon nanotubes for next generation Li-ion batteries, Mumukshu D. Patel, Eunho Cha, Nitin Choudharya, Chiwon Kang, Wonki Lee, Jun Yeon Hwang, Wonbong Choi, Nanotechnology, 27 (2016) 495401
    4. Wafer Scale Patterned Growth of Vertically Stacked Few Layer 2D MoS2/WS2 van der Waals Heterostructures, Nitin Choudhar, Juhong Park, Jun Yeon Hwang, Heesuk Chung, Kenneth H. Dumas, Saiful I. Khondaker, Wonbong Choi, Yeonwoong Jung, Scientific Report (Nature)  6, 25456 (2016)
    5. Pine Wood Extracted Activated Carbon through Self-Activation Process for High-Performance Lithium-Ion Battery, Changlei Xia, Chiwon Kang, Mumukshu D. Patel, Liping Cai, Bharat Gwalani, Raj Banerjee, Sheldon Q. Shi,and Wonbong Choi, Sustainable Chemistry, 4000-4007, 1, 2016
    6. Thermal conductivity measurement of few layer graphene film by a micropipette sensor with laser point heating source, JY Jeong, KM Lee, R Shrestha, K Horne, S Das, W Choi, M Kim, TY Choi, Materials Research Express 3 (5), 055004, 2016
    7. Three-dimensional free-standing carbon nanotubes for a flexible lithium-ion battery anode Chiwon Kang , Eunho Cha , Rangasamy Baskaran and Wonbong Choi, Nanotechnology 27 (2016) 105402
    8. Synthesis of large scale MoS2 for electronics and energy applications, Nitin Choudhary, Mumukshu Patel, Juhong Park, Ben Sirota, Wonbong Choi, Jr. of Materials, 31(7), April 14, 2016.

    2015

    1. Directly deposited MoS2 thin film electrodes for high performance supercapacitors, N. Choudhary, M. Patel, Y Ho, N. Dahotre, J. Hwang, W. Choi, Jr. Materials Chemistry A (2015) DOI: 10.1039/C5TA08095A
    2. Three-dimensional carbon nanotubes for high capacity lithium-ion batteries, Chiwon Kang, Mumukshu Patel, Baskaran Rangasamy, Kyu-Nam Jung, Changlei Xia, Sheldon Shi, Wonbong Choi, Jr. Power Sources, 299 465-471 (2015)
    3. Highly Sensitive Wide Bandwidth Photodetector Based on Internal Photoemission in CVD Grown p-Type MoS2/Graphene Schottky Junction, PhaniKiran Vabbina, Nitin Choudhary, Al-Amin. Chowdhury, Raju Sinha, Mustafa Karabiyik, Santanu Das, Wonbong Choi, and Nezih Pala, ACS Appl. Mater. Interfaces, 7 (28), pp 15206–15213, July 13, 2015
    4. “Unusually High Optical Transparency in Hexagonal Nano-Patterned Graphene with Enhanced Conductivity by Chemical Doping” Duyoung Choi, Cihan Kuru, Chulmin Choi, Kunbae Noh, Sookhyun Hwang, Wonbong Choi and Sungho Jin, 11, 3143-3152 Small (2015).
    5. Thickness modulated CVD-grown MoS2 for transparent and flexible electronic devices, Juhong Park, Nitin Choudhary, Jesse Smith, Gilsik Lee, Moonkyung Kim, and Wonbong Choi, Applied Physics Letters, 106 012104 (2015) doi: 10.1063/1.4905476

    2014

    1. “Field emission with ultralow turn on voltage from metal decorated carbon nanotubes”, Sridhar S1, Tiwary C, Vinod S, Taha-Tijerina JJ, Sridhar S, Kalaga K, Sirota B, Hart AH, Ozden S, Sinha RK, Harsh, Vajtai R, Choi W, Kordás K, Ajayan PM. ACS Nano,  2014 8(8):7763-70. doi: 10.1021/nn500921s. (2014)
    2. Growth of Large Scale and Thickness-Modulated MoS2 Nanosheets, Nitin Choudhary, Juhong Park, Junyeon Hwang, Wonbong Choi, ACS Appl. Mater. Interfaces, 6 (23), pp 21215–21222 (2014)
    3. “Nano Patterned Graphene Field Effect Transistor Fabricated using Block Copolymer Lithography” Duyoung Choi, Cihan Kuru, Chulmin Choi, Kunbae Noh, Soon-Kook Hong, Santanu Das,Wonbong Choi and Sungho Jin, Materials Research Letters, 2(3) 131-139 (2014).
    4. Synergistic metal-metal oxide nanoparticles supported electrocatalytic graphene for improved photoelectrochemical glucose oxidation, Devadoss, A., Sudhagar, P., Das, S., Lee, S.Y., Terashima, C., Nakata, K., Fujishima, A.,Choi, W., Paik, U., ACS Applied Materials and Interfaces 6 (7) , pp. 4864 (2014)
    5. Interfacial bonding characteristics between graphene and dielectric substrate, Santanu Das, Debrupa Lahiri, Arvind Agarwal and Wonbong Choi, Nanotechnology 25 045707 (2014)
    6. Si quantum dots wrapped by graphene as multi layered thin films for lithium- ion battery, Rangasamy Baskaran, Wonbong Choi, Carbon 77 1065-1072 (2014)
    7. Large Scale Patternable 3D Carbon Nanotubes-Graphene Structure for Flexible Li-ion Battery, Chiwon Kang, Rangasamy Baskaran, Junyeon Hwang, Bon-Cheol Ku,Wonbong Choi, Carbon 68. 493-500 (2014)
    8. Controlled Synthesis of ZnO Nanoflakes on Arbitrary Substrates at Ambient Conditions, Phani Kiran Vabbina, Nezih Pala, Santanu Das, WonBong Choi,  Particle and Particle Systems Characterization 31 (2) , pp. 190 (2014)
    9. Growth of Junctions in 3D Carbon Nanotube-Graphene Nanostructures: A Quantum Mechanical Molecular Dynamic Study, Jianbing Niu, Mingtao Li, Wonbong Choi, Liming Dai, and Zhenhai Xi, Carbon, 67 627 (2014)
    10. Synthesis, Properties and Applications of 2-D Materials: A Comprehensive Review, Santanu Das, Moonkyung Kim, Jo-won Lee and Wonbong Choi, Critical Reviews in Solid State and Materials Sciences 231 39 (2014)
    11. Graphene synthesis and application for solar cells, Santanu Das, P. Sudhagar, Y. S. Kang and Wonbong Choi, Jr. of Materials Research 29 (3) 299 (2014)

    2013

    1. Improving High Frequency Characteristics of Graphene FETs by Field Controlling Electrodes, C. Al-Amin, P.K. Vabbina, M. Karabiyik, R. Sinha, N.Pala, W.Choi, IEEE Electron Device Letters, 34, 1193, (2013).
    2. “Measurements of the adhesion energy of graphene to metal substrates”, Santanu Das, D. Lahiri, Dong-Yoon Lee, Arvind Agarwal and Wonbong Choi, Carbon 59, 121-129, (2013)
    3. Zheng Yan, Lulu Ma, Yu Zhu,  Indranil Lahiri, Zheng Liu, Myung Gwan Hahm,  Shubin Yang, Changsheng Xiang, Wei Lu, Zhiwei Peng, Zhengzong Sun, Jun Lou, Wonbong Choi, Pulickel M. Ajayan, James M. Tour, Three-dimensional carbon nanotube-graphene hybrids on porous nickel films for device fabrication. ACS Nano 7, 58-64 (2013)
    4. Indranil Lahiri, Wonbong Choi, Carbon Nanostructures in Lithium Ion Batteries: Past, Present and Future. (Invited Review) Critical Reviews in Solid State and Materials Sciences, 128-166, Volume 38, 2013
    5. Santanu Das, P. Sudhagar, Eisuke Ito,  Dong-yoon Lee,  S.Nagarajan, Yong Soo Kang, and Wonbong Choi,  “Effect of HNO3 functionalization on large scale graphene for enhanced tri-iodide reduction in dye-sensitized solar cells” Journal of Materials Chemistry, 22, 20490-20497 (2012)

    2012

    1. Santanu Das, P. Sudhagar, S Nagarajan, E Eto, S Y Lee, Yong Soo Kang and WonBong Choi: Synthesis of CoS decorated large scale graphene film for high efficiency solar energy conversion: Carbon, 50, 4815, (2012).
    2. Indranil Lahiri, Joyce Wong, Zilu Zhou, Wonbong Choi, Ultra-high current density multiwall carbon nanotube field emitter structure on three-dimensional micro-channeled copper. Appl. Phys. Lett. 101, doi: 10.1063/1.4745010 (2012)
    3. Chiwon Kang, Indranil Lahiri, Rangasamy Baskaran, Jun Y. Hwang, Won-Gi Kim, Yang-Kook Sun, Rajarshi Banerjee, Wonbong Choi, Multiwall Carbon Nanotube Based Anodes on 3D Current Collector for Li-Ion Batteries. Journal of Power Sources 219, 364 (2012)
    4. Debrupa Lahiri, Santanu Das, Arvind Agarwal and Wonbong Choi Unfolding the Damping Behavior of Multilayer Graphene Membrane in Low Frequency Regime: ACS Nano, 6, 3992,  2012
    5. Protein-carbon nanotube sensors: Single platform integrated micro clinical lab for monitoring blood analytes,Viswanathan, S., Li, P., Choi, W., Filipek, S., Balasubramaniam, T.A., Renugopalakrishnan, V., Methods in Enzymology 509 , pp. 165 (2012)

    2011

    1. “Amplifying Charge Transfer Characteristic of Graphene for Triiodide Reduction in Dye-Sensitized Solar Cells“, S. Das, P. Sudhagar, D. H. Song, E. Eto, S. Y. Lee, Y. S Kang and WonBong Choi, Adv. Func. Mater.,  21, 3729-3736 (2011)
    2. Interface control: A modified rooting technique for enhancing field emission from multiwall carbon nanotube based bulk emitters, Indranil Lahiri, Wonbong Choi, Acta Materialia, 59, 2011, 5411-5421.
    3. Ultra-high current density multiwall carbon nanotube field emitter structure on three-dimensional micro-channeled copper, Indranil Lahiri, Wonbong Choi,  Acta Mater., 2011, 59, 5411-5421.
    4. Ultrathin alumina coated carbon nanotubes as negative electrodes for high capacity and safe Li-ion battery, Indranil Lahiri, Seung-Min Oh, Jun Y. Hwang, Chiwon Kang, Hyeongtag Jeon, Rajarshi Banerjee, Yang-Kook Sun, Wonbong Choi, J. Mater. Chem.,21, 13621, (2011)
    5. Application of Carbon nanostructures—energy to electronics, Indranil Lahiri, Santanu Das, Chiwon Kang, and Wonbong Choi, Journal of Metal, Vol. 63 No. 6 (2011)
    6. Synthesis and characterization of self-organized multilayered graphene-carbon nanotube hybrid films, Santanu Das,a Raghunandan Seelaboyina,a Ved Verma,a Indranil Lahiri,a Jun Yeon Hwang,b Rajarshi Banerjeeb and Wonbong Choi*J. Mater. Chem., 2011, 21 (20), 7289 – 7295
    7. Dye-sensitized solar cells using graphene-based carbon nano composite as counter electrode Hyonkwang Choi, Hyunkook Kim, Sookhyun Hwang, Wonbong Choi, Minhyon Jeon, Solar Energy Materials and Solar Cells, Volume 95, Issue 1, Pages 323–325 (2011)

    2010

    1. Tuning electrical conductance of serpentine single-walled carbon nanotubes, Jun Huang, Bei Wang, Indranil Lahiri, Awnish K. Gupta, Peter C. Eklund and Wonbong Choi, Advanced Functional Materials, 20 4388 (2010)
    2. Carbon Nanotubes: How strong is their bond with the substrate?,  Indranil Lahiri, Debrupa Lahiri, Sungho Jin, Arvind Agarwal, Wonbong Choi,  ACS Nano 4, 3440 (2010)
    3. An all-graphene based transparent and flexible field emission device, Indranil Lahiri, Ved Prakash Verma, Wonbong Choi, Carbon 49. 1614 (2010)
    4. Large-area graphene on polymer film for flexible and transparent anode in field emission device, Ved Prakash Verma, Santanu Das, Indranil Lahiri and Wonbong Choi, Appl. Phys. Lett. 96 203108 (2010)
    5. High-capacity, long-cycle stability of lithium ion battery anode using interface-controlled binder-free MWCNT grown on copper, Indranil Lahiri, Sung-Woo Oh, Jun Y. Hwang, Sungjin Cho, Yang-Kook Sun, Raj Banerjee, Wonbong Choi, ACS Nano, 4 3440 (2010)
    6. Effect of Bending Radius on the Resistivity and Raman Spectrum of Single-Walled Carbon Nanotubes, Bei Wang, Jun Huang, P. Eklund, W. Choi, Physical Review B, 81, 115422 (2010)
    7. The Raman spectroscopic studies of aligned MWCNTs treated under high pressure and high temperature,  Srinija Repalle, JiuhuaChen, Vadym Drodz, Wonbong Choi, Journal of Physics and Chemistry of Solids (2010), 71 1150–1153 (2010)
    8. (Invited Paper) Synthesis of Graphene and Its Applications: a review W. Choi, I. Lahiri, R. Seelaboyna, Y. Kang , Critical Reviews in Solid State and Materials Sciences, 35, 52-71 (2010)
    9. Enhanced field emission from multi-walled carbon nanotubes grown on pure copper substrate,  Indranil Lahiri, Raghunandan Seelaboyina, Jun Y. Hwang, Raj Banerjee and Wonbong Choi, Carbon 48, 1531-1538 (2010)
    10. Fabrication of Nanoelectrodes using Individual Multi-walled Carbon Nanotubes and Their Cyclic Voltammetric Properties" Sookhyun Hwang, Harindra Vedala, Taehyung Kim, Hyonkwang Choi, Wonbong Choi,  Minhyon Jeon,  Journal of The Electrochemical Society, 157 (4) (2010)
    11. Fabrication and Electrochemical Characterization of Multi-walled Carbon Nanotube Electrodes for Applications to Nano-electrochemical Sensing,  Sookhyun Hwang, Harindra Vedala, Taehyung Kim, Wonbong Choi, Hyonkwang Choi and Minhyon Jeon, Journal of the Korean Physical Society, Vol. 56, 677-681 (2010)
    12. Controlled Growth of Single-walled Carbon Nanotubes for Unique Nanodevices, Jun Huang, Unjeong Kim, Bei Wang, Indranil Lahiri, Eunhong Lee,  Peter C. Eklund and Wonbong Choi, Journal of Nanotechnology and Nanoscience, Vol. 10, 1-8, 2010
    13. Ultra-low concentration NO gas sensing by functionalized single zinc oxide nanowire”, Ved P. Verma, Santanu Das, Sookhyun Hwang, Hyonkwang Choi, Minhyon Jeon, Wonbong Choi  Materials Science and Engineering B (2010)
    14. Carbon-nanotube-embedded novel three-dimensional alumina microchannel cold cathodes for high electron emission, Raghunandan Seelaboyina, Indranil Lahiri, Wonbong Choi , Nanotechnology, 21, 1452206 (2010) 
    15. "Intermediate temperature tribological behavior of carbon nanotube reinforced plasma sprayed aluminum oxide coating",  Surface Coatings and Technology journal, Anup K. Keshri, J. Huang, W. Choi, A. Agarwal, 204, 1847-1855 (2010)
    16. Synthesis of aluminum oxide coating with carbon nanotube reinforcement produced by chemical vapor deposition for improved fracture and wear resistance, Anup K. Keshri, Jun Huang, Virendra Singh, Wonbong Choi, Sudipta Seal, Arvind Agarwal, Carbon 48, 431-442 (2010)

    2008

    1. Chen-Zhong Li, Wonbong Choi, Cheng-Hsin Chuang, Size effects on the photoelectrochemical activities of single wall carbon nanotubes, Electrochemica Acta (2008)
    2. S. Hwang, J. Moon, S. Lee, D.H. Kim, D. Lee, W. Choi and M. Jeon, Carbon nanotubes as counter electrode for dye-sensitised solar cell, , Electronics Letters, 43 (2007)
    3. Harindra Vedala, Somenath Roy, Melissa Doud, Kalai Mathee and Wonbong Choi, The effect of environmental factors on the electrical conductivity of a single oligo-DNA molecule measured using single-walled carbon nanotube nanoelectrodes, Nanotechnology 19 265704,(2008)
    4. J. Huang and Wonbong Choi, Bending of single wall carbon nanotubes during growth and electrical characterization, Nanotechnology 19, 505601 (2008)
    5. Ved Prakash Verma, Do-Hyun Kim, Hoonha Jeon, Minhyon Jeon and Wonbong Choi, Characteristics of Low doped Gallium-Zinc Oxide Thin Film Transistors and effect of Annealing under High Vacuum, Thin Solid Films 516 8736-8739 (2008)
    6. Ved Prakash Verma, Hoonha Jeon, Sookhyun Hwang, Minhyon Jeon and Wonbong Choi, Enhanced Electrical Conductance of ZnO Nanowire FET by Non-destructive Surface Cleaning IEEE Trans. Nano. 7, 782-786 (2008)
    7. Do-Hyun Kim, Hoonha Jeon, Geumchae Kim, Suejeong Hwangboe, Ved Prakash Verma, Wonbong Choi, Minhyon Jeon, Comparison of the optical properties of undoped and Ga-doped ZnO thin films deposited using RF magnetron sputtering at room temperature, Optics Communication, 281, 2120 (2008)
    8. Hoonha Jeon, Ved Prakash Verma, Sookhyun Hwang, Sooyeon Lee, Chiyoung Park, Do-Hyun Kim, Wonbong Choi, and Minhyon Jeon; Characteristics of Gallium-Doped Zinc Oxide Thin-Film Transistors Fabricated at Room Temperature Using Radio Frequency Magnetron Sputtering Method, Japanese Jr. Appl. Physics, 47, No. 1, 2008, pp. 87–90,
    9. Raghunandan Seelaboyina, Srinivasarao Bodepalli, Kyungseok Noh, Minhyon Jeon, Wonbong Choi, Enhanced field emission from aligned multistage carbon nanotube emitter arrays, Nanotechnology, 19, 065605 (2008)
    10. S. ROY, H. VEDALA, A. ROY, D. KIM, M. DOUD, K. MATHEE, H. SHIN, N. SHIMAMOTO, V. PRASAD, W. CHOI, Electronic detection of single-molecule DNA hybridization using single-walled carbon nanotubes,  Nano Letters 8, 26-30 (2008)

    2007

    1. Wonbong Choi, Do-hyun Kim, Young-chul Choi, and Jun Huang, “Y-junction single-wall carbon nanotube electronics”, Journal of Materials, March 44 (2007)
    2. Recent Progress of Carbon Nanotube Field Emitters and Their Application, W. Choi, R. Seelaboyina, Recent Patent in Nanotechnology, 1, 238-244 (2007)
    3. “Catalysts effect on single-walled carbon nanotube branching”, Jun Huang, Do Hyun Kim, Raghunandan Seelaboyina, Banglore K. Rao, Dake Wang, Minseo Park and WonBong Choi, Diamond and Related Materials, 16 1524 (2007)
    4. Do-Hyun Kim, Hoonha Jeon, Jae-Young Leem and Minhyon Jeon, Ved Prakash Verma and Wonbong Choi, Seong Hui Lee and Jooho Moon; Influence of Grain Size and Room-Temperature Sputtering Condition on Optical and Electrical Properties of Undoped and Ga-Doped ZnO Thin Films, Journal of the Korean Physical Society, Vol. 51, No. 6, December 2007, pp. 1987~1992
    5. Hoonha Jeon, Kyoungseok Noh, Do-Hyun Kim and Minhyon Jeon, Ved Prakash Verma and Wonbong Choi, Dongjo Kim and Jooho Moon; Low-Voltage Zinc-Oxide Thin-Film Transistors on a Conventional SiO2 Gate Insulator Grown by Radio-Frequency Magnetron Sputtering at Room Temperature, Journal of the Korean Physical Society, Vol. 51, No. 6, December 2007, pp. 1999~2003
    6. Hoonha Jeon, Ved Prakash Verma, Kyoungseok Noh, Do-Hyun Kim, Wonbong Choi, Minhyon Jeon; Fabrication and characteristics of ZnO- and Ga doped ZnO thin film transistor using rf magnetron sputtering at room temperature; Journal of the Korean Vacuum Society, Vol.16 No.5, September 2007, pp.359~365
    7. The optical properties of GZO and ZnO thin films deposited by RF magnetron sputtering, S.J. Hwangboe, H.H. Jeon, G.C. Kim, J.S. Lee, D.H. Kim, W.B. Choi, M.H. Jeon, Jr of Korean Vac. Soc. 16 453-457 (2007)

    2006

    1. “Pseudo Y-junction Single-Walled Carbon Nanotubes Based Ambipolar Transistor Operating at Room Temperature”, Do-Hyun Kim, Jun Huang, Bangalore K. Rao and Wonbong Choi, IEEE Transaction on Nanotechnology, 5 731 (2006).
    2. “Transport Phenomena and Conduction Mechanism of Single-Walled Carbon Nanotubes (SWNT) at Y- and Crossed- Junctions”, Do-Hyun Kim, Jun Huang, Hoon-Kyu Shin, Somenath Roy and Wonbong Choi, Nano Letters 6 (12) 2821-2825 (2006).
    3. “Multistage field enhancement of tungsten oxide nanowires and its field emission in various vacuum conditions”, Raghunandan Seelaboyina, Jun Huang, Jucheol Park, Dong Hun Kang and Won Bong Choi, Nanotechnology 17 4840-4844 (2006)
    4. "Nonlinear characteristics of pseudo-Y-junction single-walled carbon nanotubes", Do-Hyun Kim, Jun Huang, Bangalore K. Rao, and Wonbong Choi, J. Appl. Phys. 99, 6106 (2006), Virtual Journal of Nanoscale Science & Technology, Vol 13, No.12, 2006
    5. “Effect of PVA functionalisation on hydrophilicity of Y-junction single wall carbon nanotubes”, Harindra Vedala, Jun Huang, Xiang Yang Zhou, Gene Kim, Somenath Roy, Won Bong Choi, Applied Surface Science, Volume 252, Issue 22, 15 September 2006, Pages 7987-7992.
    6. Enhanced Field Emission of thin-Multiwall Carbon Nanotubes by Electron Multiplication from Microchannel Plate, Raghunandan Seelaboyina, Jun Huang, Won Bong Choi, Applied Physics Letters, 88, 194104 (2006). Virtual Journal of Nanoscale Science & Technology, Vol 13, No.21, 2006
    7. “Vertically aligned multiwall carbon nanotube bioprobes on silicon platform for cholesterol detection”, Somenath Roy, Harindra Vedala, Vish Prasad, Wonbong Choi, Nanotechnology 17 S14 (2006).

    ~2005

    1. Y. Choi and W. Choi, “Synthesis of Y-junction single-wall carbon nanotubes”, CARBON 43 2737(2005).
    2. Won Bong Choi, Eunju Bae, Donghun Kang, Soodoo Chae, Byung-ho Cheong, Ju-hye Ko, Eungmin Lee and Wanjun Park, “Aligned carbon nanotubes for nanoelectronics”, Nanotechnology 15 (2004).
    3. K. S. Kim, D. J. Bae, J. R. Kim, K. A. Park, K. G. Jeon, S. C. Lim, J.-J. Kim, W. B. Choi, C. Y. Park and Y. H. Lee, 'Band gap engineering of a carbon nanotube by hydrogen functionalization', Current Applied Physics, 4(5), 559-562, Aug. 2004
    4. Hwa-Mok Kim, T.W. Kang, K.S. Chung, J.P. Hong, W.B. Choi, “Field emission display of wide-bandgap gallium nitride nanorod arrays grown by hydride vapor phase epitaxy”, Chemical Physics Letters 377 491-494 (2003).
    5. Yo-sep Min, Eun Ju Bae, Kwang Seok Jeing, Young Jin Cho, Jung-Hyun Lee, Won Bong Choi and Gyeong-Su Park,  “Ruthenium Oxide Nanotube Arrays Fabricated by Atomic Layer deposition Using a Carbon Nanotube Template, Adv. Mater. 15 1019 (2003).
    6. Won Bong Choi, Byung-Ho Cheong, Soodoo Chae, Eunju Bae, and Jo-Won Lee, Jae-Ryoung Kim , Ju-Jin Kim “Carbon nanotube based non-volatile memory with oxide-nitride-oxide film and nanoscale channel”, Appl. Phys. Lett. 82 275 (2003).
    7. Won bong Choi, Byoung-Ho Cheong, Ju jin Kim, Jaeuk Ju, Eunju Bae, Gwangsuk Chung, “Selective growth of carbon nanotube for nano-scale transistor”, Advanced Functional Materials, 13 80 (2003).
    8. Keun Soo Kim, Kyung Ah Park, Hyun Jin Kim, Dong Jae Bae, Seong Chu Lim, Young Hee Lee,Jae Ryong Kim, Ju-Jin Kim,Won Bong Choi, Band gap modulation of a carbon nanotube by hydrogen functionalization, J. Kor. Phys. Soc. 42, S137-S142 (Feb. 2003).
    9. Keun Soo Kim, Dong Jae Bae, Jae Ryong Kim, Kyung Ah Park, Seong Chu Lim, Ju-Jin Kim, Won Bong Choi, Chong Yun Park, Young Hee Lee, Modification of Electronic Structures of a Carbon Nanotube by Hydrogen Functionalization, Adv. Mater. 14 1818 (2002).
    10. Eun Ju Bae, Kwang Seok Jeong, Jae Uk Chu, In Kyeong Yoo, Won Bong Choi,, Gyeong-Su Park, and Seahn Song, “Selective Growth of Carbon Nanotubes on Prepatterned Porous Anodic Aluminum Oxide”, Advanced Materials 14 277 ( 2002).
    11. Won Bong Choi, Ju-Jin Kim, Jae Uk Chu, Kwang Seok Jeong, Eun Ju Bae, Jeong-O Lee, Jo Won Lee, Ultrahigh-density nanotransistors by using selective-grown vertical carbon nanotubes, Appl. Phys. Lett. Nov. 19 79  (2001)
    12. Yi W, Yu SG, Lee W, Han IT, Jeong T, Woo Y, Lee J, Jin S, Choi W, Heo J, Jeon D, Kim JM, “Secondary electron emission yields from MgO deposited on carbon nanotubes, JOURNAL OF APPLIED PHYSICS 89 (7): 4091-4095 APR 7 2001
    13. Y.S. Choi, J.H. Kang, Y.J. Park, W.B. Choi, C.J. Lee, S.H. Lee, S.H. Jo, C.G. Lee, J.H. You, J.E. Jung, N.S. Lee, J.M. Kim, “An under-gate triode structure field emission display with carbon nanotube emitters”, Diamond and Related Materials 10 1705-1708 (2001).
    14. W.B. Choi, Y.W. Jin, H.Y. Kim, S.J. Lee, M.J. Yun, J.H. Kang, Y.S. Choi, N.S. Park, N.S. Lee, and J.M. Kim, Electrophoresis deposition of carbon nanotubes for triode-type field emission display, Appl. Phys. Lett. 1547  78 (2001).
    15. Gyeong-Su Park, Won Bong Choi, Jong Min Kim, Young Chul Choi, Young Hee Lee, Chang Bin Lim, “Structural investigation of gallium oxide (b-Ga2O3) nanowires grown by arc-discharge” Jr of Crystal Growth 220 494-500 (2000).
    16. D.S. Chung, W.B. Choi, J.H. Kang, H.Y. Kim, I.T. Han, Y.S. Park, Y.H. Lee, N.S. Lee, J.E. Jung, and J.M. Kim, “Field emission from 4.5-inch single walled and multi walled carbon nanotube films”, Jr. of Vac. Sci. & Tech B, 18 1054-1058 (2000).
    17. W. B. Choi, Y. H. Lee, D. S. Chung, N. S. Lee, and J. M. Kim, 'Field emission from 4.5" single-walled and multi-walled carbon nanotube films', J. Vac. Sci. Tech. B. 18(2), 1054-1058 (2000)
    18. Young Chul Choi, Won Seok Kim, Young Soo Park, Seung Mi Lee, Dong Jae Bae, Young Hee Lee, Gyeong-Su Park, Won Bong Choi, Nae Sung Lee, and Jong Min Kim,”Catalytic Growth of b-Ga2O3 Nanowires by Arc Discharge”, Advanced Materials 12 746-750 (2000).
    19. Won Bong Choi, Young Hee Lee, Nae Sung Lee, Jung Ho Kang, Sang Hyeun Park, Hoon Young Kim, Deuk Seok Chung, Seung Mi Lee1, So Youn Chung and Jong Min Kim “Carbon-Nanotubes for Full-Color Field-Emission Displays”, Jpn. J. Appl. Phys. Vol.39 Part 1, No. 5A,  May  2560-2564  (2000).
    20. N.S. Lee, H.W. Lee, J. Kim, S.Y. Jung, J.H. Choi, Y.J. Park, J.W. Kim, J.E. Jung, N.S. Park, S.H. Park, Y.W. Jin, W.B. Choi, and J.M. Kim and J.K. Chee,”Structure and process characterization of high voltage operated field emission displays with focus electrodes”  J. Vac. Sci. Technol. B 18 923 (2000).
    21. J.M. Kim, H.W. Lee, Y.S. Choi, N.S. Lee, J.E. Jung, J.W. Kim, W.B. Choi, Y.J. Park, J.H. Choi, Y.W. Jin, W.K. Yi, and N.S. Park, G.S. Park, J.K. Chee,” Integration of high voltage field emission display followed by macro and nanostructural analysis on microtip”, J. Vac. Sci. Technol. B 18 888 (2000).
    22. W.B. Choi, N.S. Lee, W.K. Yi, Y.W. Jin, Y.S. Choi, I.T. Han, D.S. Chung, H.Y. Kim, J.H. Kang,Y.J. Lee, M.J. Yun, S.H. Park, S. Yu, J.E. Jang, J.H. You, J.M. Kim, Korean Society for Information Display, January (2000)
    23. W.B. Choi, N.S. Lee, J.M. Kim, “Carbon nanotubes for field emission application”, Bulletin of the Korean Institute of Electrical and Electronic Material Engineering, vol.13, No.5, 44-47 2000
    24. W.B. Choi, J.M. Kim,”Carbon nanotube field emission display”, Bulletin of the Korean Institute of Electrical and Electronic Material Engineering, 7-11,  vol.12, No 7 1999
    25. W.B. Choi, N.S. Lee, W.K. Yi, Y.W. Jin, Y.S. Choi, I.T. Han, D.S. Chung, H.Y. Kim, J.H. Kang,Y.J. Lee, M.J. Yun, S.H. Park, S. Yu, J.E. Jang, J.H. You, J.M. Kim*, “The first 9-inch carbon-nanotube based field-emission displays for large area and color applications”, SID 2000 Digest, pp324-327
    26. W.B. Choi, D. S. Chung, J.H. Kang, H.Y. Kim, Y.W. Jin, I.T. Han, Y.H. Lee, J.E. Jung, N.S. Lee, G. S. Park, and J.M. Kim, “Fully sealed, high-brightness carbon nanotube field emission display”, Appl. Phys. Lett. 75, 3129  (Nov. 1999).
    27. Kang, J. H.; Choi, Y. S.; Choi, W. B.; Lee, N. S.; Park, Y. J.; Choi, J. H.; Kim, H. Y.; Lee, Y. J.; Chung, D. S.; Jin, Y. W.; You, J. H.; Jo, S. H.; Jung, J. E.; Kim, J. M.   , “Under-gate triode type field emission displays with carbon nanotube emitters”.     Materials Research Society   (2001),  621 (Electron-Emissive Materials, Vacuum Microelectronics and Flat-Panel Displays),  R5.2.1-R5.2.5.  CODEN: MRSPDH  ISSN: 0272-9172. 
    28.  Kim, H. Y.; Choi, W. B.; Lee, N. S.; Chung, D. S.; Kang, J. H.; Han, I. T.; Kim, J. M.; Moon, M. H.; Kim, J. S.  Purification and characterization of single-walled carbon nanotubes.  Materials Research Society  (2000),  593(Amorphous and Nanostructured Carbon),  123-127.  CODEN: MRSPDH  ISSN: 0272-9172. 
    29. Young Chul Choi, Dong Jae Bae, Young Hee Lee, Byung Soo Lee, In Taek han, Won Bong Choi, Nae Sung Lee, Jong Min Kim, “Low temperature synthesis of carbon nanotubes by microwave plasma-enhanced chemical vapor deposition”, Synthetic Metals 108 159-163 (2000).
    30. Young Chul Choi, Young Min Shin, Young Hee Lee, Byung Soo Lee, Gyeong-Su Park, Won Bong Choi, Nae Sung Lee, Jong Min Kim, “ Controlling the diameter, growth rate, and density of vertically …” Appl. Phys. Lett. 24 April, 76, 2367-2369 (2000).
    31. Cheol Jin Lee, Dae Woon Kim, Tae Jae Lee, Young Chul Choi, Young Soo Park, Young Hee Lee, Won Bong Choi, Nae Sung Lee, Gyeong-Su Park, Jong Min Kim, “Synthesis of aligned carbon nanotubes using thermal chemical vapor deposition”, Chemical Physics Letters 312 461-468 (1999).
    32. Young Chul Choi, Dong Jae Bae, Young Hee Lee, Byung Soo Lee, Gyeong Su Park, Won Bong Choi, Nae Sung Lee, Jong Min Kim, “Growth of carbon nanotubes by microwave plasma-enhanced chemical vapor deposition at low temperature”, J. Vac. Sci. Technol. A 18 1864-1868 (2000).
    33. Jong Min Kim, Won Bong Choi, Nae Sung Lee, Jae Eun Jung,”Field emission from carbon nanotubes for displays”,  Diamond and Related Materials, 9 1184  (2000).
    34. Y.C. Choi, Y.S. Park, Y.H. Lee, W.B. Choi, N.S. Lee, J.M. Kim, C.J. Lee, D.W. Kim, T.J. Lee, “Fabrication of electron field emitters using carbon nanotubes” International Journal of High Speed Electronics and Systems 10(1), 5-11 (2000).
    35. C.J. Lee, D.W. Kim, T.J. Lee, Y.C. Choi, Y.S. Park, W.S. Kim, Y.H. Lee, W. B. Choi, N. S. Lee, J. M. Kim, Y. G. Choi, and S.C. Yu, “Synthesis of uniformly distributed carbon nanotubes on a large area of Si substrates by thermal chemical vapor deposition”, Appl. Phys. Lett. 75 1721 (1999).
    36. S.W. Lee, I.T. Han, N. Lee, W.B. Choi, J.M. Kim, and D. Jeon, “Field emission of diamond films grown on glass substrates at low temperature”, The Journal of Korea Vacuum Science & Technology, vol.3 April pp. 43-48 (1999).
    37. D.H. Kang, V.V. Zhirnov, G.J. Wojak, E.A. Preble, W.B. Choi, J.J. Hren, and J.J. Cuomo,”Investigation of thickness effects on AlN coated metal tips by in situ I-V measurement”,  J. Vac. Sci. Technol. B 17 632 (1999).
    38. M.Park, D.R. McGregor, L. Bergman, R.J. Nemanich, W.B. Choi, and V.V. Zhirnov,”Raman analysis and field emission study of ion beam etched diamond films”,  J. Vac. Sci. Technol.B 17 700 (1999).
    39. M.Park, A.T. Sowers, C. Lizzul Rinne, R. Schlesser, L. Bergman, R.J. Nemanich, V.V. Zhirnov, W.B. Choi, “Effect of nitrogen incorporation on electron emission from chemical vapor deposited diamond”, J. Vac. Sci. Technol B April 17 734 (1999).
    40. Minseo Park, W.B. Choi, S.K. Streiffer, J.J. Hren, J.J. Cuomo, “Secondary electron emission patterning of diamond with hydrogen and oxygen plasmas”, Appl. Phys. Lett. May 72 2580 (1998).
    41. W.B. Choi, R.Schlesser, G. Wojak, J.J. Cuomo, Z. Sitar, and J.J. Hren, "Electron energy distribution of diamond coated field emitters", J. Vac. Sci. & Tech. B 16 716 April (1998).
    42. W.B. Choi, M.T. McClure, R.Schlesser, Z. Sitar and J.J. Hren : Enhanced field emission from diamond coated molybdenum emitters,  J. de Physique III 6 C5-97 August 1996.
    43. V.V. Zhirnov, G.J. Wojak, W.B. Choi, J.J. Cuomo, and J.J. Hren, "Wide baand gap materials for field emission devices", J. Vac. Sci. Tech. A, 15(3), 1997
    44. M.Q. Ding, A.F. Myers, W.B. Choi, R,D, Vispute, S.M. Camphausen, J. Narayan, J.J. Cuomo and J.J. Hren: Field emission from amorphous diamond coated Mo tip emitters by pulsed laser deposition, J. Vac. Sci. Technol. B 15(4) 840 (1997)
    45. R. Schlesser, M.T. McClure, W.B. Choi, J.J. Hren, and Z. Sitar: Energy distribution of field emitted electrons from diamond coated molybdenum tips, Appl. Phys. Lett. March (1997)
    46. W.B.Choi, J.Liu,  M.T.Mcclure, A.F.Myers, V.V.Zhirnov, J.J.Cuomo, and J.J.Hren : Field Emission from diamond Coated Molybdenum Field Emitters, J.Vac.Sci.Technol. B May/June, 2050, 1996
    47. W.B.Choi, J.J.Cuomo, V.V.Zhirnov, A.F.Myers and J.J.Hren : Field Emission from Silicon and Molybdenum Tips Coated with Diamond Powder by Dielectrophoresis, Appl. Phys. Lett. 68, 720 (1996)
    48. J.Liu, V.V.Zhirnov, A.F.Myers, G.J.Wojak, W.B.Choi, J.J.Hren, and J.T.Glass: Field Emission characteristics of diamond coated silicon field emitters, J. Vac. Sci. Technol. B 13(2), Mar/Apr pp422-426 1995
    49. V.V.Zhirnov, W.B.Choi, J.J.Cuomo and J.J.Hren : Diamond Coated Si and Mo Field Emitters : Diamond Thickness Effect, Appl. Surf.  Sci. 94/95,123 (1996)
    50. J.Liu, V.V.Zhirnov, G.Wojak, A.Myers, W.B.Choi, J.J.Hren, S.Wolter, M.T. McClure, B.Stoner and J.Glass : Electron Emission from Diamond Coated Silicon Field Emitters, Appl.Phys. 65(22), 1994
    51. A.F.Myers, W.B.Choi, M.T.McClure, J.J.Hren, E.Voelkl, B.Frost and L.F.Allard: Electron Microscopy of Diamond Coated Molybdenum Field Emission Cathode, Proc. Micro. and Microanaly. ed. G.W.Bailey et al, Jones and Begell Publ. pp440, 1995.
    52. Park, M.; Bergman, L.; Choi, W. B.; Sowers, A. T.; Nemanich, R. J.; Hren, J. J.; Cuomo, J. J.    Field emission from nitrogen-doped diamond film.  Materials Research Society Symposium Proceedings  (1998),  498(Covalently Bonded Disordered Thin-Film Materials),  239-244.  CODEN: MRSPDH  ISSN: 0272-9172.
    53. Choi, W. B.; Myers, A. F.; Ding, M. Q.; Sharma, A. K.; Narayan, J.; Hren, J. J.; Cuomo, J. J.  Electron emission through tetrahedral amorphous carbon coatings on molybdenum and silicon emitters. Materials Research Society Symposium Proceedings  (1998),  498 (Covalently Bonded Disordered Thin-Film Materials),  233-238.  CODEN: MRSPDH  ISSN: 0272-9172. 
    54. Myers, A. F.; Steel, E. B.; Ding, M. Q.; Camphausen, S. M.; Choi, W. B.; Cuomo, J. J.; Hren, J. J.    TEM and EELS investigation of a-C and ta-C coated field emitters.   Materials Research Society Symposium Proceedings  (1998),  498(Covalently Bonded Disordered Thin-Film Materials),  83-88.  CODEN: MRSPDH  ISSN: 0272-9172. 
    55. D.I.Cheong, E.S.Kang, W.B.Choi, Y.K.Baek : Effect of Starting Crystallographic Phase on the Mechanical Properties of Hot-Pressed SiC Ceramics, J.of the Korean Ceramic Society, Vol.2929, No.3, pp232-240, 1992
    56. W.B.Choi, H.S.Kim: The Effect of Oxide on the Precipitation Behaviors of AL-SiCw Composites, J. of the Korean Inst. of Metals, Vol.30,No.6, pp691-697, 1992
    57. H.S.Cho, S.D.Kim, H.J.Cho, W.B.Choi, Y.K.Baek and H.J.Kim: Fabrication and Characterization of Carbon Fiber Reinforced Glass Composites, J. of the Korean Ceramic Society, vol.29, No.8 pp601-608, 1992
    58. Y.H.Kim, S. H. Lee, D.I.K, W.B.Choi: Compression Fatigue Crack Initiation and Growth of a 2124 Al-SiCw Composite, J. of the Korean Inst. of Metal., vol.30 No5, pp516 1992
    59. Y.K.Baek, E.S.Kang, D.I.Cheong, W.B.Choi: Effect of Grain Size of the Ballistic Performance of Alumina Ceramics, J. of the Korean Ceramic Society, vol29, No4 pp312 1992
    60. S.H.Lee, K.M.Cho, K.H.Kim and W.B.Choi: Adiabatic Shear Band Formation in Al-SiCw Composites, Metall. Trans. A,Vol.24A,Apr.,pp895-900, 1993

     

    Publications in Conference Proceedings
    1. Thickness modulated large scale MoS2 atomic layers for transparent and flexible electronic devices, Juhong Park, Nitin Choudhary, and Wonbong Choi, US-Korea conference (UKC) 2016
    2. Wafer scale MoS2 atomic layers for transparent and flexible electronic devices, Juhong Park, Nitin Choudhary, Jesse Smith, and Wonbong Choi, Pacific Rim International Conference on Advanced Materials and Processing (PRICM9, Japan) 2016
    3. Thickness Determination of Large Scale MoS2 Nanosheets with Optical Microscopy, Juhong Park, Nitin Choudhary, Jesse Smith, Wonbong Choi MRS Fall 2015 (Boston-Massachusetts)
    4. Imaging of Heat Distribution in Graphene by Nanoscale Thermal Probe, Eunho Cha, Sookhyun Hwang, and Wonbong Choi, MRS Fall 2015 (Boston-Massachusetts)
    5. 3D Free-Standing Carbon Nanotubes for Flexible Li-Ion Battery Anode, Eunho Cha, Chiwon Kang, Rangasmy Baskaran, and Wonbong Choi, MRS Fall 2015 (Boston-Massachusetts)
    6. Wafer Scale MoS2 Atomic Layers For Transparent and Flexible Electronic Devices, Juhong Park, Nitin Choudhary, Jesse Smith, Jun Yeon Hwang, Wonbong Choi, MRS Fall 2015 (Boston-Massachusetts)
    7. Strategically Designed 3-Dimensional Anode Stack Based on Carbon Nanotubes for True Performance of Li-Ion Batteries, Chiwon Kang , Mumukshu Patel , Baskaran Rangasamy, Kyu-Nam Jung, Changlei Xia , Sheldon Shi , Wonbong Choi, MRS Fall 2015 (Boston-Massachusetts)
    8. Directly Deposited  MoS2 thin film electrodes  for high performance supercapacitors, Mumukshu Patel, Nitin Choudhary, Yee-Hsien Ho, Narendra B. Dahotre, Wonki Lee, Jun Yeon Hwang and Wonbong Choi, MRS Fall 2015 (Boston-Massachusetts)
    9. 3-Dimensional carbon nanotube-graphene structure for flexible Li-ion battery, Kang, C.W., Baskaran, R., Mumukshu, P., Choi, W.B., Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech  3 , pp. 414 (2014)
    10. Novel graphene FETs with field-controlling electrodes to improve RF performance, Al-Amin, C., Sinha, R., Pala, N., Choi, W.,  Proceedings of SPIE - The International Society for Optical Engineering 9083 (2014)
    11. W. Choi*, Chiwon Kang, S. Das*, P. Sudhagar , Y. Kang , “3D Graphene-Carbon Nanotube Hybrid Structure for High Efficiency Energy Application”, 19th ICCM, 2013 Conference Proceedings
    12. 3 dimensional carbon nanostructures for Li-ion battery anode, Kang, C., Baskaran, R., Kim, W.-G., Sun, Y.-K., Choi, W., Materials Research Society Symposium Proceedings 1505 , pp. 205 (2013)
    13. Wonbong Choi*, Indranil Lahiri*, “Novel design considerations for high efficiency carbon nanotube field emitters”, IVNC 2012 Conference Proceedings
    14. 3D multiwall carbon nanotubes (MWCNTs) for Li-ion battery anode, Kang, C., Lahiri, I., Baskaran, R., Choi, M., Kim, W.-G., Sun, Y.-K., Choi, W., TMS Annual Meeting 2 , pp. 35 (2012)
    15. Raman spectroscopy of graphene and plasma treated graphene under high pressure, Hadjikhani, A., Chen, J., Das, S., Choi, W., TMS Annual Meeting 2 , pp. 75 (2012)
    16. Carbon Nanomaterials - The Route Toward Applications in Energy, W. Choi 1, I. Lahiri , S. Das , M. Choi , P. Sudhagar , Y. Sun , Y. Kang, 18th International Conference on composite materials, Jeju Korea (2011)
    17. Santanu Das, Indranil Lahiri, Chiwon Kang, Wonbong Choi: Engineering Carbon Nanomaterials for Future Applications: Energy and Bio-sensor: Proceedings of The International Society for Optics and Photonics (SPIE) 25 - 29 April 2011, Orlando, Florida, USA (2011)
    18. Phani K. Vabbina, Sai S. Penagamuri, Santanu Das, Nezih Pala, Wonbong Choi, Synthesis of Crystalline ZnO Nanoflakes on Graphene and Other Substrates at Ambient Conditions, Accepted for Materials Research Society Symposium Proceeding 2012 1449 : mrss12-1449-bb09-15.
    19. Ali Hadjikhani, Jiuhua Chen, Santanu Das, Wonbong Choi, Raman Spectroscopy of Graphene and Plasma Treated Graphene under High Pressure, Symposium: 2012 Functional and Structural Nanomaterials, CPUE: TMS 2012 Conference Proceedings, Accepted.
    20. A. Abbas,  M. Karabiyik,  C. Al-Amin,  S. Das,  N. Pala,  W. Choi, Graphene Based Field-Effect Transistor Structures for Terahertz Applications, Accepted Terahertz Physics, Devices, and Systems VI: Advance Applications in Industry and Defense, Accepted for The Proceedings of The International Society for Optics and Photonics (SPIE) 23 - 27 April 2012 Baltimore, Maryland United States 2012.
    21. Mustafa Karabiyik, Ahmad N. Abbas, Chowdhury Al-Amin, Santanu Das, Nezih Pala, Won Bong Choi, SUB-WAVELENGTH MULTIMODE TUNABLE PLASMONIC TERAHERTZ LENSES AND DETECTORS,  Advance Applications in Industry and Defense, The Proceedings of The International Society for Optics and Photonics (SPIE) 23 - 27 April 2012
    22. Ved P. Verma, Santanu Das, Indranil Lahiri, Wonbong Choi, Large Area Graphene on Polymer Films for Transparent and Flexible Field Emission Device: MRS Symposium Proceedings, 29-3rd December 2010,  Boston, MA, USA: MRS Proceedings 2011 1283 : mrsf10-1283-b08-03 (7 pages) DOI: 10.1557/opl.2011.801 
    23. Indranil Lahiri, Raghunandan Seelaboyina, Won Bong Choi, Field Emission Response from Multiwall Carbon Nanotubes Grown on Different Metallic Substrates, MRS Fall 2009 Symposium Proceedings
    24. Jun Huang, WonBong Choi, Controlled growth and electrical characterization of bent single-walled carbon nanotubes, vol. 3, 418-420 NSTI Proceedings (Green Tech conference , Texas 2009)
    25. Harindra Vedala, Somenath Roy, Tae Hyun Kim, Wonbong Choi, NSTI 2008, Carbon nanotube interfaces for single molecular level bio sensing
    26. J. Huang, B. K. Rao, H. Vedala, D. H. Kim, M. Jeon, W. Park, and W. B. Choi, Mater. Res. Soc. Symp. Proc. Vol. 963, 0963-Q10-51 (2007), Controlled Carbon Nanotube Networks and its Corresponding Channel Effect at High Bias.
    27. Ved Prakash Verma, Do-Hyun Kim, Minhyon Jeon and Wonbong Choi, Fabrication and properties of Low doped Gallium-Zinc Oxide Thin film Transistor, Mater. Res. Soc. Symp. Proc. Vol. 963, 0963-Q12-01 (2007)
    28. Selective Detection of Cholesterol using Carbon Nanotube Based Biochip, Somenath Roy, Harindra Vedala, and Wonbong Choi, Mater. Res. Soc. Symp. Proc. Vol. 900E (2006),  0900-O09-02.1
    29. Narasimha Harindra Vedala, Young C. Choi, X.Y.Zhou, Gene Kim, WonBong Choi, “Polymer Functionalized Carbon Nanotubes for Sensor Application”, (Mater. Res. Soc. Symp. Proc. Vol. 858E, 2005 Materials Research Society), HH13.22.1
    30. “Synthesis and field emission properties of thin multiwall carbon nanotubes”, Raghunandan Seelaboyina, Young Chul Choi, , Jun Huang, Surendra Saxena, Wonbong Choi, SMEC 2005, Miami FL
    31. H. Vedala, Y. Choi, W. Choi, “Polymer Functionalized Carbon Nanotubes for Sensor Applications”, MRS Fall 2004, Boston, MA
    32. Y. Choi, E. Lee, H. Vedala, W. Choi, “Growth and Characterization of carbon nanotubes with various structures”, 148-149 Conference Proceedings, IEEE-NDSI, 2004, Miami, FL
    33. W. Choi, W. Park, J. Lee, “Application of carbon nanotube for nanoelectronics”, 151-152 Conference Proceedings, IEEE-NDSI, 2004, Miami, FL
    34. Kang, J. H.; Choi, Y. S.; Choi, W. B.; Lee, N. S.; Park, Y. J.; Choi, J. H.; Kim, H. Y.; Lee, Y. J.; Chung, D. S.; Jin, Y. W.; You, J. H.; Jo, S. H.; Jung, J. E.; Kim, J. M., “Under-gate triode type field emission displays with carbon nanotube emitters”. Materials Research Society (2001), 621 (Electron-Emissive Materials, Vacuum Microelectronics and Flat-Panel Displays), R5.2.1-R5.2.5. CODEN: MRSPDH ISSN: 0272-9172.
    35. Kim, H. Y.; Choi, W. B.; Lee, N. S.; Chung, D. S.; Kang, J. H.; Han, I. T.; Kim, J. M.; Moon, M. H.; Kim, J. S. Purification and characterization of single-walled carbon nanotubes. Materials Research Society (2000), 593 (Amorphous and Nanostructured Carbon), 123-127. CODEN: MRSPDH ISSN: 0272-9172.
    36. W. Choi, W. Park, E. Bae, D. kang, E. Lee, B. Cheong, J. Ko, “Carbon nanotube for nanoelectronics”, IEEE-Nano 2003, August 12-14 2003 SanFrancisco, CA
    37. 2003 U.S-Korea Conference on Science, Technology, and Entrepreneurship, “Carbon nanotubes for nanoelectronics”
    38. “Surface Modification of Carbon Nanotubes Using Poly (Vinyl Alcohol) For Sensor Applications”, H. Vedala, E. Lee, Y. Choi, G. Kim, W. Choi, LACCEIC June 2004
    39. “Characterization of various carbon nanomaterials synthesized by chemical vapor deposition”, Y. Choi and W. Choi, LACCEIC June 2004
    40. "Pyroelectric emission for lithography", C. W. Moon, W. B. Choi, E. Bae, Dong-Wook Kim, and In. K. Yoo, , '01 Materials Research Society Fall Meeting, Nov. 28 - Dec. 2, 2001, Boston, USA
    41. J.H. Kang, Y.S. Choi, W.B. Choi, N.S. Lee, Y.J. Park, J.H. Choi, H.Y. Kim, Y.J. Lee, D.S. Chung, Y.W. Jin, J.H. You, S.H. Jo, J.E. Jung, and J.M. Kim, "Under-Gate Triode Type Field Emission Displays With Carbon Nanotube Emitters R5.2" , 2000 MRS Spring meeting, (San Francisco, USA, 2000. 4).
    42. N. S. Lee, J. H. Kang, W. B. Choi, Y. S. Choi, Y. J. Park, H. Y. Kim, Y. J. Lee, D. S. Chung, J. E. Jung, C. J. Lee, J. H. Kim, J. H. You, S. H. Jo, C. G. Lee, and J. M. Kim, "Triode Structure Field Emission Displays using Carbon Nanotube Emitters," Technical Digest of 13th International Vacuum Microelectronics Conference(IVMC), pp. 193-194, Aug., 2000.
    43. J.M. Kim, W.B. Choi, N. S. Lee, The 2nd SID Korea Seminar of 1999, 127
    44. W.B. Choi, D.S. Chung, S.S. Hong, H.Y. Kim, J.H. Kang, J.E. Jung, and J.M. Kim, “Carbon nanotube-based field emission displays”, Technical digest of IVMC’99, 310 July (1999).
    45. D.S. Chung, W.B. Choi, H.Y. Kim, J.H. Kang, Y.H. Lee, N.S. Lee, and J.M. Kim, “Field emission from well distributed muti-wall carbon nanotube films”, Technical digest of IVMC’99, 312 July (1999).
    46. Y.C. Ko, SeGi Yu, W.B. Choi, D. Jeon, N.S. Lee, H.W. Lee, and J.M. Kim, “Field emission beam projection using electrostatic aperture lens”, Technical digest of IVMC’99, 134 July (1999).
    47. Y. C. Choi, W. S. Kim, S. M. Lee, D. J. Bae, Y. H. Lee, G. -S. Park, W. B. Choi, N. S. Lee, and J. M. Kim, "Structural and optical properties of β-Ga2O3 nanowires synthesized by arc-discharge", 10th Seoul International Symposium on Physics of Semiconductors and Applications, November 1-3, 2000, Cheju Grand Hotel, Cheju, Korea
    48. Y. C. Choi, Y. M. Shin, S. J. Ihm, D. J. Bae, Y. H. Lee, B. S. Lee, G. S. Park, W. B. Choi, N. S. Lee, and J. M. Kim, "Control of morphologies and structures of vertically aligned carbon nanotubes", International Conference on Science and Technology of Synthetic Metals, July 15-22, 2000, Congress center, Gastein, Austria.
    49. Y. C. Choi, D. J. Bae, Y. H. Lee, K. -S. Park, W. B. Choi, N. S. Lee, and J. M. Kim, "Arc discharge for the growth of Ga2O3 nanowires", MRS 99 Fall meeting, November 29 - December 3, 1999 Hynes Convention Center, Boston, USA
    50. Y. C. Choi, Y. S. Park, Y. H. Lee, W. B. Choi, N. S. Lee, J. M. Kim, C. J. Lee, D. W. Kim, and T. J. Lee, "Synthesis of carbon nanotubes and their application to field emission displays", 3rd Korea-China Joint Workshop on Advanced Materials, August 23-27, 1999, Cheju, Korea
    51. W.B. Choi, D.S. Chung, S.H. Park, and J.M. Kim, “A 4.5-inch Fully Sealed Carbon Nanotube-Based Field-Emission Flat-Panel Display, SID International Symposium Digest of Technical Papers, L2.1 1134 (1999).
    52. W.B. Choi, N.S. Lee, Y.H. Lee, and J. M. Kim, “Field emission from carbon nanotubes for displays”, (Journal of Advanced materials Research Institute) Kyungsang University 9, 39 (1999).
    53. W.B.Choi, D. Batchelor, M. Park, J.M. Kim, Y.S. Choi, J. Cuomo, J. Hren, Proceedings of the first Korea-Israel joint workshop on ultra-hard coating for machinery Materials, p 164 2nd July 1998
    54. W.B. Choi, A.F. Myers, J.J. Cuomo and J.J. Hren : Field emission through diamond/Mo interfaces, MRS conference Boston MA conference Proceeding, Fall 1996
    55. G.J. Wojak, V.V. Zhirnov, W.B. Choi, J.J. Cuomo, and J.J. Hren, “Interpretation of I-V Characteristics of Diamond Cold Cathodes”, Technical Digest of IVMC’97 146-150 (1997).
    56. V.V. Zhirnov, J. Liu, G. Wojak, W.B. Choi, J.J. Cuomo, and J.J. Hren, “Environmental effects on electron emission from a diamond surface”, Technical Digest of IVMC’97 504-508 (1997).
    57. W.B. Choi, M.Q. Ding, V.V. Zhirnov, A.F. Myers, J.J. Hren, and J.J. Cuomo, “Electron emission characteristics of a amorphous diamond coated field emitters”, Technical Digest of IVMC’97 504-508 (1997).
    58. M.Q. Ding, W.B. Choi, A.F. Myers, J.J. Cuomo, and J.J. Hren, “Room temperature diamond coatings for field emitters”, Technical Digest of IVMC’97 499-503 (1997).
    59. W.B. Choi, R. Schlesser, G. Wojak, J.J. Cuomo, Z. Sitar, and J.J. Hren, “Electron energy distribution of diamond coated field emitters”, Technical Digest of IVMC’97 499-503 (1997).
    60. G.J. Wojak, W.B. Choi, A.F. Myers, J.J. Cuomo, and J.J. Hren: Field emission from nitride and cubic nitride coatings, 9th IVMC'96, St. Petersburg, Russia (Technical digest pp 217-220)
    61. W.B. Choi, A.F.Myers, G.J.Wojak, M.T. McClure, J.J. Cuomo and J.J. Hren, 9th IVMC'96, St. Pertersburg, Russia (Technical digest pp288-292)
    62. Fabrication of full-color carbon-nanotubes field-emission displays: Large area, high brightness, and high stability. Choi, W. B.; Lee, Y. H.; Chung, D. S.; Lee, N. S.; Kim, J. M. , Science and Application of Nanotubes, [Proceedings of Nanotube '99, an International Conference], East Lansing, MI, United States, July 24-27, 1999, 355-364. Publisher: Kluwer Academic/Plenum Publishers, New York, N. Y CODEN: 69ASXC
    63. Kang, D. H.; Zhirnov, V. V.; Wojak, G.; Choi, W. B.; Hren, J. J.; Cuomo, J. J. Investigation of thickness effects on AlN coated metal tips by in situ I-V measurement, International Vacuum Microelectronics Conference, 11th, Asheville, N. C., July 19-24, 1998, 320-321.
    64. Park, M.; Choi, W. B.; McGregor, D. R.; Bergman, L.; Nemanich, R. J.; Hren, J. J.; Cuomo, J. J. Electron emission from etched diamond and its structural analysis. International Vacuum Microelectronics Conference, 11th, Asheville, N. C., July 19-24, 1998 (1998), 271-272. Publisher: Institute of Electrical and Electronics Engineers, New York, N. Y CODEN: 67IYAX
    65. Park, M.; Choi, W. B.; Schlesser, R.; Sowers, A. T.; Bergman, L.; Nemanich, R. J.; Sitar, Z.; Hren, J. J.; Cuomo, J. J. “The effect of substitutional nitrogen incorporation on electron emission from CVD diamond” International Vacuum Microelectronics Conference, 11th, Asheville, N. C., July 19-24 (1998), 269-270. Publisher: Institute of Electrical and Electronics Engineers, New York, N. Y CODEN: 67IYAX
    66. Choi, W. B.; Batchelor, D.; Park, M.; Kim, J.; Cuomo, J.; Hren, J. I-V characterization on diamond deposits by secondary electron microscopy. International Vacuum Microelectronics Conference, 11th, Asheville, N. C., July 19-24 (1998), 251-252. Publisher: Institute of Electrical and Electronics Engineers, New York, N. Y CODEN: 67IYAX
    67. Lee, S. W.; Han, I. T.; Lee, N.; Choi, W. B.; Kim, J. M.; Jeon, D. Department of Physics, Field emission characteristics of diamond films grown on glass substrates. International Vacuum Microelectronics Conference, 11th, Asheville, N. C., July 19-24, (1998), 218-219. Publisher: Institute of Electrical and Electronics Engineers, New York, N. Y CODEN: 67IYAX
    68. Choi, W. B.; Ding, M. Q.; Zhirnov, V. V.; Myers, A. F.; Hren, J. J.; Cuomo, J. J. Electron emission characteristics of a-diamond coated field emitters. International Vacuum Microelectronics Conference, Technical Digest, 10th, Kyongju, S. Korea, Aug. 17-21, (1997), 527-531. Publisher: Electronic Display Industrial Research Association of Korea, Seoul, S. Korea CODEN: 66KIAM
    69. Zhirnov, V. V.; Liu, J.; Wojak, G.; Choi, W. B.; Cuomo, J. J.; Hren, J. J. Environmental effects on electron emission from a diamond surface. International Vacuum Microelectronics Conference, Technical Digest, 10th, Kyongju, S. Korea, Aug. 17-21, (1997), 504-508. Publisher: Electronic Display Industrial Research Association of Korea, Seoul, S. Korea CODEN: 66KIAM
    70. Ding, M. Q.; Choi, W. B.; Myers, A. F.; Cuomo, J. J.; Hren, J. J. Room-temperature diamond coatings for field emitters. International Vacuum Microelectronics Conference, Technical Digest, 10th, Kyongju, S. Korea, Aug. 17-21, (1997), 499-503. Publisher: Electronic Display Industrial Research Association of Korea, Seoul, S. Korea CODEN: 66KIAM
    71. Choi, W. B.; Schlesser, R.; Wojak, G.; Cuomo, J. J.; Sitar, Z.; Hren, J. J. Electron energy distribution of diamond coated field emitters. International Vacuum Microelectronics Conference, Technical Digest, 10th, Kyongju, S. Korea, Aug. 17-21, (1997), 494-498. Publisher: Electronic Display Industrial Research Association of Korea, Seoul, S. Korea CODEN: 66KIAM
    72. Wojak, G. J.; Zhirnov, V. V.; Choi, W. B.; Cuomo, J. J.; Hren, J. J. Interpretation of I-V characteristics of diamond cold cathodes. International Vacuum Microelectronics Conference, Technical Digest, 10th, Kyongju, S. Korea, Aug. 17-21, 1997 (1997), 146-150. Publisher: Electronic Display Industrial Research Association of Korea, Seoul, S. Korea CODEN: 66KIAM
    73. Choi, W. B.; Liu, J.; McClure, M. T.; Myers, A. F.; Cuomo, J. J.; Hren, J. J. Field emission characteristics of diamond coated molybdenum field emitters. Technical Digest, International Vacuum Microelectronics Conference, 8th, Portland, Oreg., July 30-Aug. 3, 1995 (1995), 315-319.  Publisher: Institute of Electrical and Electronics Engineers, New York, N. Y CODEN: 63QEAJ
    74. Myers, A. F.; Liu, J.; Choi, W. B.; Wojak, G. J.; Hren, J. J. High resolution TEM study of diamond formation on silicon and molybdenum field emitter surfaces. Materials Research Society Symposium Proceedings (1995), 354(Beam-Solid Interactions for Materials Synthesis and Characterization), 449-54. CODEN: MRSPDH ISSN: 0272-9172.
    75. Cheong, D. I.; Kang, E. S.; Choi, W. B.; Baek, Y. K. Effect of starting crystallographic phase on the mechanical properties of hot-pressed SiC ceramics, Yoop Hakhoechi  (1992), 29(3), 232-40. CODEN: YPHJAP ISSN: 0372-7807.
    76. Cho, H. S.; Kim, S. D.; Cho, H. J.; Kong, S. S.; Choi, W. B.; Baek, Y. K.; Kim, H. J.; Kim, H. Fabrication and characterization of carbon fiber reinforced glass composites. Yoop Hakhoechi (1992), 29(8), 601-8. CODEN: YPHJAP ISSN: 0372-7807.

     

    Books
    1. Wonbong Choi and Jo-won Lee, Graphene: Synthesis and Applications, CRC Press ISBN-10: 1439861870 | ISBN-13: 978-1439861875 | Publication Date: October 11, 2011

     

    Book Chapters
    1. C.W. Kang, R. Baskaran, M.D. Patel, N. Choudhary, W.B. Choi, "3-Dimensional Carbon Nanotube-Graphene Structure for Flexible Li-ion Battery," Nanotech 2014 Vol. 3, Nanotechnology 2014: Electronics, Manufacturing, Environment, Energy & Water, Chapter 6: Energy Storage, pp. 414 - 417 (ISBN : 978-1-4822-5830-1). http://www.nsti.org/procs/Nanotech2014v3/6/T8.225
    2. Carbon Nanomaterials: A Review, Handbook of Nanomaterials properties, N. Choudhary, S. Hwang, W. B. Choi, Springer, pp. 709-769, ISBN: 978-3-642-31107-9 (2014)
    3. Graphene Synthesis and Applications, Handbook of Carbon Nano materials, N. Choudhary, W. B. Choi, World Scientific, Vol. 7, pp. 500, ISBN: 978-981-4678-90-2 (2015)
    4. Synthesis and Characterization of Graphene in Carbon Nanomaterials for Advanced Energy Systems,  Santanu Das, P. Sudhagar, YongSoo Kang and Wonbong Choi, Ed. Wen Lu, J. Beom, L. Dai, John Wiley
    5. Field emission and graphene: An overview of current status, In “Graphene: Synthesis and applications” Indranil Lahiri, Wonbong Choi, Ed. W. Choi, J.-W. Lee, CRC Press (Boca Raton, USA), August 2011 , ISBN: 9781439861875.
    6. Graphene and graphene based materials in solar cell application, In “Graphene: Synthesis and applications” Indranil Lahiri, Wonbong Choi, Ed. W. Choi, J.-W. Lee, CRC Press (Boca Raton, USA), August 2011, ISBN: 9781439861875.
    7. Santanu Das and Wonbong Choi, Graphene Synthesis, Graphene: Synthesis and Applications; Series: Nanomaterials and their Applications CRC Press, Published October 2011.
    8. Wonbong Choi, Ashutosh Tiwari, and Seung Kang, 2007 Nanomaterials: Fabrication, Properties & Applications, TMS Proceedings, ISBN: 978-0-87339-691-2, 2007
    9. Wonbong choi and Jowon Lee, Nanotechnology Global Strategies, Industry trends and Applications, ed. Jurgen Schulte “Current Status of Nanotechnology in Korea and Research into Carbon nanotubes”, Wiley 2005
    10. Won bong Choi and Young Hee Lee, “Carbon Nanotube and Its Application to Nanoelectronics”, Industrial Applications of Electron Micriscopy, edited by Zhigang Li, Publisher: Marcel Dekker, New York, NY, USA, (2002), Total pages: 614 Chapter 14, "Carbon nanotube and its application to nanoelectronics", Page 387-399.
    11. W. B. Choi, Y. H. Lee, D. S. Chung, N. S. Lee, and J. M. Kim,“Fabrication of full-color carbon-nanotubes field emission displays:Large area, high brightness, and high stability”, in 'Science and Applications of Nanotubes", edited by D. Tomanek and R. J. Enbody, p. 355, Kluwer Academic Publishing/Plenum Press, (2000).
  • Professional Experience
    • July 2012 – Present  Professor, University of North Texas
    • Aug. 2011 – July 2012  Professor, Florida International University
    • Jan. 2008 – Dec. 2012  WCU Professor, Energy Engineering Dept., Hanyang University
    • June 2003 – July 2011  Associate Professor, Florida International University (Tenured)
    • March 1998 – June 2003  Senior Researcher & Project Manager, Samsung SAIT, Korea
    • March 1997 – March 1998  Post Doctoral Researcher
    • Feb. 1988 – July 1993  Research Scientist, Agency for Defense Development, Korea
  • Patents
    International Patents
    1. Micro-Supercapacitor based on two-dimensional materials, Wonbong Choi, 04192016, Patent Application Serial No. 62/319,329
    2. LARGE SCALE AND THICKNESS-MODULATED MoS2 NANOSHEETS Wonbong Choi, Nitin Choudhary, 09292015, Application number US 14/868,428,  US 20160093491 A1
    3. W. Choi, I. Lahiri, C. Kang, High efficiency lithium ion battery anode based on 2- and 3-dimensional carbon nanotube-metal/alloy substrates, US Provisional Patent Appl. No. 61567979 (Filed on December 7, 2011).
    4. Choi, W.B., Cho, S.J. & Lahiri, I., High efficiency lithium ion battery anode using interface-controlled binder-free carbon nanotubes grown on metal/alloy substrates, US Patent Appl. No. 61/222,481 (2009)
    5. “MultiSensor Biochip for point-of-care clinical diagnosis” (US Patent filed), FIU (2005)
    6. “Nanoscale DNA Detection System Using Species- and Disease-Specific Probes for Rapid Identification” US Patent US8,597,492 B2 (Dec.3, 2013)
    7. “Miniaturized energy-efficient plasma generator”, Wonbong Choi, FIU (2004)
    8. “Method of synthesizing Y-junction single-walled carbon nanotubes and products formed thereby”, Y. Choi and W. Choi, FIU (2004)
    9. USA, '009,145 (12/13/2004), “Vertical carbon nanotube-field effect transistor and method of manufacturing the same”.
    10. CHINA, 200410034828.5 (4/15/2004), “Method of forming conductive line for semiconductor device using carbon nanotube and semiconductor device manufactured using the method”.
    11. JAPAN, 2004-137261 (5/6/2004), “Method of forming conductive line for semiconductor device using carbon nanotube and semiconductor device manufactured using the method”.
    12. USA, 835,044 (4/30/2004), “Method of forming conductive line for semiconductor device using carbon nanotube and semiconductor device manufactured using the method”
    13. EUROPE, 04252117.9 (4/8/2004), “Method of forming conductive line for semiconductor device using carbon nanotube and semiconductor device manufactured using the method”.
    14. CANADA, 03136336.9 (5/29/2003), “Memory device utilizing vertical nanotubes”.
    15. EUROPE, 03013966.1 (6/20/2003), “Memory device utilizing vertical nanotubes”.
    16. JAPAN, 2003-401458 (12/1/2003), “Memory device utilizing vertical nanotubes”.
    17. USA, 747,438 (12/30/2003), “Memory device utilizing vertical nanotubes”.
    18. CANADA, 200310113815.2 (11/4/2003), “Nonvolatile memory device utilising vertical nanotube”.
    19. EUROPE, 03257104.4 (11/11/2003), “Nonvolatile memory device utilising vertical nanotube”.
    20. JAPAN, 2003-384459 (11/14/2003), “Nonvolatile memory device utilising vertical nanotube”.
    21. USA, 713,214 (11/17/2003), 6,930,343 (8/16/2005) “Nonvolatile memory device utilising vertical nanotube”.
    22. USA, 601,872 (6/24/2003), “Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same”.
    23. JAPAN, 2003-281779 (7/29/2003), 3705795 (8/5/2005) “Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same”.
    24. CANADA, 03145137.3 (6/23/2003) “Carbon nanotubes for fuel cells, method for manufacturing the same, and fuel cell using the same”.
    25. CANADA, 03107258.5 (3/19/2003) “Method of manufacturing inorganic nanotube”.
    26. JAPAN, 2003-174325 (6/19/2003) “Method of manufacturing inorganic nanotube”.
    27. USA, 464,860 (6/19/2003) “Method of manufacturing inorganic nanotube”.
    28. EUROPE, 03251320.2 (3/5/2003) “Method of manufacturing inorganic nanotube”.
    29. CANADA, 03145424.0 (5/3/2003) “Semiconductor carbon nanotubes fabricated by hydrogen functionalization and method for fabricating the same”.
    30. EUROPE, 03252763.2 (5/1/2003) “Semiconductor carbon nanotubes fabricated by hydrogen functionalization and method for fabricating the same”.
    31. USA, 428,835 (5/5/2003) “Semiconductor carbon nanotubes fabricated by hydrogen functionalization and method for fabricating the same”.
    32. JAPAN, 2003-0126118 (5/1/2003) “Semiconductor carbon nanotubes fabricated by hydrogen functionalization and method for fabricating the same”.
    33. CANADA, 03128592.9 (2/9/2003) “Memory device utilizing carbon nanotubes and method of fabricating the memory device”.
    34. EUROPE, 03250805.3 (2/7/2003) “Memory device utilizing carbon nanotubes and method of fabricating the memory device”.
    35. USA, 361,024 (2/10/2003) “Memory device utilizing carbon nanotubes and method of fabricating the memory device”.
    36. JAPAN, 2003-0030273 (2/7/2003) “Memory device utilizing carbon nanotubes and method of fabricating the memory device”.
    37. JAPAN, 2003-30522 (2/7/2003) “Memory device with quantum dot and method for manufacturing the same”.
    38. USA, 225,431(8/22/2002) “Memory device with quantum dot and method for manufacturing the same”.
    39. CANADA, 02130478.5 (8/21/2002) “Memory device with quantum dot and method for manufacturing the same”.
    40. EUROPE, 02255824.1 (8/21/2002) “Memory device with quantum dot and method for manufacturing the same”.
    41. USA, 225,431 (9/27/2004) “Memory device with quantum dot and method for manufacturing the same”.
    42. USA, 138,691 (5/27/2005) “Memory device with quantum dot and method for manufacturing the same”.
    43. USA, 255,198 (9/25/2002) “Biochip including carbon nanotubes and method for sample separation using the same”.
    44. EUROPE, 02021881.4 (9/30/2002) “Biochip including carbon nanotubes and method for sample separation using the same”.
    45. JAPAN, 2002-370793 (12/20/2002) “Biochip including carbon nanotubes and method for sample separation using the same”.
    46. CANADA, 02143346.1 (9/26/2002) “Biochip including carbon nanotubes and method for sample separation using the same”.
    47. USA, 252,085 (9/23/2002) “High density data recording/erproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system”.
    48. JAPAN, 2002-270422 (9/17/2002) “High density data recording/erproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system”.
    49. CANADA, 02129754.1 (8/13/2002) “High density data recording/erproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system”.
    50. EUROPE, 02255382.0 (8/1/2002) “High density data recording/erproduction method utilizing electron emission and phase change media, and data recording system adopting the same, and media for the system”.
    51. USA, 090,629 (3/6/2002) “High-density information storage apparatus using electron emission and methods of writing, reading and erasing information using same”.
    52. JAPAN, 2002-103767 (4/5/2002) “High-density information storage apparatus using electron emission and methods of writing, reading and erasing information using same”.
    53. CANADA, “High-density information storage apparatus using electron emission and methods of writing, reading and erasing information using same”.
    54. EUROPE, “High-density information storage apparatus using electron emission and methods of writing, reading and erasing information using same”.
    55. WO, PCT/KR02/01544 (8/13/2002) “Sensor for detecting biomolecule using carbon nanotubes”.
    56. USA, 240,227 (9/27/2002) “Sensor for detecting biomolecule using carbon nanotubes”.
    57. USA, 160,102 (6/4/2002) 6,794,666 (9/21/2004) “Electron emission lithography apparatus and method using selectively grown carbon nanotube”.
    58. JAPAN, 2002-162592 (6/4/2002) “Electron emission lithography apparatus and method using selectively grown carbon nanotube”.
    59. CANADA, 02144390.4 (6/4/2002), ZL02411390.4 (3/16/2005) “Electron emission lithography apparatus and method using selectively grown carbon nanotube”.
    60. USA, 891,240 (6/27/2001), 6,566,704 (5/20/2003) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    61. CANADA, 01122021.X (6/22/2001), ZL01122021.X (3/16/2005) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    62. JAPAN, 2001-192414 (6/26/2001) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    63. USA, 386,536 (3/13/2003), 6,833,567 (12/21/2004) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    64. USA, 387,561 (3/14/2003), 6,855,641 (2/15/2005) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    65. USA, 388,450 (3/17/2003), 6,815,294 (11/9/2004) “Vertical nano-size transistor using carbon nanotubes and manufacturing method thereof”.
    66. CANADA, 1111250.6 (3/12/2001), 01111250.6 (1/19/2005) “Field emission array with carbon nanutubes and method for fabricating the field emission array”.
    67. Great Britain, 106005.2 (3/12/2001), 2361805 (9/29/2004) “Field emission array with carbon nanutubes and method for fabricating the field emission array”.
    68. JAPAN, 2001-124604 (4/23/2001) “Field emission array with carbon nanotubes and method for fabricating the field emission array”.
    69. USA, 837,225 (4/19/2001), 6,642,639 (11/4/2003) “Field emission array with carbon nanotubes and method for fabricating the field emission array”.
    70. USA, 658,526 (9/10/2003) “Field emission array with carbon nanotubes and method for fabricating the field emission array”.
    71. EUROPE, 1302389 (3/15/2001) “Method of vertically aligning carbon nanotubes on substrates at low pressure and low pressure using thermal chemical vapoor deposition with DC bias”.
    72. JAPAN, 2001-73546 (3/15/2001) “Method of vertically aligning carbon nanotubes on substrates at low pressure and low pressure using thermal chemical vapoor deposition with DC bias”.
    73. USA, 808,011 (3/15/2001), 6,673,392 (1/6/2004) “Method of vertically aligning carbon nanotubes on substrates at low pressure and low pressure using thermal chemical vapour deposition with DC bias”.
    74. EUROPE, 303448.5 (4/25/2000) “Secondary electron amplification structure employing carbon nanotube, and plasma display panel and back light using the same”.
    75. USA, 562,891 (5/1/2000), 6,346,775 (2/12/2002) “Secondary electron amplification structure employing carbon nanotube, and plasma display panel and back light using the same”.
    76. JAPAN, 2000-334120 (11/1/2000) “Secondary electron amplification structure employing carbon nanotube, and plasma display panel and back light using the same”.
    77. DE, 10020383.3 (4/26/2000) “Method of manufacturing carbon nanotube field emitter by electrophoretic deposition”.
    78. JAPAN, 2000-239544 (8/8/2000) “Method of manufacturing carbon nanotube field emitter by electrophoretic deposition”.
    79. USA, 603,201 (6/26/2000), 6,616,497 (9/9/2003) “Method of manufacturing carbon nanotube field emitter by electrophoretic deposition”.
    80. Great Britain, 10071.9 (4/25/2000) “Method of manufacturing carbon nanotube field emitter by electrophoretic deposition”.
    81. USA, 570,403 (5/12/2000), 6,440,761 (8/27/2002) “Carbon nanotube field emission array and method for fabricating the same”.
    82. USA, 191,492 (7/10/2002) “Carbon nanotube field emission array and method for fabricating the same”.

     

    Korean Domestic Patents
    1. Y. H. Lee, W. B. Choi, 'Fabrication of a semiconducting carbon nanotube by hydrogen functionalization'  (수소 기능화에 대한 반도체 탄소나노튜브 및 그 제조방법), application number: 2002-0024476, 2002.05.03.
    2. W. B. Choi, Y. H. Lee, J. W. Lee, 'Vertical nanosize transistor using carbon nanotubes and manufactoring method thereof', application number: 10-2000-35702, 2000.06.27.
    3. Y. H. Lee, W. B. Choi, J. W. Lee, 'Design of CNT-transistor vertically grown using a nanomask by chemical vapor deposition', application number: 10-2000-35703, 2000.06.27.
    4. Y. H. Lee, K. H. An, and J. E. Yu, 'Supercapacitor using electrode of new material', application number: 00-19232, 2000.04.12.
    5. Y. H. Lee, Y. C. Choi, B. S. Lee, W. B. Choi, N. S. Lee, J. M. Kim, 'Growth method for vertically aligned carbon nanotubes by changing morphologies of transition metal thin films', 2000.06, application number: 00-25333.
    6. Y. H. Lee, J. M. Kim, N. S. Lee, and W. B. Choi, 'Method of larger area, vertically aligned carbon nanotubes on substrates at low temperature and low pressure using TCVD', 2000.03.15, application number: 00-13039.
    7. W.B. Choi, "Growth method for vertically aligned carbon nanotubes by changing morphologies of transition metal thin films", application number: 00-25333.
    8. W.B. Choi, P2000-0035702 나노마스크를 이용해 화학기상증착법으로 성장된 수직형~
    9. W.B. Choi, P1998-00399  전기영동법에 의한 field emitter의 초미세 다이아몬드 분말 
    10. W.B. Choi, P2000-003570 탄소나노튜브를 이용한 나노크기의 수직 transistor 구조 
    11. W.B. Choi, P2000-003570 나노마스크를 이용해 화학기상증착법으로 성장된 수직형 
    12. W.B. Choi, P2000-000564  CNT를 이용한 FED 
    13. W.B. Choi, USP 837,255, RX-200003-014-1-US 절연성기판을 이용한 삼극관 탄소나노튜브 필드에미션 디바이스
    14. W.B.Choi, P2001-0001351 탄소나노튜브를 이용한 MRAM 및 그 제조방법
    15. W.B. Choi, P2000-0025333 전이금속 박막형상 조절에 의한 대면적, 수직 성장된 탄소나노튜브,
    16. W. B. Choi, P1999-00331 전기영동법을 이용한 carbon nanotube의 선택증착 및 Field
    17. W. B. Choi, RX-199908-012-1,  P2000-000564  CNT를 이용한 DEVICE
    18. W. B. Choi, P1999-001865 카본 나노 튜부를 이용한 필드에미션 어레이 제조 
    19. W. B. Choi, P1998-00295,  Spindt형 비정질탄소 전자방출원 제조방법 
    20. W. B. Choi, P1998-00548, Spindt형 tip과 Schottky 접합특성을 갖는 비정질탄소막의 코팅 
    21. W. B. Choi, P20010049033,  탄소나노튜브를 이용한 고용량의 바이오분자 검출센서 
    22. W. B. Choi, '2002-0071398 (5/1/2003), 수직 탄소나노튜브 메모리 소자
    23. W.  B. Choi, 2002-0071041 (11/15/2002), 수직 나노튜브를 이용한 비휘발성 메모리 소자
  • Honors and Awards

    February 2018: Our team reported high efficiency Li-S batteries based on 2D MoS2 atomic layer protective layer for Li-metal in Nature Nanotechnology https://www.nature.com/articles/s41565-018-0061-y (https://engineering.unt.edu/news/researchers-create-lithium-ion-replacement)

    February 2018: Sarah Zou (TAMS student) has been named semifinals in the 2018 Regeneron Science Talent Search https://research.unt.edu/article/national-regeneron-science-talent-search?utm_source=UNTResearchNewsletter-Jan2018

    December 2017: Our team reported Synthesis of uniform single layer WS2 for tunable photoluminescence that could lead to next-generation, ultra-thin opto-electronic devices (Scientific Report (Nature) ) ) https://www.nature.com/articles/s41598-017-16251-2 (https://research.unt.edu/material-could-lead-next-generation-ultra-thin-electronic-devices?utm_source=UNTResearchNewsletter-Jan2018

    December 2013- Santanu Das has won the 2013 MRS Fall meeting poster Award for the poster titled, "Measurement of Graphene Substrates Adhesion Energy Using Nano-Scratch Study".  

    2012: Graphene Book has Published (ISBN: 978-1-4398-6187-5, CRC Press) Graphene, one-atom-thick planar sheet of carbon atoms densely packed in a honeycomb crystal lattice, has revolutionized the scientific frontiers in nanoscience and condensed matter physics due to its exceptional electrical, physical and chemical properties. Expected as a possible replacement for silicon in electronics and applications in many other advanced technology, graphene has brought enormous interest of many research groups around the world resulting in abruptly high number of publications and recently in Noble Prize in Physics. This book, edited by Prof. Wonbong Choi and Dr, Jo-won Lee, aims to present an overview of the advancement of research in graphene, in the area of synthesis, properties and applications, such as electronics, heat dissipation, field emission, sensors, composite and energy. Eleven chapters have been presented by experts from each research area.

    Material Research Society (MRS) Fellow; selected for recognition with the distinguished title of MRS Fellow (the youngest MRS Fellow) 2009

    MRS Medal (2006) “for important developments in the material science and applications of carbon nanotubes”

    • The Best Paper of the Year, SAMSUNG (SAIT), 2002
    • The Best Patent of the Year 2001, SAMSUNG (SAIT), 2002
    • Gold Technology Award, SAMSUNG (for carbon nanotube field emission display development), 1998
    • Gold Technology Award , Agency for Defense and Development, Government of Korea (for special ceramic composites development), 1993
    • Distinguished Research Award, Executive Dean’s Award, Florida International University, 2006
    • Recognition of outstanding lecture on Trends in Emerging Technologies and Education, Florida International University, Fall 2004
    • Featured Article on Materials360 Online (2016), http://www.materials360online.com/newsDetails/61817,  “Two new methods reported for growing MoS2 on a large scale”
    • Dr. Choi’s work were highlighted in: Science (1999), TRN News (January 2002), MIT’s Magazine (June 2003), Analytical Chemistry (2006), Nanowerk (2007), Nature Nanotechnology (2008), TMS (2011)
    • Editor-in-chief: Nanoscience and Nanotechnology: An International Journal (NST) 2016-
    • Topical Editor of Current Applied Physics (Elsevier), 2011-2013
    • International Advisory Board, International Symposium in Nanotechnology in Environmental Protection and pollution, (ISNEPP 2007), December 10-12 2007
    • Editorial Board of Science of Advanced Materials Journal; Materials Science Research (IOS Publishing); Recent Patents on Nanotechnology, BENTHAM SCIENCE PUBLISHERS LTD; The Open Nanoscience Journal , BENTHAM SCIENCE PUBLISHERS
    • Chair of the TMS meeting Nanomaterials Symposium, 2007 and 2008; Chair of the NSF US-Korea Micro and Nano Integrated Complex Systems Workshop, October 2005    
    • Chair, Symposium of Beyond graphene-2D Materials and applications, Fall 2015 MRS Meeting
    • Organizing Committee of NanoKorea 2012
    • Organizing Committee (Lead organizer in electronic materials), 9th Pacific Rim International Conference on Advanced Materials and Processing (PRICM9), 2015-2016
  • Groups