Kim, Cihyun (C.H.Kim)

Current Course :

E-mail Address :

Phone Number :

Ph. D. Course

cihyun@gist.ac.kr

82-62-715-2347

Research Interest

Graphene-based optoelectronics

Education

Since 2016 : Ph.D., School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST)
2014 – 2016 : M.S., School of Information and Communications, Gwangju Institute of Science and Technology (GIST)
2010 – 2014 : B.S., Department of Electrical Engineering, Ajou University

Publication

Journals

5	S.W.Heo, M.G. Jwon, C.H. Kim, S.M. Kim, Y.S. Lee, K.E. Chang and B.H. Lee*, "Tunable AC/DC converter using graphene-germanium barristor,” Submitted to IEEE Electron Device Letters (2019).
4	L. Lee, J.W. Hwang, J.W. Jung, J.C. Kim, H.I. Lee, S.W.Heo, M.H. Yoon, S.Ju. Choi, N.V.Long, J.S. Park, J.W. Jeong, J. Kim, K.R. Kim, D.H.Kim, S.I. Im, B.H.Lee, K.J.Cho, M.M. Sung, "ZnO Composite nanolayer with mobility edge quantization for multi-value logic transistors," on-line published, Nature communications (2019).
3	K.E.Chang, C.H.Kim, T.J.Yoo, M.K.Kwon, B.H. Lee, “ High responsivity near infrared photodetector using gate modulated graphene/germanium Schottky photodetector,” in press, Advanced Electronic Materials*, (2019).
2	K.E. Chang, T.J. Yoo, C.H. Kim, Y.J. Kim, S.K. Lee, S.Y. Kim, S.W.Heo, M.G. Kwon, B.H. Lee, “Gate controlled graphene-silicon Schottky junction photodetector," Small* 14(28), p. 1801182(2018).
1	N.S. Lim, T.J. Yoo, J.T. Kim, Y.S. Park, K. Yogeenth, H.H. Kim, W.C. Kim, B.H. Lee, G.Y. Jung, “Tunable Graphene Doping by Controlling Nanopores Geometry ona SiO2/Si Substrate,"*RSC Advances* 8(17), 9031-907 (2018).

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Conferences

구분	번호	제목
국내	10	김시현, 장경은, 권민규, 유태진, 이병훈, "Ge 도핑 농도에 따른 그래핀/Ge 쇼트키 접합 광소자의 특성 변화", The 26th Korean Conference on Semiconductors (KCS), (2019) Best poster award.
국내	9	권민규, 장경은, 김시현, 김소영, 유태진, 이병훈, "화학적 도핑을 적용한 그래핀-Ge 기반 광검출 소자의 암전류 감소", The 26th Korean Conference of Semiconductors (KCS), (2019)
국제	8	So-Young Kim, Cihyun Kim, Ho-In Lee, Kiyung Kim, Kyoung Eun Chang, Sunwoo Heo, Byoung Hun Lee, "Effect of deposition temperature of ZnO(:N) for electrical characteristic of graphene barristor", Nano Korea, (2018).
국내	7	김시현, 장경은, 유태진, 권민규, 이병훈, "ZnO top gate를 이용한 그래핀/Ge 쇼트키 접합의 광소자 응용", The 25th Korean Conference on Semiconductors (KCS), (2018), Best poster award.
국내	6	이호인, 허선우, 김시현, 김윤지, 김승모, 김기영, 이용수, 이혜지, 이병훈, "ZnO:N-그래핀 접합 배리서터의 TiO2 층 페시베이션 효과", The 25th Korean Conference on Semiconductors (KCS), (2018)
국내	5	권민규, 장경은, 김시현, 이병훈, "Planarization of Ge surface through Hydrogen annealing for graphene/Ge hybrid device application", Nano Convergence Conference (NCC), (2018)
국제	4	Tae Jin Yoo, Sang Kyung Lee, Chunhum Cho, Kyoung Eun Chang, Cihyun Kim, Hyeon Jun Hwang, Byoung Hun Lee, "Influence of graphene/metal contact structure on the photocurrent generation", The 4th International Symposium on Hybrid Materials and Processing (HyMaP), (2017)
국제	3	S. Heo, Y. J. Kim, C. H. Kim, S. K. Lee, H. J. Lee, H. J. Hwang, J. Noh, B. H. Lee, "Graphene-ZnO:N Schottky junction based thin film transistor," Silicon Nanoworkshop (SNW), (2017).
국내	2	김시현, 김윤지, 유태진, 장경은, 이병훈, "고압 수소 열처리를 이용한 그래핀 광소자의 성능 개선", The 24th Korean Conference on Semiconductors (KCS), 2017
국제	1	Kyoung Eun Chang, Tae Jin Yoo, Ci hyun Kim, Sang Kyung Lee, Yun Ji Kim, Byoung Hun Lee, "High responsivity Graphene/Ge Schottky junction photodetector using ITO top gate modulation", Int. Conf. on Electronic Materials and Nanotechnology for Green Environment (ENGE), (2016)

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Other Expertise

Technical Skills

Composition analysis of compound semiconductors from HRXRD results using X’Pert software
Scanning electron microscopy, transmission electron microscopy, atomic force microscopy measurements and characterization
Photoluminescence, electroluminescence, I-V and Hall measurement

Course Work

Master

Electromagnetics
Quantum Physics for Engineering
Understanding and application of optical components and materials
Mathematical Analysis
Thin Film Technology
Transmission Electron Microscopy & Crystal Characteristics
Semiconductor Device Processing

Ph. D

Organic Materials for Electronics and Photonics I
Semiconductor Processing
Technology Venture Leadership
Optoelectronics
Nano Materials & Devices