W. J. Maeng, Joon Seok Park, Hyun-Suk Kim, Tae Sang Kim, Kyoung Seok Son, Kyung-Bae Park, Kwang-Hee Lee, Eok Su Kim, Yong Nam Ham, Myung Kwan Ryu, and Sang Yoon Lee, “Effects of Carrier Concentration in the Back and Front Channels of Hf-In-Zn-O Thin Film Transistors”, Journal of The Electrochemical Society, vol. 159, H147-H150 (2012).,

Joon Seok Park, Wan-Joo Maeng, Hyun-Suk Kim, and Jin-Seong Park, “Review of recent developments in amorphous oxide semiconductor thin-film transistor devices”, Thin Solid Films, vol. 520, 1679-1693 (2012) [Invited Review Article].,

Hyun-Suk Kim, Joon Seok Park, Wan-Joo Maeng, Kyung Seok Son, Tae Sang Kim, Myungkwan Ryu, Jiyoul Lee, Jae Cheol Lee, Gunwoo Ko, Seongil Im, and Sang Yoon Lee, “The Influence of In/Zn ratio on the Performance and Negative Bias Instability of Hf-In-Zn-O Thin Film Transistors under Illumination”, IEEE Electron Device Letters, vol. 32, 1251-1253 (2011).,

W. J. Maeng, Joon Seok Park, Hyun-Suk Kim, Eok Soo Kim, Kyoung Seok Son, Tae Sang Kim, Myungkwan Ryu, and Sang Yoon Lee, “The effect of active-layer thickness and back-channel conductivity on the subthreshold transfer characteristics of Hf-In-Zn-O TFTs”, IEEE Electron Device Letters, vol. 32, 1077-1079 (2011).,

Tae Sang Kim, Joon Seok Park, Kyoung Seok Son, Ji Sim Jung, Kwang-Hee Lee, Wan Joo Maeng, Hyun-Suk Kim, Jang-Yeon Kwon, Bonwon Koo, and Sangyun Lee, “Transparent AMOLED display driven by hafnium-indium-zinc oxide thin film transistor array”, Current Applied Physics, vol. 11, 1253-1256 (2011).,

Hyun-Suk Kim, Lei Bi, Dong Hun Kim, Dae-Jin Yang, Yoon Jeong Choi, Jung Woo Lee, Jeung Ku Kang, Yun Chang Park, Gerald F. Dionne, and Caroline A. Ross, “Ferromagnetism in Single Crystal and Nanocomposite Sr(Ti,Fe)O3 Epitaxial Films”,Journal of Materials Chemistry, vol. 21, 10364-10369 (2011) [IF = 6.626].,

Gerald F. Dionne, Lei Bi, H.-S.Kim, and C. A. Ross, “Spectral origins of high Faraday rotation at 1.5-μm wavelength from Fe and Co in SrTiO3 films”,Journal of Applied Physics, vol. 109, 07B761 (2011).,

Joon Seok Park, Tae Sang Kim, Kyoung Seok Son, Wan-Joo Maeng, Hyun-Suk Kim, Myoung Kwan Ryu, and Sang Yoon Lee, “The effect of UV-assisted cleaning on the performance and stability of amorphous oxide semiconductor thin-film transistors under illumination”, Applied Physics Letters, vol. 98, 012107 (2011).,

Hyeokjo Gwon*, Hyun-Suk Kim*, Kye Ung Lee, Dong-Hwa Seo, Yun Chang Park, Yun-Sung Lee, Byung Tae Ahn, and Kisuk Kang, *contributedequally“Flexible energy storage devices based on graphene paper”,Energy & Environmental Science, vol. 4, 1277-1283 (2011) [featured in “Chemistry World News, RSC”, “Gizmo Watch”, and “Materials For Energy”, and also featured as Top Ten most-read Energy & Environmental Science articles in March, 2011] [IF = 25.427].,

W. J. Maeng, Joon Seok Park, Hyun-Suk Kim, Kwang-Hee Lee, Kyung Bae Park, Kyoung Seok Son, Tae Sang Kim, Eok Su Kim, Yong Nam Ham, Myung Kwan Ryu, and Sang Yoon Lee, “Photo and thermal stability enhancement of amorphous Hf-In-Zn-O thin film transistors by the modulation of back channel composition”, Applied Physics Letters, vol. 98, 073503 (2011).,

Kyoung Seok Son, Hyun-Suk Kim, Wan-Joo Maeng, Ji Sim Jung, Kwang-Hee Lee, Tae Sang Kim, Joon Seok Park, Jang Yeon Gwon, Bon Won Goo, and Sang Yoon Lee, “The effect of dynamic bias stress on the photon-enhanced threshold voltage instability of amorphous HfInZnO thin film transistors”, IEEE Electron Device Letters, vol. 32, 164-166 (2011).,

Joon Seok Park, Tae Sang Kim, Kyoung Seok Son, Eunha Lee, Ji Sim Jung, Kwang-Hee Lee, Wan-Joo Maeng, Hyun-Suk Kim, Eok Su Kim, Kyung-Bae Park, Jang-Yeon Kwon, Myoung Kwan Ryu, and Sang Yoon Lee, “Ti/Cu bilayer electrodes for SiNx-passivated Hf-In-Zn-O thin film transistors: Device performance and contact resistance”, Applied Physics Letters, vol. 97, 162105 (2010).,

Joon Seok Park, Tae Sang Kim, Kyoung Seok Son, Kwang-Hee Lee, Ji Sim Jung, Wan-Joo Maeng, Hyun-Suk Kim, Eok Su Kim, Kyung-Bae Park, Jong-Baek Seon, Jang-Yeon Kwon, Myoung Kwan Ryu, and Sangyun Lee, “High-Performance and Stable Transparent Hf-In-Zn-O Thin Film Transistors with a Double-Etch-Stopper Layer”, IEEE Electron Device Letters, vol. 31, 1248-1250 (2010).,

Hyun-Suk Kim, Kyung-Bae Park, Kyoung Seok Son, Joon Seok Park, Wan-Joo Maeng, Tae Sang Kim, Kwang-Hee Lee, Eok Su Kim, Jiyoul Lee, Joonki Suh, Jong-Baek Seon, Myoung Kwan Ryu, Sang Yoon Lee, Kimoon Lee, and Seongil Im, “The influence of sputtering power and O2/Ar flow ratio on the performance and stability of Hf-In-Zn-O thin film transistors under illumination”, Applied Physics Letters, vol. 97, 102103 (2010).,

Joon Seok Park, Kyoung Seok Son, Tae Sang Kim, Ji Sim Jung, Kwang-Hee Lee, Wan-Joo Maeng, Hyun-Suk Kim, Eok Su Kim, Kyung-Bae Park, Jong-Baek Seon, Jang-Yeon Kwon, Myoung Kwan Ryu, and Sangyun Lee, “High Performance and Stability of Double-Gate Hf-In-Zn-O Thin Film Transistors under Illumination”, IEEE Electron Device Letters, vol. 31, 960-962 (2010).,