Narrative CV

Dr. Tzung-Fang Guo is a Research Fellow specializing in organic electronics devices and hybrid organolead halide perovskite-based devices. His research interests focus on high-performance organic/polymer light-emitting diodes, polymer photovoltaics, n-type pentacene organic thin-film transistors, and the magnetic field effect of organic electronic devices. He obtained his Ph.D. from the Department of Materials Science and Engineering at the University of California Los Angeles. Dr. Guo has contributed to multiple international research projects.

Dr. Guo was the first to develop perovskite-based hybrid solar cells with a p-i-n device configuration and apply a p-type nickel oxide electrode interlayer in fabricating efficient perovskite solar cells and light-emitting diodes. His work has significantly impacted novel perovskite photovoltaic and solid-state lighting fields.

Dr. Guo has collaborated with Chi-Mei Optoelectronics Corporation on organic light-emitting diodes, leading to the development of novel organic oxide/Al cathode structures. As a mentor, he has guided 60 graduate students, fostering new talent in organic semiconductors. From 2012 to 2018, Dr. Guo served as Chairman of the Department of Photonics at National Cheng Kung University, Taiwan. He is currently a Fellow of SPIE and OPTICA.

Dr. Guo’s future research aims to deepen the development of highly efficient perovskite/Si tandem solar cells, explore the unique interfacial properties in perovskite-based light-emitting diodes, investigate the magnetic field effect in organic electronic devices, and enhance interdisciplinary collaboration.

Education

• 2002 PhD, Department of Materials and Engineering, University of California, Los Angeles

Positions and Career

• Research Fellow, Research Center for Applied Science, Academia Sinica, Taiwan (2024-date)
• Professor, Department of Photonics, National Cheng Kung University, Taiwan (2009-date)
• Department Chairman, Department of Photonics, National Cheng Kung University, Taiwan (2012-2018)
• Associate Professor, Institute of Electro-Optical Science & Engineering, National Cheng Kung University, Taiwan (2006-2009)
• Assistant Professor, Institute of Electro-Optical Science & Engineering, National Cheng Kung University, Taiwan (2003-2006)
• Research Scientist, Nitto Denko Technical Corporation, San Diego, USA (2003)

Honors and Awards

• 2010 NCKU K. T. LI Research award
• 2012, 2015, 2018, and 2021 NCKU Distinguished Professor Award
• 2018 Academic Outstanding Research Award in Chemistry, Ministry of Science and Technology, Taiwan
• 2020 Fellow of SPIE (International Society for Optics and Photonics)
• 2024 Fellow of OPTICA (formerly OSA)

Selected Publications

• T. -L. Shen, A. Loganathan, T. -H. Do, C. -M. Wu, Y. -T. Chen, Z. -J. Chen, N. -C. Chiu, C. -H. Shih, H. -C. Wang, J. -H. Chou, Y. -Y. Hsu, C. -C. Liu, Y. -C. Chang, Y. -S. Fu, W. -C. Lai, P. -T. Chen, T. -C. Wen, T. -F. Guo*, "Characterize and retard the impact of the bias-induced mobile ions in CH₃NH₃PbBr₃ perovskite light-emitting diodes" Adv. Optical Mater. 10, 2101439 (2022).
• M. -H. Li, H. -H. Yeh, Y. -H. Chiang, U -S. Jeng, C. -J. Su, H. -W. Shiu, Y. -J. Hsu, N. Kosugi, T. Ohigashi, Y. -A. Chen, P. -S. Shen, P. Chen*, and T. -F. Guo*, "Highly efficient 2D/3D hybrid perovskite solar cells via lowpressure vapor-assisted solution process" Adv. Mater. 30, 1804801 (2018). (Highly cited papers in ESI)
• Y. -K. Chih, J. -C. Wang, R. -T. Yang, C. -C. Liu, Y. -C. Chang, Y. -S. Fu, W. -C. Lai, P. Chen, T. -C. Wen, Y. -C. Huang, C. -S. Tsao, and T -F. Guo*, "NiOx electrode interlayer and CH₃NH₂/CH₃NH₃PbBr₃ interface treatment to markedly advance hybrid perovskite-based lightemitting diodes" Adv. Mater. 28, 8687 (2016).
• W. -C. Lai*, K. -W. Lin, Y. -T. Wang, T. -Y. Chiang, P. Chen, and T. -F. Guo*, "Oxidized Ni/Au transparent electrode in efficient CH₃NH₃PbI₃ perovskite/fullerene planar heterojunction hybrid solar cells" Adv. Mater. 28, 3290 (2016).
• J. -Y. Jeng, K. -C. Chen, T. -Y. Chiang, P. -Y. Lin, T. -D. Tsai, Y. -C. Chang, T. -F. Guo*, and P. Chen* "Nickel oxide electrode interlayer in CH₃NH₃PbI₃ perovskite/PCBM planar-heterojunction hybrid solar cells" Adv. Mater. 26, 4107 (2014). (Highly cited papers in ESI)
• K. -C. Wang, J. -Y. Jeng, P. -S. Shen, Y. -C. Chang, E. W. -G. Diau, C. -H. Tsai, T. Y. Chao, H. -C. Hsu, P. -Y. Lin, P. Chen*, T. -F. Guo*, and T. -C. Wen "p-type mesoscopic nickel oxide/organometallic perovskite heterojunction solar sells" Sci. Rep. 4, 4756 (2014). (Highly cited papers in ESI)
• J. -Y. Jeng, Y. -F. Chiang, M. -H. Lee, S. -R. Peng, T. -F. Guo*, P. Chen*, and T. -C. Wen "CH₃NH₃PbI₃ perovskite/fullerene planarheterojunction hybrid solar cells" Adv. Mater. 25, 3727 (2013). (SPIE Newsroom highlighted) (Highly cited papers in ESI)
• T. -D. Tsai, J. -W. Chang, T. -C. Wen, and T. -F. Guo* "Manipulating the hysteresis in poly(vinyl alcohol)-dielectric organic field-effect transistors toward memory elements" Adv. Funct. Mater. 23, 4206 (2013).
• J. -W. Chang, C. -G. Wang, C. -Y. Huang, T. -D. Tsai, T. -F. Guo*, and T. -C. Wen "Chicken albumen dielectrics in organic field-effect transistors" Adv. Mater. 23, 4077 (2011). (SPIE Newsroom highlighted)
• J. -Y. Jeng, M. -W. Lin, Y. -J. Hsu, T. -C. Wen, and T. -F. Guo* "The roles of poly(ethylene oxide) electrode buffers in efficient polymer photovoltaics" Adv. Energy Mater. 1, 1192 (2011).

• Y. Lin, S. -H. Luo, C. -T. Li and T. -F. Guo*, "Visualizing the “hidden” triplet-triplet fusion process to fluorescence in typical organic/polymer light-emitting diodes" Adv. Optical Mater. 13, 2402111 (2025).
• M. -H. Li, H. -H. Yeh, Y. -H. Chiang, U -S. Jeng, C. -J. Su, H. -W. Shiu, Y. -J. Hsu, N. Kosugi, T. Ohigashi, Y. -A. Chen, P. -S. Shen, P. Chen*, and T. -F. Guo*, "Highly efficient 2D/3D hybrid perovskite solar cells via low-pressure vapor-assisted solution process" Adv. Mater. 30, 1804801 (2018). (Highly cited papers in ESI)
• Y. -K. Chih, J. -C. Wang, R. -T. Yang, C. -C. Liu, Y. -C. Chang, Y. -S. Fu, W. -C. Lai, P. Chen, T. -C. Wen, Y. -C. Huang, C. -S. Tsao, and T. -F. Guo*, "NiOx electrode interlayer and CH₃NH₂/CH₃NH₃PbBr₃ interface treatment to markedly advance hybrid perovskite-based light-emitting diodes", Adv. Mater. 28, 8687 (2016).
• J. -Y. Jeng, K. -C. Chen, T. -Y. Chiang, P. -Y. Lin, T. -D. Tsai, Y. -C. Chang, T. -F. Guo*, and P. Chen* "Nickel oxide electrode interlayer in CH₃NH₃PbI₃ perovskite/PCBM planar-heterojunction hybrid solar cells" Adv. Mater. 26, 4107 (2014). (Highly cited papers in ESI)
• J. -Y. Jeng, Y. -F. Chiang, M. -H. Lee, S. -R. Peng, T. -F. Guo*, P. Chen*, and T. -C. Wen "CH₃NH₃PbI₃ perovskite/fullerene planar-heterojunction hybrid solar cells" Adv. Mater. 25, 3727 (2013). (SPIE Newsroom highlighted) (Highly cited papers in ESI)