Yang, Yang - University of California, Los Angeles

个人简介

Yang Yang holds a BS in Physics from the National Cheng-Kung University in Taiwan in 1982, and he received his M.S. and Ph.D. in Physics and Applied Physics from the University of Massachusetts, Lowell in 1988 and 1992, respectively. Before he joined UCLA in 1997, he served on the reseasrch staff of UNIAX (now DuPont Display) in Santa Barbara from 1992 to 1996. Yang is now the Carol and Lawrence E. Tannas Jr. Endowed Chair Professor of Materials Science and Engineering at UCLA. He is a materials physicist with expertise in the fields of organic electronics, organic/inorganic interface engineering, and the development and fabrication of related devices, such as photovoltaic cells, LEDs, and memory devices. His notable contributions to the field of organic photovoltaics (OPV) are an enhanced understanding of polymer morphology and its influence on device performance; the invention of the inverted organic solar cell, the inverted tandem solar cell, photovoltaic polarizers for LCD applications, and transparent OPV devices. Together with Solarmer Energy Inc. (spun-off from UCLA) and Prof. Luping Yu at the University of Chicago, he has taken part in the creation of several world record cells in OPV. In addition to organic solar cells, his group is also heavily involved in the development of liquid-processable CIGS/CZTS photovoltaics. His group has achieved approximately 11.2% PCE using a CISS absorber layer deposited from a solution- phase precursor system. Recently, his group has entered the field of perovskite solar cell, and he demonstrated 19.3% power conversion efficiency by interface engineering and improved crystal growth process. (Please refer to the group publication list for details.) Prof. Yang is the Carol and Lawrence E. Tannas Jr. Chair in Engineering; he is also the Fellow of APS, MRS, SPIE, Royal Society of Chemistry and the Electromagnetic (EM) Academy. He has received the following honors/awards: Thomson Reuter Highly Cited Researcher in both Chemistry and Materials Science (2014, 2015), Top 11 Hot-Researchers in 2010, Science Watch ((only 11 were selected world wide); Highest cited Paper in 2010, Advanced Functional Materials; Highest cited Paper in 2008-2010, Journal of American Chemical Society (JACS); IEEE Photovoltaic Field Expert, 2009; Microelectronics Advanced Research Corporation Inventor Recognition Award, 2007; NSF Career Award, 1998; 3M Young Investigator Award, 1998.

研究领域

Organic Photovoltaics Perovskite Photovoltaics CZTS Photovoltaics Thin-film Transistors Our research involves advanced technologies in thin film solar cells, transparent conductors, metal oxide transistors, and other electronic devices. We have applied various kinds of semiconductor materials including conjugated polymers and organic molecules, carbon-based nanomaterials (CNT and graphene), hybrid semiconductors such as perovskite, and inorganic semiconductors (CZTS, CIGS) to pursue high performance thin film devices, such as LED, solar cell, transistor and digital memory. Our research strategy is primarily on the design/synthesis of solution-processable materials; understanding basic materials properties; forming unique (or novel) devices and investigating the physical properties of device physics.

近期论文

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The surface of halide perovskites from nano to bulk Jingjing Xue, Rui Wang and Yang Yang Nature Reviews Materials (2020) A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells Yepin Zhao, Pengchen Zhu, Minhuan Wang, Shu Huang, Zipeng Zhao, Shaun Tan, Tae‐Hee Han, Jin‐Wook Lee, Tianyi Huang, Rui Wang, Jingjing Xue, Dong Meng, Yu Huang, Jaime Marian, Jia Zhu and Yang Yang Adv. Mater. 2020, 32, 1907769. High Performance Indium‐Gallium‐Zinc Oxide Thin Film Transistor via Interface Engineering Yepin Zhao, Zhengxu Wang, Guangwei Xu, Le Cai, Tae‐Hee Han, Anni Zhang, Quantan Wu, Rui Wang, Tianyi Huang, Pei Cheng, Sheng‐Yung Chang, Daqian Bao, Zhiyu Zhao, Minhuan Wang, Yijie Huang and Yang Yang Adv. Funct. Mater. 2020, 2003285. Efficient Flexible Inorganic Perovskite Light-Emitting Diodes Fabricated with CsPbBr3 Emitters Prepared via Low-Temperature in Situ Dynamic Thermal Crystallization Chen Chen, Tae-Hee Han, Shaun Tan, Jingjing Xue, Yepin Zhao, Yunfei Liu, Haoran Wang, Wei Hu, Cong Bao, Marco Mazzeo, Rui Wang, Yu Duan, and Yang Yang Nano Lett. 2020, ASAP Narrowing the Band Gap: The Key to High-Performance Organic Photovoltaics Pei Cheng and Yang Yang Acc. Chem. Res. 2020, ASAP Constructing High‐Performance Organic Photovoltaics via Emerging Non‐Fullerene Acceptors and Tandem‐Junction Structure Pei Cheng, Jiayu Wang, Xiaowei Zhan, Yang Yang Adv. Energy Mater. 2020, 2000746. Hybrid Integrated Photomedical Devices for Wearable Vital Sign Tracking Sang-Hoon Bae, Donghyuk Kim, Sheng-Yung Chang, Janet Hur, Hyunseok Kim, Jin-Wook Lee, Bowen Zhu, Tae-Hee Han, Chanyeol Choi, Diana L. Huffaker, Dino Di Carlo, Yang Yang, You Seung Rim ACS Sens. 2020, ASAP A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells Yepin Zhao, Pengchen Zhu, Minhuan Wang, Shu Huang, Zipeng Zhao, Shaun Tan, Tae‐Hee Han, Jin‐Wook Lee, Tianyi Huang, Rui Wang, Jingjing Xue, Dong Meng, Yu Huang, Jaime Marian, Jia Zhu, Yang Yang Adv. Mater. 2020, 1907769. Surface‐2D/Bulk‐3D Heterophased Perovskite Nanograins for Long‐Term‐Stable Light‐Emitting Diodes Tae‐Hee Han, Jin‐Wook Lee, Yung Ji Choi, Chungseok Choi, Shaun Tan, Sung‐Joon Lee, Yepin Zhao, Yu Huang, Dongho Kim, Yang Yang Adv. Mater. 2020, 32, 1905674. Hermetic seal for perovskite solar cells: An improved plasma enhanced atomic layer deposition encapsulation Haoran Wang, Yepin Zhao, Zhenyu Wang, Yunfei Liu, Zipeng Zhao, Guangwei Xu, Tae-Hee Han, Jin-Wook Lee, Chen Chen, Daqian Bao, Yu Huang, Yu Duan, Yang Yang Nano Energy, Volume 69, 2020, 104375, ISSN 2211-2855 Steric Impediment of Ion Migration Contributes to Improved Operational Stability of Perovskite Solar Cells Shaun Tan, Ilhan Yavuz, Nicholas De Marco, Tianyi Huang, Sung‐Joon Lee, Christopher S. Choi, Minhuan Wang, Selbi Nuryyeva, Rui Wang, Yepin Zhao, Hao‐Cheng Wang, Tae‐Hee Han, Bruce Dunn, Yu Huang, Jin‐Wook Lee, Yang Yang Adv. Mater. 2020, 32, 1906995. Translating local binding energy to a device effective one Dan Liraz, Pei Cheng, Yang Yang and Nir Tessler Sustainable Energy Fuels, 2020,4, 760-771 Potassium-Presenting Zinc Oxide Surfaces Induce Vertical Phase Separation in Fullerene-Free Organic Photovoltaics Hao-Wen Cheng, Putikam Raghunath, Kai-li Wang, Pei Cheng, Tianyi Haung, Quantan Wu, Jun Yuan, Yu-Che Lin, Hao-Cheng Wang, Yingping Zou, Zhao-Kui Wang, M. C. Lin, Kung-Hwa Wei, Yang Yang Nano Lett. 2020, 20, 1, 715-721 Constructive molecular configurations for surface-defect passivation of perovskite photovoltaics Rui Wang, Jingjing Xue, Kai-Li Wang, Zhao-Kui Wang, Yanqi Luo, David Fenning, Guangwei Xu, Selbi Nuryyeva, Tianyi Huang, Yepin Zhao, Jonathan Lee Yang, Jiahui Zhu, Minhuan Wang, Shaun Tan, Ilhan Yavuz, Kendall N. Houk, Yang Yang Science 20 Dec 2019: Vol. 366, Issue 6472, pp. 1509-1513 Cluster Size Control toward High Performance Solution Processed InGaZnO Thin Film Transistors Zhengxu Wang, Guangwei Xu, Zhiyu Zhao, Le Cai, Quantan Wu, Pei Cheng, Yepin Zhao, Jingjing Xue, Rui Wang, Chong Liu, Yang Yang ACS Appl. Electron. Mater. 2019, 1, 12, 2483-2488 Core–Shell ZnO@SnO2 Nanoparticles for Efficient Inorganic Perovskite Solar Cells Zhenxing Li, Rui Wang, Jingjing Xue, Xiaofei Xing, Chengcheng Yu, Tianyi Huang, Junmei Chu, Kai-Li Wang, Chong Dong, Zhiting Wei, Yepin Zhao, Zhao-Kui Wang, Yang Yang J. Am. Chem. Soc. 2019, 141, 44, 17610-17616 Controlled Redox of Lithium-Ion Endohedral Fullerene for Efficient and Stable Metal Electrode-Free Perovskite Solar Cells Il Jeon, Ahmed Shawky, Hao-Sheng Lin, Seungju Seo, Hiroshi Okada, Jin-Wook Lee, Amrita Pal, Shaun Tan, Anton Anisimov, Esko I Kauppinen, Yang Yang, Sergei Manzhos, Shigeo Maruyama, Yutaka Matsuo J. Am. Chem. Soc. 2019, 141, 42, 16553-16558 Field-Dependent Mobility Enhancement and Contact Resistance in a-IGZO TFTs Guangwei Xu, Le Cai, Zhengxu Wang, Quantan Wu , Congyan Lu, Zhiyu Zhao, Yepin Zhao, Di Geng , Ling Li, Ming Liu, and Yang Yang IEEE Transactions on Electron Devices, vol. 66, no. 12, pp. 5166-5169, Dec. 2019. Rational Tuning of Molecular Interaction and Energy Level Alignment Enables High‐Performance Organic Photovoltaics Rui Wang, Jun Yuan, Rui Wang, Guangchao Han, Tianyi Huang, Wenchao Huang, Jingjing Xue, Hao‐Cheng Wang, Chunfeng Zhang, Chenhui Zhu, Pei Cheng, Dong Meng, Yuanping Yi, Kung‐Hwa Wei, Yingping Zou, Yang Yang Crystalline Liquid-like Behavior: Surface-Induced Secondary Grain Growth of Photovoltaic Perovskite Thin Film Jingjing Xue, Rui Wang, Kai-Li Wang, Zhao-Kui Wang, Ilhan Yavuz, Yang Wang, Yingguo Yang, Xingyu Gao, Tianyi Huang, Selbi Nuryyeva, Jin-Wook Lee, Yu Duan, Liang-Sheng Liao, Richard Kaner, Yang Yang J. Am. Chem. Soc. 2019 141 35 13948-13953 Molecular Tuning of Titanium Complexes with Controllable Work Function for Efficient Organic Photovoltaics Rui Wang, Jingjing Xue, Dong Meng, Pei Cheng, Jun Yuan, Sheng-Yung Chang, Shaun Tan, Boyu Jia, Zhaohui Wang, Yingping Zou, Xiaowei Zhan, Yang Yang J. Phys. Chem. C, 2019 123 34 20800-20807