Person
Likai Zheng
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High-valence metals improve oxygen evolution reaction performance by modulating 3dmetal oxidation cycle energetics
Likai Zheng, Yang Li, Yelin Hu, Jun Li, Ye Zhang, Ziyun Wang, Bo Zhang, Zhen Cao
Multimetal oxyhydroxides have recently been reported that outperform noble metal catalysts for oxygen evolution reaction (OER). In such 3d-metal-based catalysts, the oxidation cycle of 3dmetals has been posited to act as the OER thermodynamic-limiting proc ...
NATURE RESEARCH2020Vapor-assisted deposition of highly efficient, stable black-phase FAPbI(3) perovskite solar cells
Shaik Mohammed Zakeeruddin, David Lyndon Emsley, Ursula Röthlisberger, Wolfgang Richard Tress, Felix Thomas Eickemeyer, Yuhang Liu, Haizhou Lu, Likai Zheng, Ulf Anders Hagfeldt, Xiong Li, Zaiwei Wang, Fan Fu, Paramvir Ahlawat, Aditya Mishra, Claudia Esther Avalos, Brian Irving Carlsen, Xianfu Zhang, Anand Agarwalla, Ying Yang
Mixtures of cations or halides with FAPbI(3) (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase se ...
AMER ASSOC ADVANCEMENT SCIENCE2020