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Alex K.-Y. Jen
Researcher at City University of Hong Kong
Publications - 973
Citations - 72195
Alex K.-Y. Jen is an academic researcher from City University of Hong Kong. The author has contributed to research in topics: Perovskite (structure) & Polymer. The author has an hindex of 128, co-authored 921 publications receiving 61811 citations. Previous affiliations of Alex K.-Y. Jen include University of Nebraska–Lincoln & Zhejiang California International NanoSystems Institute.
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Journal ArticleDOI
High-performance hole-transporting layer-free conventional perovskite/fullerene heterojunction thin-film solar cells
TL;DR: In this article, a hole-transporting layer (HTL)-free conventional perovskite/fullerene heterojunction thin-film PVSC was demonstrated, which achieved a PCE of >11% with a high open-circuit voltage (Voc) of 101 V.
Journal ArticleDOI
Solvent-dependent assembly of terphenyl- and quaterphenyldithiol on gold and gallium arsenide
TL;DR: The assembly of terphenyldithiol and QPDT on gold and gallium arsenide from ethanol (EtOH), tetrahydrofuran (THF), and solutions consisting of both solvents has been characterized by near-edge X-ray absorption fine structure spectroscopy.
Proceedings ArticleDOI
Recent progress in developing highly efficient and thermally stable nonlinear optical polymers for electro-optics
Jingdong Luo,Sen Liu,Marnie Haller,Jae-Wook Kang,Tae-Dong Kim,Sei-Hum Jang,Baoquan Chen,Neil M. Tucker,Hongxiang Li,Hong-Zhi Tang,Larry R. Dalton,Yi Liao,Bruce H. Robinson,Alex K.-Y. Jen +13 more
TL;DR: In this paper, a lattice-hardening approach was proposed to overcome the nonlinearity-stability tradeoff of conventional thermoset methods, which can achieve the same high poling efficiency and large r33value as in a guest-host system while maintaining good thermal stability seen in densely-crosslinked polymers.
Journal ArticleDOI
Optical Enhancement via Electrode Designs for High‐Performance Polymer Solar Cells
TL;DR: In this article, a comprehensive overview focusing on recent developments and achievements in PSC electrode engineering is provided in this review, and strategies to improve MCPSC performance further to showcase the potential of harnessing microcavity resonance effects in thin-film PSCs.
Journal ArticleDOI
On understanding bandgap bowing and optoelectronic quality in Pb–Sn alloy hybrid perovskites
TL;DR: In this article, the authors explore a wide range of A-site compositions to understand bandgap bowing and identify the optimal Pb 1−xSnxI3 alloy composition, finding that ternary combinations of methylammonium (MA), formamidinium (FA), and cesium (Cs) are beneficial to improve the optoelectronic quality of APbI3 alloys.