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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
Effects of formamidinium and bromide ion substitution in methylammonium lead triiodide toward high-performance perovskite solar cells
Zhibin Yang,Chu-Chen Chueh,Po-Wei Liang,Michael R. Crump,Francis Lin,Zonglong Zhu,Alex K.-Y. Jen +6 more
TL;DR: In this article, the structural, optophysical, and photovoltaic properties of the compositional MAxFA1−xPb(IyBr1−y)3 perovskite by sequentially introducing FA+ and Br- ions into the parental MAPbI3 were investigated.
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Rational Design of Dipolar Chromophore as an Efficient Dopant-Free Hole-Transporting Material for Perovskite Solar Cells
Zhong'an Li,Zonglong Zhu,Chu-Chen Chueh,Sae Byeok Jo,Jingdong Luo,Sei Hum Jang,Alex K.-Y. Jen +6 more
TL;DR: An electron donor-acceptor (D-A) substituted dipolar chromophore (BTPA-TCNE) is developed to serve as an efficient dopant-free hole-transporting material (HTM) for perovskite solar cells (PVSCs) by outperforming the control device with doped spiro-OMeTAD HTM.
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Highly Efficient Porphyrin-Based OPV/Perovskite Hybrid Solar Cells with Extended Photoresponse and High Fill Factor
Ke Gao,Zonglong Zhu,Bo Xu,Sae Byeok Jo,Yuanyuan Kan,Xiaobin Peng,Alex K.-Y. Jen,Alex K.-Y. Jen +7 more
TL;DR: A new porphyrin is synthesized and blended with [6,6]-phenyl-C61-butyric acid methyl ester to function as an efficient BHJ for OPV/perovskite hybrid solar cells that afford a very high power conversion efficiency (PCE) (19.02%) with high Voc, JSC, and FF achieved simultaneously.
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Modulation of PEDOT:PSS pH for Efficient Inverted Perovskite Solar Cells with Reduced Potential Loss and Enhanced Stability
TL;DR: A simple method is described to alleviate the severe potential loss issue of PEDOT:PSS-based CH3NH3PbI3 PVSCs by tuning the pH value of PedsS with a mild base, imidazole, to promote the quality and crystallization of the perovskite film deposited on top of it and enable better energy-level alignment at this corresponding interface.
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Non-halogenated solvents for environmentally friendly processing of high-performance bulk-heterojunction polymer solar cells
Chu-Chen Chueh,Chu-Chen Chueh,Kai Yao,Kai Yao,Hin-Lap Yip,Hin-Lap Yip,Chih Yu Chang,Yun-Xiang Xu,Kung-Shih Chen,Chang-Zhi Li,Peng Liu,Fei Huang,Yiwang Chen,Wen-Chang Chen,Alex K.-Y. Jen +14 more
TL;DR: In this paper, high performance bulk-heterojunction (BHJ) polymer solar cells (PSCs) processed from non-halogenated solvents with power conversion efficiency values over 7% were demonstrated for the first time.