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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
Indacenodithiophene and Quinoxaline-Based Conjugated Polymers for Highly Efficient Polymer Solar Cells
TL;DR: In this paper, two lowband-gap conjugated polymers based on the polymerization between indacenodithiophene and 2,3-diphenylquinoxaline or phenanthrenequinoxalin were synthesized.
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C60 as an Efficient n-Type Compact Layer in Perovskite Solar Cells.
Konrad Wojciechowski,Tomas Leijtens,Tomas Leijtens,Svetlana Siprova,Svetlana Siprova,Christoph Schlueter,Maximilian T. Hörantner,Jacob Tse-Wei Wang,Chang-Zhi Li,Alex K.-Y. Jen,Tien-Lin Lee,Henry J. Snaith +11 more
TL;DR: This work focuses on the electron selective contact in the perovskite solar cells and physical processes occurring at that heterojunction, and develops efficient devices by replacing the commonly employed TiO2 compact layer with fullerene C60 in a regular n-i-p architecture.
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Optical modulation and detection in slotted Silicon waveguides
Tom Baehr-Jones,Michael Hochberg,Guangxi Wang,Rhys Lawson,Yi Liao,Philip A. Sullivan,Larry R. Dalton,Alex K.-Y. Jen,Axel Scherer +8 more
TL;DR: A novel mechanism for low power optical detection and modulation in a slotted waveguide geometry filled with nonlinear electro-optic polymers is demonstrated, suggesting that a new class of detectors based on nonlinear optics may be practical.
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High performance ambient processed inverted polymer solar cells through interfacial modification with a fullerene self-assembled monolayer
TL;DR: In this article, the performance of inverted bulk-heterojunction solar cells with zinc oxide nanoparticles as the electron selective contact is compared to those modified with a fullerene self-assembled monolayer (C60-SAM).
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Highly efficient all-inorganic perovskite solar cells with suppressed non-radiative recombination by a Lewis base.
Jing Wang,Jie Zhang,Yingzhi Zhou,Hongbin Liu,Qifan Xue,Xiaosong Li,Chu-Chen Chueh,Hin-Lap Yip,Zonglong Zhu,Alex K.-Y. Jen,Alex K.-Y. Jen +10 more
TL;DR: The studies reveal that the nitrile (C-N) groups on the small molecule effectively reduce the trap density of the perovskite film and thus significantly suppresses the non-radiative recombination in the derived PVSC by passivating the Pb-exposed surface, resulting in an improved open-circuit voltage from 1.10 V to 1.16”V after passivation.