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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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Achieving excellent electro-optic activity and thermal stability in poled polymers through an expeditious crosslinking process
Zhengwei Shi,Jingdong Luo,Su Huang,Brent M. Polishak,Xing-Hua Zhou,Shawna M. Liff,Todd R. Younkin,Bruce A. Block,Alex K.-Y. Jen +8 more
TL;DR: A series of highly efficient and thermally stable electro-optic polymers have been developed by poling and crosslinking in situ the blend of high glass-transition temperature (Tg) anthracene-containing polymers and acrylate-functionalized dendritic nonlinear optical (NLO) chromophores.
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Ultrafast Spectroscopic Study of Photoinduced Electron Transfer in an Oligo(thienylenevinylene):Fullerene Composite†
In-Wook Hwang,Qing-Hua Xu,Qing-Hua Xu,Cesare Soci,Baoquan Chen,Alex K.-Y. Jen,Daniel Moses,Alan J. Heeger +7 more
TL;DR: In this paper, photoexcitations decay primarily via intrachain relaxation rather than photoinduced electron transfer from OTV to PCBM, and the electron transfer process requires ca. 14 ps; larger by more than two orders of magnitude than the required time observed in conjugated-polymer:C 60 composites, and also larger than the 0.6 ps singlet-state lifetime in OTV.
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In situ doping and crosslinking of fullerenes to form efficient and robust electron-transporting layers for polymer solar cells
TL;DR: In this paper, an efficient electron-transporting layers (ETL) with a stable conductive fullerene doped into a thermally crosslinkable matrix have been developed for inverted polymer solar cells (PSCs).
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Solution processed inverted tandem polymer solar cells with self-assembled monolayer modified interfacial layers
TL;DR: Inverted tandem bulk-heterojunction solar cells with comparable efficiency to single layer devices have been demonstrated by utilizing two thin layers (∼50nm) of poly-(3-hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester as the active material and a fullerene self-assembled monolayer (C60-SAM) to modify the interfaces between the ZnO buffer layer and the active layer as mentioned in this paper.
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Sub-Volt Silicon-Organic Electro-optic Modulator With 500 MHz Bandwidth
Ran Ding,Tom Baehr-Jones,Woo-Joong Kim,Alexander Spott,Maryse Fournier,Jean-Marc Fedeli,Su Huang,Jingdong Luo,Alex K.-Y. Jen,Larry R. Dalton,Michael Hochberg +10 more
TL;DR: In this article, an electro-optic polymer-clad silicon slot waveguide was used for a Mach-Zehnder interferometer (MZI) modulator with a half-wave voltage of only 0.69 V and a bandwidth of 500 MHz.