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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
New push–pull polyene chromophores containing a Michler's base donor and a tricyanofuran acceptor: multicomponent condensation, allopolar isomerism and large optical nonlinearity
Jingdong Luo,Francis Lin,Zhong'an Li,Ming Li,Tae-Dong Kim,Sei-Hum Jang,Alex K.-Y. Jen,Alex K.-Y. Jen +7 more
TL;DR: The high chemo-selectivity of bis-aldehydes for condensation with both basic and acidic active methylene compounds facilitates a one-pot, three-component reaction to produce dipolar polyene chromophores as the major products for electro-optics.
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Highly Efficient Flexible Perovskite Solar Cells through Pentylammonium Acetate Modification with Certified Efficiency of 23.35%
Danpeng Gao,Bo Li,Zhen Li,Xin Wu,Shoufeng Zhang,Dan Zhao,Xiaofen Jiang,Chunlei Zhang,Yan Wang,Zhenjiang Li,Nan Li,Shuang Xiao,Wallace C. H. Choy,Alex K.-Y. Jen,Shang Fa Yang,Zong Hua Zhu +15 more
TL;DR: In this article , a flexible inverted perovskite solar cells (PSCs) with a pentylammonium acetate (PenAAc) molecule was proposed to achieve an exceptional power conversion efficiency (PCE) of 23.68% (0.08 cm2, certified: 23.35%).
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Bias-free electro-optic polymer-based two-section Y-branch waveguide modulator with 22 dB linearity enhancement
TL;DR: A bias-free two-section Y-branch directional coupler modulator with high linearity based on domain-inverted modulation with an experimentally confirmed device r(33) value of 56 pm/V at 1.59 microm is fabricated and tested.
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Plasmon resonant structures with unique topographic characteristics and tunable optical properties for surface-enhanced Raman scattering
TL;DR: In this article, a simple, inexpensive, parallel approach was developed for scalable large-area fabrication of two-dimensional (2D) periodic arrays of plasmon resonant structures.
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Using micro-patterned sensors and cell self-assembly for measuring the oxygen consumption rate of single cells
James Etzkorn,Wen Chung Wu,Zhiyuan Tian,Prince J. Kim,Sei Hum Jang,Deirdre R. Meldrum,Alex K.-Y. Jen,Babak A. Parviz +7 more
TL;DR: The single-cell self-assembly method is studied and optimized to obtain a 52% yield of single-trapped cells, and a method to measure the oxygen consumption rate of a single cell using micro-patterned sensors is reported.