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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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Modeling Photobleaching of Optical Chromophores: Light-Intensity Effects in Precise Trimming of Integrated Polymer Devices

TL;DR: In this article, a model for photobleaching of nonlinear optical (NLO) chromophores via photo-oxidation, using either high-intensity or low-intensity light sources, is presented.
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Low-voltage high-performance C60 thin film transistors via low-surface-energy phosphonic acid monolayer/hafnium oxide hybrid dielectric

TL;DR: In this article, C60-based organic thin film transistors (OTFTs) have been fabricated using a n-octadecylphosphonic acid self-assembled monolayer/sol-gel processed hafnium oxide hybrid dielectric.
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Optimization of Active Layer and Anode Electrode for High-Performance Inverted Bulk-Heterojunction Solar Cells

TL;DR: In this paper, inverted ZnO-NPs/C60-self-assembled monolayer (SAM)/poly(3-hexyl-thiophene):[6,6]-phenyl C61 butyric acid methyl ester solar cell devices were systemically optimized by varying the weight blend ratio of donor and acceptor from 1:0 to 1:1, the active layer thickness, the annealing temperature, the Annealing time, and the top anode electrode.
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Design and synthesis of thermally stable side-chain polyimides for second-order nonlinear optical applications

TL;DR: In this paper, optical chromophores were used as side-chains for polyimide sidechains with high electro-optic activity and long-term alignment stability at 100 °C for more than 500 h.
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Thermally stable nonlinear optical polyimides: synthesis and electro-optic properties

TL;DR: A facile synthetic method has been developed to incorporate efficient nonlinear optical chromophores as side-chains into high temperature polyimides resulting in high electro-optic activity and long-term thermal stability at 90 °C for over one month.