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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
Bottom-contact small-molecule n-type organic field effect transistors achieved via simultaneous modification of electrode and dielectric surfaces
Nathan Cernetic,Orb Acton,Tobias Weidner,Daniel O. Hutchins,Joe E. Baio,Hong Ma,Alex K.-Y. Jen +6 more
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Tunable light‐harvesting polymers containing embedded dipolar chromophores for polymer solar cell applications
TL;DR: In this article, a series of light harvesting conjugated polymers were designed and synthesized for polymer solar cells, which include an electron-rich thiophene-triphenylamine backbone and stable planar indacenodithiophene π-bridges terminated with tunable electron acceptors.
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Time-, Energy-, and Phase-Resolved Second-Harmonic Generation at Semiconductor Interfaces
Cory A. Nelson,Jingdong Luo,Alex K.-Y. Jen,Ramesh B. Laghumavarapu,Diana L. Huffaker,Xiaoyang Zhu +5 more
TL;DR: In this article, a femtosecond spectral interferometry technique for second-harmonic generation with time, energy, and phase resolution is presented. But the authors do not consider the effect of interfacial contributions to the measured secondharmonic signal.
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High‐Optical‐Quality Blends of Anionic Polymethine Salts and Polycarbonate with Enhanced Third‐Order Non‐linearities for Silicon‐Organic Hybrid Devices
Zhong'an Li,Yang Liu,Hyeongeu Kim,Joel M. Hales,Sei-Hum Jang,Jingdong Luo,Tom Baehr-Jones,Michael Hochberg,Seth R. Marder,Joseph W. Perry,Alex K.-Y. Jen +10 more
TL;DR: A series of anionic polymethine dyes with different aromatic counterions are prepared to improve their compatibility as guests in an amorphous polycarbonate host, and may be attractive candidates for all-optical signal-processing applications.
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Electrooptic Polymer Modulator With Single-Mode to Multimode Waveguide Transitions
Christopher T. DeRose,David L. Mathine,Yasufumi Enami,Robert A. Norwood,Jingdong Luo,Alex K.-Y. Jen,N. Peyghambarian +6 more
TL;DR: In this paper, the authors used grayscale lithography to create refractive index (RI) tapers in an electrooptic (EO) polymer modulator, which were used to convert a passive single-mode photobleached polymer waveguide to the fundamental mode of an unbleached, active multimode polyamide (PMP) waveguide.