K
K. Y. Cheung
Researcher at University of Hong Kong
Publications - 26
Citations - 1409
K. Y. Cheung is an academic researcher from University of Hong Kong. The author has contributed to research in topics: Polymer solar cell & Hybrid solar cell. The author has an hindex of 13, co-authored 26 publications receiving 1365 citations. Previous affiliations of K. Y. Cheung include Hong Kong Baptist University.
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Journal ArticleDOI
Metallated conjugated polymers as a new avenue towards high-efficiency polymer solar cells
Wai Yeung Wong,Xing Zhu Wang,Ze He,Aleksandra B. Djurišić,Cho Tung Yip,K. Y. Cheung,Hai Wang,Chris S. K. Mak,Wai Kin Chan +8 more
TL;DR: A soluble, intensely coloured platinum metallopolyyne with a low bandgap is synthesized, which showed a power-conversion efficiency with an average of 4.1%, which clearly demonstrates the potential of metallated conjugated polymers for efficient photovoltaic devices.
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Tuning the absorption, charge transport properties, and solar cell efficiency with the number of thienyl rings in platinum-containing poly(aryleneethynylene)s.
Wai Yeung Wong,Xing-Zhu Wang,Ze He,Kwok-Kwan Chan,Aleksandra B. Djurišić,K. Y. Cheung,Cho Tung Yip,Alan Man Ching Ng,Yan Yan Xi,Chris S. K. Mak,Wai Kin Chan +10 more
TL;DR: The synthesis, characterization, and photophysics of a series of solution-processable and strongly visible-light absorbing platinum(II) polyynes containing bithiazole-oligo(thienyl) rings were presented and provides an attractive approach to developing conjugated metallopolymers offering broad solar absorptions and tunable solar cell efficiency.
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Effect of Oligothienyl Chain Length on Tuning the Solar Cell Performance in Fluorene-Based Polyplatinynes
Li Liu,Li Liu,Cheuk Lam Ho,Wai Yeung Wong,K. Y. Cheung,Man Kin Fung,Wai Ting Lam,Aleksandra B. Djurišić,Wai Kin Chan +8 more
TL;DR: In this article, a series of solution-processable and strongly visible-light absorbing polyplatinynes containing oligothienyl-fluorene ring hybrids were synthesized and characterized.
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Long K-Doped Titania and Titanate Nanowires on Ti Foil and FTO/Quartz Substrates for Solar-Cell Applications
TL;DR: In this article, the influence of fabrication conditions on nanowire structure and morphology is investigated, and it is shown that the presence of potassium is essential for nanowires formation.
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Very-low-bandgap metallopolyynes of platinum with a cyclopentadithiophenone ring for organic solar cells absorbing down to the near-infrared spectral region
Xing Zhu Wang,Xing Zhu Wang,Qiwei Wang,Lei Yan,Wai Yeung Wong,K. Y. Cheung,K. Y. Cheung,Annie Ng,Aleksandra B. Djurišić,Wai Kin Chan +9 more
TL;DR: Two solution-processable metallopolyynes of platinum functionalized with the electron-deficient 4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one spacer and their model molecular complexes were synthesized and developed for the applications of polymer solar cells, and represent the lowest optical bandgap yet reported for platinum(II) metalopolyynes to date.