K
Kam Sing Wong
Researcher at Hong Kong University of Science and Technology
Publications - 346
Citations - 17539
Kam Sing Wong is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Photoluminescence & Perovskite (structure). The author has an hindex of 61, co-authored 310 publications receiving 13772 citations. Previous affiliations of Kam Sing Wong include University of Utah & University of Oxford.
Papers
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Journal ArticleDOI
Twisted Intramolecular Charge Transfer and Aggregation-Induced Emission of BODIPY Derivatives
Rongrong Hu,Erik Lager,Angelica Aguilar-Aguilar,Jianzhao Liu,Jacky Wing Yip Lam,Herman H. Y. Sung,Ian D. Williams,Yongchun Zhong,Kam Sing Wong,Eduardo Peña-Cabrera,Ben Zhong Tang +10 more
TL;DR: Boron dipyrromethene (BODIPY) derivatives 1 and 2 consisting of donor and acceptor units with dual photoresponses to solvent polarity and luminogen aggregation are developed through taking advantage of twisted intramolecular charge transfer (TICT) and aggregation-induced emission (AIE) processes as discussed by the authors.
Journal ArticleDOI
Defect emissions in ZnO nanostructures
Aleksandra B. Djurišić,Yu Hang Leung,KH Tam,Y. F. Hsu,Lu Ding,Weikun Ge,Y. C. Zhong,Kam Sing Wong,W. K. Chan,Hoi Lam Tam,Kok Wai Cheah,Wai Ming Kwok,David Lee Phillips +12 more
TL;DR: In this paper, defect emissions exhibited a strong dependence on the temperature and excitation wavelength, with some defect emissions observable only at low temperatures and for certain excitation wavelengths, while green emission was not significantly affected by annealing.
Journal ArticleDOI
Pinhole-Free and Surface-Nanostructured NiOx Film by Room-Temperature Solution Process for High-Performance Flexible Perovskite Solar Cells with Good Stability and Reproducibility
Hong Zhang,Jiaqi Cheng,Francis Lin,Hexiang He,Jian Mao,Kam Sing Wong,Alex K.-Y. Jen,Wallace C. H. Choy +7 more
TL;DR: The flawless and surface-nanostructured NiOx film can make the interfacial recombination and monomolecular Shockley-Read-Hall recombination of PVSC reduce and improve the hole extraction and thus PVSC performances, which contributes to the evolution of flexible PVSCs with simple fabrication process and high device performances.
Journal ArticleDOI
Delocalization of exciton and electron wavefunction in non-fullerene acceptor molecules enables efficient organic solar cells
Guichuan Zhang,Xian Kai Chen,Xian Kai Chen,Jingyang Xiao,Philip C. Y. Chow,Minrun Ren,Grit Kupgan,Grit Kupgan,Xuechen Jiao,Xuechen Jiao,Xuechen Jiao,Christopher C. S. Chan,Xiaoyan Du,Ruoxi Xia,Ziming Chen,Jun Yuan,Yunqiang Zhang,Shoufeng Zhang,Yidan Liu,Yingping Zou,He Yan,Kam Sing Wong,Veaceslav Coropceanu,Veaceslav Coropceanu,Ning Li,Ning Li,Christoph J. Brabec,Jean-Luc Brédas,Jean-Luc Brédas,Hin-Lap Yip,Yong Cao +30 more
TL;DR: The delocalization of exciton and electron wavefunction due to strong π-π packing of Y6 is the key for the high performance of this state-of-the-art OSC system.
Journal ArticleDOI
Creation of highly efficient solid emitter by decorating pyrene core with AIE-active tetraphenylethene peripheries
Zujin Zhao,Shuming Chen,Jacky Wing Yip Lam,Ping Lu,Yongchun Zhong,Kam Sing Wong,Hoi Sing Kwok,Ben Zhong Tang,Ben Zhong Tang +8 more
TL;DR: Pyrene, a faint fluorophore in the solid state, is transformed into a bright emitter by decorating it with tetraphenylethene units; the new luminogen is thermally and morphologically stable and its light-emitting diode shows excellent performance.