K
Kok Wai Cheah
Researcher at Hong Kong Baptist University
Publications - 273
Citations - 11751
Kok Wai Cheah is an academic researcher from Hong Kong Baptist University. The author has contributed to research in topics: Photoluminescence & OLED. The author has an hindex of 48, co-authored 270 publications receiving 10627 citations. Previous affiliations of Kok Wai Cheah include City University of Hong Kong & East China University of Science and Technology.
Papers
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Journal ArticleDOI
New blue host materials based on anthracene-containing dibenzothiophene
Lei Wang,Lei Wang,Zhi Yong Wu,Wai Yeung Wong,Wai Yeung Wong,Kok Wai Cheah,Hong Huang,Chin H. Chen +7 more
TL;DR: A series of novel host blue-emitting materials based on anthracene have been synthesized and investigated in this article, in which a π -electron-rich dibenzothiophene moiety was introduced as a side group to fine adjust the HOMO/LUMO levels of the Anthracene and enhance the ability of hole-transport and electron-injection.
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Study of Sequential Dexter Energy Transfer in High Efficient Phosphorescent White Organic Light-Emitting Diodes with Single Emissive Layer
TL;DR: The dopant concentrations of FIrpic, Ir(ppy)3 and Ir(piq)3 were adjusted and optimized to facilitate the preferred energy transfer processes attaining both the best luminous efficiency and CIE color coordinates.
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Emission characteristics of inorganic/organic hybrid white-light phosphor
TL;DR: A white-light light-emitting diode (LED) was successfully fabricated by converting near-UV LED emission (390-420nm) with a new inorganic/organic hybrid phosphor as mentioned in this paper.
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Synthesis, Characterization and Near-Infrared Photoluminescence of Monoporphyrinate Lanthanide Complexes Containing an Anionic Tripodal Ligand
Hongshan He,Hongshan He,Jianping Guo,Zhixin Zhao,Wai-Kwok Wong,Wai Yeung Wong,Wing-Kit Lo,King Fai Li,L. Luo,Kok Wai Cheah +9 more
TL;DR: In this article, neutral stable complexes of ytterbium (III) and erbium(III) coordinated by anionic hydridotris(pyrazol-1-yl)borate and meso-tetraphenylporphyrinate, and its derivatives with different substituents in the para position of the phenyl groups, were prepared and characterized.
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Controlling the phase of optical nonlinearity with plasmonic metasurfaces
TL;DR: In this article, the authors summarize the latest progress in controlling the local phase of nonlinearity with plasmonic metasurfaces, with a focus on nonlinear geometric Berry phase and wavefront engineering.