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
High Efficiency and Small Roll-Off Electrophosphorescence from a New Iridium Complex with Well-Matched Energy Levels†
Z. Q. Gao,Bao Xiu Mi,Hoi Lam Tam,Kok Wai Cheah,Chin H. Chen,Man Shing Wong,Shuit-Tong Lee,Chun-Sing Lee +7 more
TL;DR: In this article, a new homoleptic cyclometalated iridium triplet green emitter based on a phenylpyridazine ligand was reported, which achieved a peak efficiency of 8.5 % for blue, 19.2 % for green, and 11 % for red.
Journal ArticleDOI
Strong Luminescent Iridium Complexes with CˆN=N Structure in Ligands and Their Potential in Efficient and Thermally Stable Phosphorescent OLEDs
Bao Xiu Mi,Pengfei Wang,Zhi Qiang Gao,Chun-Sing Lee,Shuit-Tong Lee,Hui Ling Hong,Xiao-Ming Chen,Man Shing Wong,Ping Fang Xia,Kok Wai Cheah,Chin H. Chen,Wei Huang +11 more
TL;DR: In this article, the authors proposed a method to solve the problem of super-diamond and advanced films in Nanjing University of Posts and Telecommunications (NJUPT) and City University of Hong Kong.
Journal ArticleDOI
A bioaccumulative cyclometalated platinum(II) complex with two-photon-induced emission for live cell imaging.
Chi Kin Koo,Ka-Leung Wong,Cornelia Wing Yin Man,Yun Wah Lam,Leo K.Y. So,Hoi Lam Tam,Sai Wah Tsao,Kok Wai Cheah,Kai-Chung Lau,Yangyi Yang,Jin Can Chen,Michael H.W. Lam +11 more
TL;DR: Its bioaccumulation properties enabled time-lapse imaging of the internalization process of the dye into living cells, and Cytotoxicity of [Pt(L)Cl] to both tested cell lines was low, according to MTT assays, even at loadings as high as 20 times the dose concentration for imaging for 6 h.
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Biocompatible CdSe quantum dot-based photosensitizer under two-photon excitation for photodynamic therapy
Zu-De Qi,Zu-De Qi,Dong-Wei Li,Peng Jiang,Feng-Lei Jiang,Yue-Sheng Li,Yi Liu,Wai-Kwok Wong,Kok Wai Cheah +8 more
TL;DR: In this article, an enhanced photosensitizer combining biocompatible CdSe quantum dots (QDs) with water-soluble porphyrin was synthesized by a facile method.
Journal ArticleDOI
Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities
Shumei Chen,Shumei Chen,Franziska Zeuner,Martin Weismann,Bernhard Reineke,Guixin Li,Ventsislav K. Valev,Kok Wai Cheah,Nicolae C. Panoiu,Thomas Zentgraf,Shuang Zhang +10 more
TL;DR: The study opens up new routes for designing chip-type biosensing platform, which may allow for highly sensitive detection of bio- and chemical molecules with weak chirality.