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
ZnO nanorod/GaN light-emitting diodes: The origin of yellow and violet emission bands under reverse and forward bias
Xinyi Chen,Alan Man Ching Ng,Alan Man Ching Ng,Fang Fang,Yip Hang Ng,Aleksandra B. Djurišić,Hoi Lam Tam,Kok Wai Cheah,Shangjr Gwo,W. K. Chan,Patrick W. K. Fong,H. F. Lui,Charles Surya +12 more
TL;DR: In this paper, the origin of different luminescence peaks under forward and reverse bias has been studied by comparing the devices with and without ZnO and by photoluminescence and cathodoluminecence spectroscopy.
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Efficient Organic Light-Emitting Diode through Triplet Exciton Reharvesting by Employing Blended Electron Donor and Acceptor as the Emissive Layer.
TL;DR: A blended bimolecular exciplex formation was demonstrated between two individual donor and acceptor molecules, which are tris(4-carbazoyl-9-ylphenyl)amine (TCTA) and 2,4,6-tris(3'-(pyridin- 3-yl)biphenyl-3-yl)-1,3,5-triazine (Tm3PyBPZ).
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Synthesis, crystal structures, luminescence and magnetic properties of lanthanide complexes containing the 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane ligand
TL;DR: In this article, the reaction of 1,8-bis(2-hydroxybenzamido)-3,6-dioxaoctane (H2L) with lanthanide nitrates in MeCN has been investigated.
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Multifunctional Diarylamine-Substituted Benzo[k]fluoranthene Derivatives as Green Electroluminescent Emitters and Nonlinear Optical Materials
TL;DR: In this article, a new series of benzo[k]fluoranthene derivatives incorporating a diarylamine group have been synthesized and characterized, which show high thermal stability with glass transition temperatures in the range of 162−205 °C.
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Synthesis, spectroscopy, structures and photophysics of metal alkynyl complexes and polymers containing functionalized carbazole spacers
TL;DR: In this article, a new class of soluble and thermally stable group 10 platinum(II) poly-yne polymers functionalized with 9-aryl carbazole moiety trans -[-Pt(PBu 3 ) 2 C CRC C-] n (R=",9-arylcarbazole-3,6-diyl; aryl=", p -methoxyphenyl, p -chlorophenyl) were prepared in good yields by the polycondensation polymerization of trans-[PtCl 2 (PBu3 ) 2