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
Energy band and acceptor binding energy of GaN and AlxGa1-xN
TL;DR: In this article, the binding energies of donor and acceptor for wurtzite GaN are 20 and 131, 97 meV, respectively, which are inconsistent with the recent experimental results.
Journal Article
Fabrication of Large Area Plasmonic Grating using Laser Interference
TL;DR: In this article, a large area, 10 × 10 mm2, ruled grating was fabricated in the metal/dielectric interface that has enhanced plasmonic coupling efficiency.
Journal ArticleDOI
Hexagonal Lattice Photonic Crystal in Active Metallic Microcavity
Hoi Lam Tam,Rupert Huber,King Fai Li,Wing-Han Wong,Y. B. Pun,Shu Kong So,Jian Bai Xia,Kok Wai Cheah +7 more
TL;DR: A hexagonal lattice photonic crystal was fabricated inside the metallic microcavity and a thin film of Alq3 was incorporated inside the textured cavity as an active medium as mentioned in this paper.
Proceedings ArticleDOI
Fluorescent Dye and OLED Based Plasmonic Dark Field Microscopy
TL;DR: In this article, the authors proposed a compact, low-cost and alignment-free plasmonic dark field microscopy and demonstrated its high contrast imaging capability through utilizing chip-scale integrated plasmic structures to substitute for conventional condenser optics.
Proceedings ArticleDOI
Influence of Layer Thickness to the Emission Spectra in Microcavity Organic Light Emitting Diodes
C. Y. Kwong,Aleksandra B. Djurišić,C. H. Cheung,J. Chan,Aleksandar D. Rakić,Hoi Lam Tam,Kok Wai Cheah,Zhengtong Liu,Wilson Y. K. Chan,P. C. Chui +9 more
TL;DR: In this paper, the authors have fabricated microcavity organic light emitting diodes (OLEDs) with widely used organic materials, such as N,N'-di(naphthalene-1-yl)-N,N-diphenylbenzidine (NPB) as hole transport layer and tris (8-hydroxyquinoline) (Alq) as emitting and electron transporting layer.