H
Hoi Sing Kwok
Researcher at Hong Kong University of Science and Technology
Publications - 1207
Citations - 32982
Hoi Sing Kwok is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Liquid crystal & Thin-film transistor. The author has an hindex of 77, co-authored 1165 publications receiving 29448 citations. Previous affiliations of Hoi Sing Kwok include University of Hong Kong & University of California, Berkeley.
Papers
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Journal ArticleDOI
Optical functions of tris (8-hydroxyquinoline) aluminum (Alq3) by spectroscopic ellipsometry
Aleksandra B. Djurišić,C. Y. Kwong,Tszwai Lau,Eric Herbert M. Li,Zhengtong Liu,Hoi Sing Kwok,Lillian Sze Man Lam,Wai Kin Chan +7 more
TL;DR: In this paper, the optical functions of tris (8-hydroxyquinoline) aluminum (Alq3) have been studied in the spectral range from 1.55 eV to 5 eV using spectroscopic ellipsometry.
Journal ArticleDOI
Fluorination-Enabled Monolithic Integration of Enhancement- and Depletion-Mode Indium-Gallium-Zinc Oxide TFTs
TL;DR: In this paper, the channel regions of select TFTs in a circuit were fluorinated and the difference between the threshold voltage of an EM and a DM TFT can be simply and precisely modulated by controlling the heat-treatment temperature and duration.
Patent
Fast switchable and high diffraction efficiency grating ferroelectric liquid crystal cell
TL;DR: In this paper, a liquid crystal cell structure is provided, which includes two polarizers; and a liquid-crystal diffractive light modulating cell placed between the two polarizer positions, and the two transparent substrates are configured to provide multiple alignment domains in the ferroelectric liquid crystals with a planar surface orientation.
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Liquid Crystal Alignment Layer With Controllable Anchoring Energies
TL;DR: In this paper, a liquid crystal alignment layer with controllable polar and azimuthal anchoring energies is presented, which is based on a nanostructured surface formed by mixing a conventional polyimide and a nonaligning polymer.
Journal ArticleDOI
Synthesis, thermal stability, light emission, and fluorescent photopatterning of poly(diphenylacetylene)s carrying naphthalene pendant groups
Charles Chi Wang Law,Jacky Wing Yip Lam,Anjun Qin,Yongqiang Dong,Hoi Sing Kwok,Ben Zhong Tang,Ben Zhong Tang +6 more
TL;DR: In this article, Naphthalene (Nap)-containing poly(diphenylacetylene)s with different spacer lengths were synthesized, and a multilayer EL device with a configuration of ITO/P1(8):PVK/BCP/Alq3/LiF/Al is constructed.