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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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Optical functions of tris (8-hydroxyquinoline) aluminum (Alq3) by spectroscopic ellipsometry

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.
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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.
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Synthesis, thermal stability, light emission, and fluorescent photopatterning of poly(diphenylacetylene)s carrying naphthalene pendant groups

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.