Photoreactive self-assembled monolayer for the stabilization of tilt orientation of a director in vertically aligned nematic liquid crystals | Zendy

Su Yeon Oh | Zendy; ShinWoong Kang | Zendy

Open Access

Photoreactive self-assembled monolayer for the stabilization of tilt orientation of a director in vertically aligned nematic liquid crystals

Author(s) -

Su Yeon Oh,

ShinWoong Kang

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.031367

Subject(s) - liquid crystal , homeotropic alignment , materials science , tilt (camera) , monolayer , optics , liquid crystal display , electric field , orientation (vector space) , optoelectronics , nanotechnology , physics , mechanical engineering , geometry , mathematics , quantum mechanics , engineering

Photo-reactive self-assembled monolayer (PR-SAM) is employed to mediate alignment of liquid crystals (LC) and stabilize the tilt orientation of a nematic director for a vertically aligned liquid crystal. Bifunctional PR-SAM formed by silane coupling reaction to oxide surfaces efficiently induces a homeotropic alignment and stabilizes LC director by the photo-polymerization under applied electric field. As a result, the substantial enhancement of electro-optic performance has been achieved after the PR-SAM assisted stabilization of tilt orientation of director. This approach for pretilt stabilization has multifarious advantages over the conventional PSVA.

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