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Multi-layered carbon nanotube UV polariser for photo-alignment of liquid crystals

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Title
Multi-layered carbon nanotube UV polariser for photo-alignment of liquid crystals
Author(s)
Hoon Sub Shin; Ramesh Mada; Tae Hyung Kim; Jong Gil Park; Young Jin Lim; Byeong Koo Kim; Young Hee Lee; Seung Hee Lee
Subject
Carbon nanotubes, ; fringe-field switching, ; liquid crystal, ; UV polariser
Publication Date
2020-04
Journal
LIQUID CRYSTALS, v.47, no.11, pp.1604 - 1611
Publisher
TAYLOR & FRANCIS LTD
Abstract
© 2020 Informa UK Limited, trading as Taylor & Francis Group. An efficient ultraviolet (UV) polariser based on multi-layered carbon nanotubes (CNTs) which is obtained by set of CNT films attached to substrate in series with matching orientations is demonstrated. The degree of polarisation in the UV region increases with increasing number of CNT layers, reaching ~91% in the CNT polariser with 12 layers. A thin film with photoalignment polymer exposed with more than eight layers CNT polariser induces excellent homogenous liquid crystal (LC) alignment. The fringe-field switching (FFS) LC device with the photoalignment layer shows excellent electro-optics comparable to that with conventional metallic wire-grid polariser (WGP). The work proposes cost-effective novel polariser replacing WGP for photoalignment of LC
URI
https://pr.ibs.re.kr/handle/8788114/8672
DOI
10.1080/02678292.2020.1751318
ISSN
0267-8292
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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