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Effects of carbon nanotubes on electro-optic characteristics in vertically aligned liquid crystal display

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Title
Effects of carbon nanotubes on electro-optic characteristics in vertically aligned liquid crystal display
Author(s)
Young Jin Lim; Surjya Sarathi; Weiwei Tie; Hye Ryung Park; Young Hee Lee; Seung Hee Lee
Publication Date
2013-09
Journal
LIQUID CRYSTALS, v.40, no.9, pp.1202 - 1208
Publisher
TAYLOR FRANCIS LTD
Abstract
Size- and aggregation-controlled dispersion of thin multiwalled carbon nanotube (t-MWCNT) in negative dielectric anisotropic liquid crystal (LC) material exhibits remarkable improvement in electro-optic response time in vertically aligned LC cells. The physical properties such as birefringence, dielectric anisotropy and clearing temperature of nanotube dispersed LC material appear to be almost invariant to that of pristine LC. Nevertheless, the response time shows noticeable improvement, especially in decaying time associated with transition from maximum to minimum transmission, hence important for faster switching LC devices. The effect is attributed to that vertically aligned t-MWCNTs along the field direction play role of vertical alignment layer between LCs, consequently resulting in increased bend elastic constant of LCs.
URI
https://pr.ibs.re.kr/handle/8788114/1258
ISSN
0267-8292
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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