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P‐110: Stabilizing Blue Phase Liquid Crystal with Photo‐Reactive Chiral Mesogen
Author(s) -
Noh Seong Cheol,
Park NoHyun,
Park Hye Ryung,
Nayek Prasenjit,
Kang Shin Woong,
Lee Myoung Hoon,
Gong MyoungSeon,
Lee Seung Hee
Publication year - 2014
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2014.tb00368.x
Subject(s) - liquid crystal , mesogen , dopant , materials science , phase (matter) , monomer , doping , crystallography , photochemistry , organic chemistry , chemistry , liquid crystalline , polymer , optoelectronics , composite material
In this paper, we investigated effects of stabilizing blue phase liquid crystal using only reactive chiral dopant, without any other monomers and photoinitiators. First, photo‐inactive chiral dopants with high helical twist power (~166μm −1 ) synthesized by us are doped into host nematic LC to induce blue phase and then, the photo‐reactive chiral dopant is added to stabilize double twist cylinder. After UV irradiation, BP temperature range is clearly extended compared with pure BP mixture and hysteresis in V‐T curve is also dramatically decreased.