Matched elastic constants for a perfect helical planar state and a fast   switching time in chiral nematic liquid crystals

doi:10.1039/c6sm00546b

CORC > 北京大学 > 化学与分子工程学院

	Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals
	Yu, Meina ; Zhou, Xiaochen ; Jiang, Jinghua ; Yang, Huai ; Yang, Deng-Ke
刊名	SOFT MATTER
	2016
关键词	TRANSIENT-PLANAR MAGNETIC FIELD TRANSITION PHASE DISTORTION DIMERS NMR
DOI	10.1039/c6sm00546b
英文摘要	Chiral nematic liquid crystals possess a self-assembled helical structure and exhibit unique selective reflection in visible and infrared light regions. Their optical properties can be electrically tuned. The tuning involves the unwinding and restoring of the helical structure. We carried out an experimental study on the mechanism of the restoration of the helical structure. We constructed chiral nematic liquid crystals with variable elastic constants by doping bent-dimers and studied their impact on the restoration. With matched twist and bend elastic constants, the helical structure can be restored dramatically fast from the field-induced homeotropic state. Furthermore, defects can be eliminated to produce a perfect planar state which exhibits high selective reflection.; SCI(E); EI; PubMed; ARTICLE; dyang@kent.edu; 19; 4483-4488; 12
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/433960]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Yu, Meina,Zhou, Xiaochen,Jiang, Jinghua,et al. Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals[J]. SOFT MATTER,2016.
APA	Yu, Meina,Zhou, Xiaochen,Jiang, Jinghua,Yang, Huai,&Yang, Deng-Ke.(2016).Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals.SOFT MATTER.
MLA	Yu, Meina,et al."Matched elastic constants for a perfect helical planar state and a fast switching time in chiral nematic liquid crystals".SOFT MATTER (2016).