title: Temperature-independent pitch invariance in cholesteric liquid crystal.
abstract: We report a pitch invariance in cholesteric liquid crystals (CLCs) independent of temperature by mixing two chiral dopants. One dopant tends to shorten the helical pitch of the CLC, but the other makes the pitch longer, with increasing temperatures. From an analysis of temperature dependencies of the pitch for each dopant, we determined the mixing ratio of two chiral dopants for the pitch invariance. Finally, we obtained the pitch-invariant CLCs to temperature and the helical twisting power of the mixed dopant was estimated.
authors: Kyoo Sung
authors: KS
authors: Shim
authors: Jeong Uk
authors: JU
authors: Heo
authors: Soo In
authors: SI
authors: Jo
authors: You-Jin
authors: YJ
authors: Lee
authors: Hak-Rin
authors: HR
authors: Kim
authors: Jae-Hoon
authors: JH
authors: Kim
authors: Chang-Jae
authors: CJ
authors: Yu