2B07 2-Phenylnaphthalene誘導体液晶材料の合成と光伝導性(2) : 室温での高速電子伝導

概要

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We have synthesized several liquid crystalline 2-(4'-alkyl phenyl)-6-alkyl naphthalene derivatives and characterized their phase transition behaviors and photoconductive properties. These materials exhibited SmA, SmB and SmE phases, which is same as 6-alkoxy naphthalene analogues, but their liquid crystalline temperature ranges were fairly lower. Especially 2-(4'-octyl-phenyl)-6-butyl- naphthalene (8-PNP-4) exhibited liquid crystalline phase under room temperature. Electronic transport of positive carriers was observed and their mobility was on the order of 10<-2>cm^2/Vs(in the SmE). This was the same result with that of 6-alkoxy naphthalene analogues and indicates that molecular order in smectic layer plays a dominant role on the carrier transport, as far as the core moiety is same.
日本液晶学会の論文
2001-09-24