SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE SEMICONDUCTING MATERIALS, DIALKYL-2-PHENYLNAPHTHALENE DERIVATIVES--MESOMORPHIC BEHAVIOR AND CHARGE CARRIER

摘要

For establishment of high electronic charge carrier transport, at ambient temperature, dialkyl derivatives of 2-phenylnaphthalene have been synthesized and characterized their liquid crystalline behaviors and photoelectrical properties. These materials exhibited, smectic mesophases (Smectic A, B and. E phases), at fairly low temperature range extended, down below ambient, temperature. Fast electronic transport of positive carriers was observed in SmE phase of 3-(4'-octylphenyl)-6-butylnaphthalene at 30 deg C, whose mobility was over 10~(-2) cm~2/Vs.