Electro-optical properties and(E,F) phase diagram of fluorinated chiral smectic liquid crystals  

作　　者：R Zgueb H Dhaouadi T Othman 

机构地区：[1]Universite Tunis El-Manar, Faculte des Sciences de Tunis, Laboratoire de physique de la matiere molle et de modelisation electromagnetique (LP3ME), Campus Universitaire Farhat Hached 2092 Tunis Tunisie

出　　处：《Chinese Physics B》2018年第10期570-577,共8页中国物理B（英文版）

摘　　要：Fluorinated smectic liquid crystals each with a biphenyl benzoate rigid core are investigated. Molecular structures of the studied compounds have difference only in fluorine position and the length of the carbon chain. Dielectric relaxation study and electro-optical measurements are carried out with the classical SSFLC geometry. The field-induced phase transitions are studied and the（E,T） phase diagram is established.Fluorinated smectic liquid crystals each with a biphenyl benzoate rigid core are investigated. Molecular structures of the studied compounds have difference only in fluorine position and the length of the carbon chain. Dielectric relaxation study and electro-optical measurements are carried out with the classical SSFLC geometry. The field-induced phase transitions are studied and the（E,T） phase diagram is established.

关 键 词：smectic liquid crystal dielectric relaxation electro-optical properties phase transition （E T）phase diagram 

分 类 号：O753.2[理学—晶体学]