文献类型：期刊文献

英文题名：Terahertz absorption spectra and potential energy distribution of liquid crystals

作者：Chen, Zezhang[1,2];Jiang, Yurong[1];Jiang, Lulu[1];Ma, Heng[1]

第一作者：陈泽章;Chen, Zezhang

通讯作者：Ma, H[1]

机构：[1]Henan Normal Univ, Coll Phys & Elect Engn, Xinxiang 453007, Peoples R China;[2]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Peoples R China

第一机构：Henan Normal Univ, Coll Phys & Elect Engn, Xinxiang 453007, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Coll Phys & Elect Engn, Xinxiang 453007, Peoples R China.

年份：2016

卷号：153

起止页码：741-745

外文期刊名：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

收录：;EI(收录号：20154201397700);Scopus(收录号：2-s2.0-84944089036);WOS:【SCI-EXPANDED(收录号:WOS:000365360700099)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 11074066).

语种：英文

外文关键词：LCs; THz; Absorption spectra; DFT; Vibration assignment; PED

摘要：In this work, the terahertz (THz) absorption spectra of a set of nematic liquid crystals were studied using the density functional theories (DFT). An accurate assignment of the vibrational modes corresponding to absorption frequencies were performed using potential energy distribution (PED) in a frequency range of 0-3 THz. The impacts of different core structures on THz absorption spectra were discussed. The results indicate that scope of application must be considered in the LC-based THz device designing. This proposed work may give a useful suggestion on the design of novel liquid crystal material in THz wave. (C) 2015 Elsevier B.V. All rights reserved.