Capacitive Techniques to Monitor of Anchoring Energy for Liquid Crystal Sensors

被引：13

作者：

Namkung, Jun ^{[1
]}

Zou, Yang ^{[1
]}

Abu-Abed, Alaeddin ^{[2
]}

Lindquist, Robert G. ^{[1
]}

机构：

[1] Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA

[2] Univ Cent Oklahoma, Dept Engn & Phys, Edmond, OK 73034 USA

来源：

IEEE SENSORS JOURNAL | 2010年 / 10卷 / 09期

基金：

美国国家科学基金会;

关键词：

Anchoring energy; liquid crystal; SAMs; sensors; SURFACES; TRANSDUCTION;

D O I：

10.1109/JSEN.2009.2038278

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Using the orientation order of the liquid crystal molecules in chemical and biological sensors has been widely investigated. In this paper, a capacitive technique to monitor the functionality of anchoring energy in liquid crystal alignment layers is presented. Sensing changes in the anchoring energy of a liquid crystal film can significantly improve sensitivity of liquid crystal based sensors. The method and theory is presented. Preliminary experimental results are provided using UV irradiation and the concentration dependence of cetyltrimethyl-ammonium bromide (CTAB) self-assembled monolayer to alter the anchoring energy of known alignment structures.

引用

页码：1479 / 1485

页数：7

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