Nonlinear optical properties and memory effects of the azo polymers carrying different substituents

被引：46

作者：

Li, Najun ^{[1
]}

Lu, Jianmei ^{[1
]}

Li, Hua ^{[1
]}

Kang, En-Tang ^{[2
]}

机构：

[1] Suzhou Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Jiangsu, Peoples R China

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore

来源：

DYES AND PIGMENTS | 2011年 / 88卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Azo; Polymer; Substituent; Nonlinear optical; Electric memory; Device; TRANSFER RADICAL POLYMERIZATION; SIDE-CHAIN POLYMERS; NLO PROPERTIES; AZOBENZENE; CHROMOPHORES; IRRADIATION; SYSTEMS; STORAGE;

D O I：

10.1016/j.dyepig.2010.04.010

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The third-order nonlinear optical properties and electric memory behavior of azobenzene polymers were influenced by different substituents. The nonlinear optical coefficients of polymer films measured using the Z-scan technique revealed that the polymers with different substituents exhibited different nonlinear absorption The reversibility of sandwich memory devices based on the azobenzene polymers was dependant on the terminal substituent on the azobenzene chromophore. Polymers with electron-accepting terminal moieties in the azobenzene pendant showed write-once-read-many-times memory whereas the polymer that contained electron-donating moieties displayed a FLASH-type (rewritable) memory. (C) 2010 Elsevier Ltd All rights reserved.

引用

页码：18 / 24

页数：7

共 31 条

[1] Electric field-induced isomerization of azobenzene by STM [J].