A new electrochromic material from an indole derivative and its application in high-quality electrochromic devices

被引：89

作者：

Nie, Guangming ^{[1
]}

Zhou, Liangjie ^{[1
]}

Guo, Qingfu ^{[1
]}

Zhang, Shusheng ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Minist Educ, Key Lab Ecochem Engn, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 01期

关键词：

Conducting polymer; Spectroelectrochemistry; Electrochromic device; Polyindole; Indole-6-carboxylic acid; POLYMERS; STATE; ACID); FILM;

D O I：

10.1016/j.elecom.2009.11.013

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel electrochromic material, poly(indole-6-carboxylic acid) (Pin), and its application in electrochromic devices (ECDs) are discussed. Pin was switched between yellow in the reduced state and green in the oxidized state. Electrochromic switching of Pin film shows that it has fast switching time and high optical contrast. ECD based on Pin and poly(3,4-ethylenedioxythiophene) (PEDOT) was also fabricated and characterized. The response time of this device was found to be 1.0 s and the optical contrast was 45%. The coloration efficiency (CE) was calculated to be 510 cm(2) C-1. Clear change from green (neutral) to blue-violet color (oxidized) of ECD is demonstrated with robust cycle life. These results provide an avenue for applications of polyindole family in electrochromic devices. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：160 / 163

页数：4

共 21 条

[1] Electrochemical properties and Fourier transform-infrared spectroscopic investigations of the redox behaviour of poly(indole-5-carboxylic acid) in LiClO4-acetonitrile solutions [J].