期刊
EUROPEAN POLYMER JOURNAL
卷 46, 期 11, 页码 2199-2205出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2010.08.002
关键词
Electrochemical polymerization; Multichromism; Low band gap polymer; Optoelectronic properties; Spectroelectrochernisty
资金
- TUBA
- TUBITAK-Department of Science
A new it-conjugated monomer was synthesized which contains an electron-donating unit 3 4-ethylenedioxythiophene and electron withdrawing quinoxaline-based heterocycle to examine the effects of imine unit on the optoelectronic and redox properties of the resulting polymer Electroactivity of monomer and electrochemical redox behavior of its polymer were investigated by cyclic voltammetry An irreversible anodic wave at +0 85 V vs Ag wire reference electrode corresponding to the monomer oxidation was observed Spectroelectrochemical analysis revealed that the neutral polymer has an absorbance at 820 nm The band gap of the polymer was determined as 1 0 eV from the onset of the pi-pi* transition The polymer shows multi-colored electrochromic behavior with five distinct states brick red (-03 V) orange (+0 4 V) brown (+0 7 V) green (+0 85 V) gray (+1 2 V) The polymer revealed 34% optical contrast at 460 nm and an excellent optical contrast of 99% in the NIR region (C) 2010 Elsevier Ltd All rights reserved
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据