A novel conducting polymer based on terthienyl system bearing strong electron-withdrawing substituents and its electrochromic device application

被引：24

作者：

Asil, Demet ^{[1
]}

Cihaner, Atilla ^{[2
]}

Algi, Fatih ^{[1
]}

Onal, Ahmet M. ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey

[2] Atilim Univ, Fac Engn, Chem Grp, TR-06836 Ankara, Turkey

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2008年 / 618卷 / 1-2期

关键词：

electrochemical polymerization; electrochromic device; conducting polymers; polythiophene; electron-withdrawing substituents;

D O I：

10.1016/j.jelechem.2008.02.027

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel conducting polymer bearing strong electron-withdrawing substituents (EWS) directly attached to the 3,4-positions of the thiophene ring was synthesized by electrochemical polymerization of diethyl 2,5-di(thiophen-2-yl)thiophene-3,4-dicarboxylate (SSS-Diester). The polymer (PSSS-Diester) was characterized by cyclic voltammetry, FT-IR and UV-vis spectroscopy. The polymer has a reversible redox process and demonstrates a stable electrochromic behavior: reddish orange in the neutral state, brown in the intermediate state and green in the oxidized state. Optical density and response time of the dual-type electrochromic device based on PSSS-Diester were found to be 0.23 and 0.6 s at 623 nm, respectively. It is also noteworthy that the device shows good environmental and redox stability (i.e. 94% of the optical activity of the device retained after 500th switch). (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：87 / 93

页数：7

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