Electrochromic Device Containing Heptyl Viologen, PEDOT, TiO2 and TEMPO

被引：8

作者：

Gu, Yujin ^{[1
]}

Hong, Wangi

Choi, Wooseok

Park, Jun-Young

Kim, K. B.

Lee, Naesung

Seo, Yongho

机构：

[1] Sejong Univ, Fac Nanotechnol & Adv Mat Engn, HMC, Seoul 143747, South Korea

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2014年 / 161卷 / 12期

关键词：

TITANIUM-DIOXIDE; PRUSSIAN BLUE; FILMS; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); FERROCYANIDE; TRANSPARENT; PERFORMANCE; TRANSPORT; ELECTRODE; SYSTEM;

D O I：

10.1149/2.0081412jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

An electrochromic device containing heptyl viologen, poly(3,4-ethylenedioxythiophene) (PEDOT), TiO2 and 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) was fabricated. Both heptyl viologen and PEDOT are electrochromic materials with different spectra at its colored states. The transmission spectrum was measured in different voltages in a wide wavelength range from near infrared to near ultraviolet. By combining PEDOT and heptyl viologen, a high on/off contrast was obtained with almost zero transmittance in a dark state. Also, the TiO2 layer increased optical transmittance change, as it provides a large surface area where the heptyl viologen was reduced to be colored. On the other hand, the TiO2 layer did not decrease the on/off switching time. (C) 2014 The Electrochemical Society. All rights reserved.

引用

页码：H716 / H721

页数：6

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