Preparation and electrochromic properties of spin self-assembled polyelectrolyte multilayer films composed of PEDOT:PSS and PAH

被引：9
|
作者：
Nah, Yoon-Chae [1 ]
Choi, Won San [2 ]
Kim, Dong-Yu [1 ]
机构：
[1] GIST, Dept Mat Sci & Engn, Heeger Ctr Adv Mat, Kwangju 500712, South Korea
[2] Korea Basic Sci Inst, Jeonju 561756, South Korea
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2008年 / 92卷 / 12期
关键词：
Polyelectrolytes; Spin self-assembly; Multilayer films; Electrochromic properties;
D O I：
10.1016/j.solmat.2008.07.001
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Polyelectrolyte multilayer films composed of a polycation (poly(allylamine hydrochloride) PAH) and a polyanion (poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) PEDOT:PSS) were prepared by a spin self-assembly method, and their electrochemical and electrochromic properties were investigated. The change in the surface charge and the optical absorption spectra of the multilayer films revealed that sequential deposition of polyelectrolyte was successfully achieved during the spin self-assembly. The electrochromic properties of 20-bilayered PAH/PEDOT:PSS were also investigated. The response time for the coloring and bleaching processes was 6.2 and 2.5 s, respectively, and the coloration efficiency was 199.3 cm(2)/C. These results indicate that a spin self-assembly process could be a viable alternative for the fabrication of electrochromic devices. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1547 / 1551
页数：5
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