Effects of various imidazole-based weak bases and surfactant on the conductivity and transparency of poly(3,4-ethylenedioxythiophene) films

被引：14

作者：

Choi, Jong Seob ^{[1
]}

Yim, Jin-Heong ^{[1
]}

Kim, Dong-Won ^{[2
]}

Jeon, Jong-Ki ^{[3
]}

Ko, Young Soo ^{[3
]}

Kim, Youngjo ^{[4
]}

机构：

[1] Kongju Natl Univ, Div Adv Mat Engn, Kong Ju 314701, Chungnam, South Korea

[2] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea

[3] Kongju Natl Univ, Dept Chem Engn, Kong Ju 314701, Chungnam, South Korea

[4] Chungbuk Natl Univ, Dept Chem, Cheongju 361763, Chungbuk, South Korea

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 23-24期

关键词：

Poly(3,4-ethylenedioxythiophene); Imidazole derivatives; Surfactant; Surface resistance; Transparency; Conductivity; Conductive film; 3,4-ETHYLENEDIOXYTHIOPHENE; POLYMERIZATION; DEVICES;

D O I：

10.1016/j.synthmet.2009.08.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Poly(3,4-ethylenedioxythiophene) (PEDOT)-based conductive thin films with improved transparency and surface resistance can be prepared by using adequate weak bases and non-ionic surfactants. Among the imidazole-based weak bases, 2-ethyl-4-methyl-substituted imidazole showed the best performance in terms of surface resistance and transparency. It is speculated that 2-ethyl-4-methyl-imidazole causes reduced particle size because polymerization kinetics are retarded by the electron donating effect of ethyl and/or methyl groups in the imidazole ring. Addition of Triton X-100 may stabilize nanoscopic PEDOT particles in the coating solution resulting in low surface resistance (172 Omega/rectangle) and enhanced transparency (>90%) of the PEDOT film. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2506 / 2511

页数：6

共 18 条

[1] Structural aspects of electrochemical doping and dedoping of poly(3,4-ethylenedioxythiophene) [J].