Improvement of Electrical Conductivity of Poly(3,4-ethylenedioxythiophene) (PEDOT) Thin Film

被引：8

作者：

Yu, Seong Hun ^{[1
]}

Lee, Jae Hak ^{[1
]}

Choi, Myong Soo ^{[1
]}

Park, Jong Hyeok ^{[1
,2
]}

Yoo, Pil J. ^{[1
,2
]}

Lee, Jun Young ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, Gyeonggi Do, South Korea

[2] SKKU Adv Inst NanoTechnol SAINT, Suwon, South Korea

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2013年 / 580卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

in-situ polymerization; PEDOT; doping level; Co-dopant; electrical conductivity; STABILITY; 3,4-ETHYLENEDIOXYTHIOPHENE; POLYANILINE; SOLVENTS;

D O I：

10.1080/15421406.2013.804761

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to improve the electrical conductivity of in-situ polymerized poly(3,4-ethylenedioxythiophene) (PEDOT) thin film, we investigated the effect of doping level and co-dopant on the electrical conductivity. Doping level of PEDOT thin film was determined by X-ray photoelectron spectroscopy (XPS) and it was found that the higher doping level led to higher electrical conductivity. We also used several kinds of co-dopants such as methanesulfunic acid, naphthalenesulfonic acid and p-toluenesulfonic acid to increase the conductivity of PEDOT. When methanesulfonic acid was used as co-dopant, electrical conductivity of PEDOT thin film increased up to 1,500 S/cm. It is considered that the enhanced conductivity resulted from higher interchain conduction or more expanded chain structure due to small dopant size of methanesulfunic acid.

引用

页码：76 / 82

页数：7

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