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
收藏
页码：76 / 82
页数：7
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