Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications

被引：31

作者：

Le Truong, Thuy ^{[1
]}

Kim, Dong-Ouk ^{[1
]}

Lee, Youngkwan ^{[2
]}

Lee, Tae-Woo ^{[3
]}

Park, Jong Jin ^{[3
]}

Pu, Lyongsun ^{[3
]}

Nam, Jae-Do ^{[1
]}

机构：

[1] SKKU Adv Inst Nanotechnol SAINT, Dept Polymer Sci & Engn, Suwon, South Korea

[2] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, South Korea

[3] Samsung Adv Inst Technol, Yongin 446712, Gyeonggi Do, South Korea

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 18期

关键词：

poly(3,4-ethylenedioxythiophene); vapor-phase polymerization; Fe(III)-tosylate polyethyleneterphthalate;

D O I：

10.1016/j.tsf.2007.10.114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface morphology of poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated in the vapor-phase polymerization of the thiophene monomer on a flexible polyethyleneterphthalate (PET) substrate film. The PET surface was modified with ethylene diamine maintaining the surface roughness within 2 nm to create amine and amide groups for the enhanced hydrophilic interaction with Fe(III)-tosylate (Fe(OTs)(3)) and for the desirable hydrogen bonding with thiophene monomer as well as PEDOT. Polymerization rate was reduced by incorporating pyridine as a reaction retardant to control the surface roughness and conductivity of PEDOT thin films. The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)(3) molar ratio of 0.5 and a glycerol concentration of 4-5 wt.%, respectively, providing the conductivity up to 500 S/cm and the surface roughness < 2 nm. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：6020 / 6027

页数：8

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