Preparation and Properties of Conducting Polymer Poly(3,4-ethylenedioxythiophene) Nanoparticles

Chem. J. Chinese Universities

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Preparation and Properties of Conducting Polymer Poly(3,4-ethylenedioxythiophene) Nanoparticles

YANG Ya-Jie, JIANG Ya-Dong*, XU Jian-Hua, YING Zhi-Hua

State Key Laboratory of Electronic Thin Films & Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China , Chengdu 610054, China

Received:2006-12-19 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
Contact: JIANG Ya-Dong

Abstract

Abstract: Poly(3,4-ethylene dioxythiophene)(PEDOT) nanoparticles was prepared by reverse micelles technique. The nanoparticles were characterized by UV-Vis-near IR(UV-Vis-NIR) adsorption spectrum, IR spectrum, X-ray photoelectron(XPS), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results confirmed that size distribution of this particle was 30—40 nm and the nanoparticles has been doped by Cl- during synthesis process. The conductivity of nanoparticles was investigated by four-probe and it has been found that this nanopartices showed higher conductivity(10.2 S/cm)than conventional one. Furthermore, the gas sensitivity of nanoparticles deposited on quartz crystal microbalance(QCM) was studied and the nanopartices deposited device exhibited excellent sensitivity to NH₃ gas at low concentration. The mechanism of conductivity and gas sensitivity of the nanoparticles are also included in this paper.

Key words: Reverse micelle, PEDOT, Conducting polymer, Nanoparticle, Gas sensitivity

CLC Number:

O647.2

TrendMD:

YANG Ya-Jie, JIANG Ya-Dong*, XU Jian-Hua, YING Zhi-Hua. Preparation and Properties of Conducting Polymer Poly(3,4-ethylenedioxythiophene) Nanoparticles[J]. Chem. J. Chinese Universities, doi: .

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Preparation and Properties of Conducting Polymer Poly(3,4-ethylenedioxythiophene) Nanoparticles

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