Subdiffusion behavior in poly(3,4-ethylenedioxythiophene): Polystyrene sulfonate (PEDOT:PSS) evidenced by electrochemical impedance spectroscopy

被引：21

作者：

Hernandez-Labrado, G. R. ^{[1
]}

Contreras-Donayre, R. E. ^{[1
]}

Collazos-Castro, J. E. ^{[2
]}

Polo, J. L. ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Escuela Ingn Ind, Toledo 45071, Spain

[2] SESCAM, Hosp Nacl Paraplej, Toledo 45071, Spain

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2011年 / 659卷 / 02期

关键词：

Electrochemical impedance spectroscopy; Conducting polymers; Poly(3,4-ethylenedioxythiophene); PEDOT; Subdiffusion impedance; Anomalous diffusion; DIFFUSION; ELECTRODES; POLYMER;

D O I：

10.1016/j.jelechem.2011.05.008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We have obtained impedance measurements of PEDOT:PSS films and propose a novel interpretation for electrical charge transport mechanisms in the polymer. A parabolic subdiffusion model produced excellent fitting for the impedance data, suggesting that anomalous ion diffusion limits charge transfer through the nanoporous film. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：201 / 204

页数：4

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