Transport properties of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)

被引：161
|
作者：
Aleshin, AN
Williams, SR
Heeger, AJ [1 ]
机构：
[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
[3] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
来源：
SYNTHETIC METALS | 1998年 / 94卷 / 02期
关键词：
polythiophene and derivatives; conductivity; magnetotransport;
D O I：
10.1016/S0379-6779(97)04167-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The conductivity and magnetoresistance of poly( 3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDT/PSS) have been studied as a function of temperature. The room-temperature conductivities are dependent on the pH of the solutions from which the films are cast; values as high as 20 S/cm can be obtained in films cast from solutions with pH values in the range 0-3, The temperature dependence of the electrical conductivity is characteristic of granular metals (strongly disordered inhomogeneous systems), sigma(T) = sigma(0) exp[-(T-0/T)(1/2)]. The low-temperature magnetoresistance of PEDT/PSS is positive and follows an H-2 dependence at low magnetic fields. (C) 1998 Elsevier Science S.A. All rights reserved.
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页码：173 / 177
页数：5
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