ANALYSIS OF PRESSURE-DEPENDENCE OF ELECTRICAL-CONDUCTIVITY IN POLYPYRROLE

被引：27

作者：

MADDISON, DS ^{[1
]}

TANSLEY, TL ^{[1
]}

机构：

[1] MACQUARIE UNIV, SEMICOND SCI & TECHNOL LABS, N RYDE, NSW 2109, AUSTRALIA

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 04期

关键词：

D O I：

10.1063/1.351167

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Pressure dependence of the electrical conductivity of a range of polypyrrole samples doped to various levels is interpreted in terms of variable-range hopping theory. All samples are well described by a model that treats the density of localized states around the Fermi level as the pressure-dependent commodity. The presumption of invariance of wave-function inverse localization length is vindicated by samples with a range of mean hopping lengths all being described by a single state-compressibility term. This term is defined by the elastic constants of polypyrrole and measurements of macroscopic elasticity confirm the value deduced from the pressure dependence of conductivity versus temperature curves.

引用

页码：1831 / 1837

页数：7

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