Transport and magneto-transport study on some conducting polyanilines

被引：4

作者：

Angappane, S

Srinivasan, D

Rangarajan, G ^{[1
]}

Prasad, V

Subramanyam, SV

Wessling, B

机构：

[1] Indian Inst Technol, Dept Phys, Chennai 600036, Tamil Nadu, India

[2] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

[3] Ormecon Chem GmbH & Co, D-22949 Ammersbek, Germany

来源：

PHYSICA B | 2000年 / 284卷

关键词：

conducting polymers; disordered metals; PAni; PAni-PMMA; polyaniline;

D O I：

10.1016/S0921-4526(99)02949-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The room temperature electrical conductivities of pristine polyaniline (PAni), its blend with PMMA (polymethylmethacrylate) in the ratio 2:3 and PAni extracted from the blend were found to be 18, 29 and 73 S/cm, respectively. The temperature dependence of conductivity was also found to differ markedly: for the extract and the blends it is weakly temperature dependent over the interval 300-1.2 K. Reduced activation energy versus temperature plots showed that, while the unblended PAni is on the insulating side of the M-I transition, the blends and the extracted PAni are on the metallic side. The magneto-conductivity (MC) of the extracted PAni is discussed in terms of localization and Coulomb interaction effects. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1982 / 1983

页数：2