Metallic temperature dependence of resistivity in polypyrrole and poly(3-methylthiophene) at low temperatures with and without pressure

被引：11

作者：

Masubuchi, S ^{[1
]}

Fukuhara, T ^{[1
]}

Kazama, S ^{[1
]}

机构：

[1] TOYAMA PREFECTURAL UNIV, DEPT LIBERAL ARTS & SCI, TOYAMA 93903, JAPAN

来源：

SYNTHETIC METALS | 1997年 / 84卷 / 1-3期

关键词：

electrochemical polymerization; polypyrrole and derivatives; polythiophene and derivatives; transport measurements;

D O I：

10.1016/S0379-6779(96)04070-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature dependence of resistivity (TDR) has been studied in PF6- doped poly(3-methylthiophene) (PMeT(PF6-)) and AsF6- doped polypyrrole (PPy(AsF6-)). For several samples of PMeT(PF6-) metallic TDR was observed below 8K similar to that in PPy(PF6-). For PPy(AsF6-), application of a pressure of 13.5 Kbar induced the metallic TDR below 9K, despite of the semiconducting TDR at ambient pressure throughout the whole temperatures. We have also observed a clear transition from semiconducting to metallic TDR in PMeT(PF6-) with increasing pressure. From our observations, it is indicated that the metallic TDR is not an exceptional phenomenon only in the PPy(PF6-).

引用

页码：601 / 602

页数：2

共 12 条

[1]

FUKUHARA T, UNPUB

[2] THERMOELECTRIC-POWER AND CONDUCTIVITY OF HETEROGENEOUS CONDUCTING POLYMERS [J].

KAISER, AB .

PHYSICAL REVIEW B, 1989, 40 (05) :2806-2813

[3] TEMPERATURE-DEPENDENCE OF CONDUCTIVITY IN METALLIC POLYACETYLENE [J].

KAISER, AB ;

GRAHAM, SC .

SYNTHETIC METALS, 1990, 36 (03) :367-380

[4] DISORDERED ELECTRONIC SYSTEMS [J].

LEE, PA ;

RAMAKRISHNAN, TV .

REVIEWS OF MODERN PHYSICS, 1985, 57 (02) :287-337

[5] A POSSIBLE PHASE-TRANSITION IN METALLIC POLYTHIOPHENE AND POLY(3-METHYLTHIOPHENE) AT LOW-TEMPERATURE [J].

MASUBUCHI, S ;

KAZAMA, S .

SYNTHETIC METALS, 1995, 69 (1-3) :315-316

[6] METALLIC TRANSPORT-PROPERTIES IN HCLO4 DOPED POLYACETYLENE - SHIRAKAWA AND HIGHLY-ORIENTED POLYACETYLENES [J].

MASUBUCHI, S ;

KAZAMA, S ;

MIZOGUCHI, K ;

SHIMIZU, F ;

KUME, K ;

MATSUSHITA, R ;

MATSUYAMA, T .

SYNTHETIC METALS, 1993, 57 (2-3) :4866-4871

[7]

MASUBUCHI S, UNPUB

[8] PRESSURE AND MAGNETIC-FIELD DEPENDENCE OF THE LOW-TEMPERATURE RESISTIVITY OF PF6-DOPED POLYPYRROLE [J].

REGHU, M ;

YOON, CO ;

MOSES, D ;

HEEGER, AJ .

SYNTHETIC METALS, 1994, 64 (01) :53-57

[9] COUNTERION-INDUCED PROCESSIBILITY OF POLYANILINE - TRANSPORT AT THE METAL-INSULATOR BOUNDARY [J].

REGHU, M ;

CAO, Y ;

MOSES, D ;

HEEGER, AJ .

PHYSICAL REVIEW B, 1993, 47 (04) :1758-1764

[10] STUDY ON THE ELECTRICAL-CONDUCTION MECHANISM OF POLYPYRROLE FILMS [J].

SATO, K ;

YAMAURA, M ;

HAGIWARA, T ;

MURATA, K ;

TOKUMOTO, M .

SYNTHETIC METALS, 1991, 40 (01) :35-48

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