Transport studies of protonated emeraldine polymer: A granular polymeric metal system

Fulin Zuo, Marie Angelopoulos, Alan G. MacDiarmid, Arthur J. Epstein

Research output: Contribution to journalArticle

339 Scopus citations

Abstract

An experimental study of the temperature- (T) dependent dc conductivity, the electric field (E) dependence of, and the T-dependent thermopower S as a function of protonation level (0.0<x[H+][N]0.5) of emeraldine polymer is presented. The conductivity (300 K) varies from 10-10 to 10 -1 cm-1 with increasing protonation, while (T)exp[-(T0T)12], with T0 decreasing with increasing x. Above a threshold field Et, exp(-E0E), with E0 constant. The thermopower S changes sign with increasing x and is proportional to T for x0.5. The transport properties are the first systematic evidence for the formation of a granular polymeric metal.

Original languageEnglish (US)
Pages (from-to)3475-3478
Number of pages4
JournalPhysical Review B
Volume36
Issue number6
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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