Two band transport and disorder effects in a series of organic alloys: (TTF1-xTSeFx)-TCNQ (tetrathiafulvalene-tetraselenafulvalene-tetracyanoquinodimethane)

P. M. Chaikin, J. F. Kwak, R. L. Greene, S. Etemad, E. M. Engler

    Research output: Contribution to journalArticle

    Abstract

    We have measured the thermoelectric power of the organic solid solutions (TTF1-xTSeFx)-TCNQ from 300 to 20 K. We find that in TTF- TCNQ the conductivity is dominated by the TCNQ chain down to 58 K and the TTF chain dominates between 58 and 38 K. In TSeF-TCNQ the cation and anion conductivities are comparable at all temperatures. We also find that the disorder leads to band tailing and a finite density of localized states within the Peierls gap.

    Original languageEnglish (US)
    Pages (from-to)1201-1204
    Number of pages4
    JournalSolid State Communications
    Volume19
    Issue number12
    DOIs
    StatePublished - Sep 1976

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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