Temperature-independent transport in high-mobility pentacene transistors

S. F. Nelson, Y. Y. Lin, D. J. Gundlach, Thomas Nelson Jackson

Research output: Contribution to journalArticle

801 Scopus citations

Abstract

The charge-carrier transport mechanism in the organic semiconductor pentacene is explored using thin-film transistor structures. The variation of the field-effect mobility with temperature differs from sample to sample, ranging from thermally activated to temperature-independent behavior. This result excludes thermally activated hopping as the fundamental transport mechanism in pentacene thin films, and suggests that traps and/or contact effects may strongly influence the observed characteristics. These results also indicate that field-effect transistors may not be appropriate vehicles for illuminating basic transport mechanisms in organic materials.

Original languageEnglish (US)
Pages (from-to)1854-1856
Number of pages3
JournalApplied Physics Letters
Volume72
Issue number15
DOIs
StatePublished - Dec 1 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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