Functionalized anthradithiophenes for organic field-effect transistors

Ming Chou Chen, Choongik Kim, Sheng Yu Chen, Yen Ju Chiang, Ming Che Chung, Antonio Facchetti, Tobin J. Marks

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

Two new semiconductors for organic thin-film transistors (OTFTs), diperfluorophenyl anthradithiophene (DFPADT) and dimethyl anthradithiophene (DMADT), have been synthesized and characterized. The first material exhibits ambipolar transport in OTFT devices with field-effect mobilities (μ) of 6 × 10-4 cm2 V-1 s-1 and 0.05 cm2 V-1 s-1 for electrons and holes, respectively. Therefore, diperfluorophenyl substitution was found to be effective to induce n-type transport. Dimethyl-substituted anthradithiophene (DMADT) was also synthesized for comparison and exhibited exclusively hole transport with carrier mobility of ∼0.1 cm2 V-1 s -1. Within this semiconductor family, OTFT carrier mobility values are strongly dependent on the semiconductor film growth conditions, substrate deposition temperatures, and gate dielectric surface treatment.

Original languageEnglish
Pages (from-to)1029-1036
Number of pages8
JournalJournal of Materials Chemistry
Volume18
Issue number9
DOIs
Publication statusPublished - Feb 22 2008

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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    Chen, M. C., Kim, C., Chen, S. Y., Chiang, Y. J., Chung, M. C., Facchetti, A., & Marks, T. J. (2008). Functionalized anthradithiophenes for organic field-effect transistors. Journal of Materials Chemistry, 18(9), 1029-1036. https://doi.org/10.1039/b715746k