Stable polythiophene semiconductors incorporating thieno[2,3-6]thiophene

Martin Heeney, Clare Bailey, Kristijonas Genevicius, Maxim Shkunov, David Sparrowe, Steve Tierney, Iain McCulloch

Research output: Contribution to journalArticlepeer-review

353 Scopus citations


This work describes a new design methodology that allows the preparation of air stable, semiconducting thiophene polymers with high charge carrier mobilities. The incorporation of thieno[2,3-b]thiophene into a polythiophene backbone introduces cross-conjugated double bonds that disfavor full delocalization, leading to high ionization potential in comparison to a fully conjugated polythiophene, with no reduction in charge carrier mobility. The resulting solution processable polymers exhibit charge carrier mobilities up to 0.15 cm2/V s and on/off ratios greater than 105 when measured in air. Transistors exhibit lifetimes of several months in air with no encapsulation necessary.

Original languageEnglish (US)
Pages (from-to)1078-1079
Number of pages2
JournalJournal of the American Chemical Society
Issue number4
StatePublished - Feb 2 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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