Dithienosilole- and dibenzosilole-thiophene copolymers as semiconductors for organic thin-film transistors

Hakan Usta, Gang Lu, Antonio Facchetti, Tobin J Marks

Research output: Contribution to journalArticle

290 Citations (Scopus)

Abstract

The synthesis and physicochemical properties of a new class of thiophene/arenesilole-containing π-conjugated polymers are reported. Examples of this new polymer class include the following: poly(2,5-bis(3′,3′′-dihexylsilylene-2′,2′′-bithieno)thiophene) (TS6T1), poly(2,5′-bis(3′′,3′″-dihexylsilylene-2′′,2′″-bithieno)bithiophene) (TS6T2), poly(2,5′-bis(2′′,2′″-dioctylsilylene-1′′,1′″-biphenyl)thiophene) (BS8T1), and poly(2,5′-bis(2′′,2′″-dioctylsilylene-1′′,1′″-biphenyl)bithiophene) (BS8T2). Organic field-effect transistors (OFETs) with hole carrier mobilities as high as 0.02-0.06 cm2/V s in air, low turn-on voltages, and current on/off ratios >105-106 are fabricated using solution processing techniques with the above polymers as the active channel layer. OFETs based on this polymer class exhibit excellent ambient operational stability.

Original languageEnglish
Pages (from-to)9034-9035
Number of pages2
JournalJournal of the American Chemical Society
Volume128
Issue number28
DOIs
Publication statusPublished - Jul 19 2006

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Thiophenes
Semiconductors
Thiophene
Thin film transistors
Organic field effect transistors
Polymers
Copolymers
Semiconductor materials
Carrier mobility
Conjugated polymers
Air
Electric potential
Processing
diphenyl

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Dithienosilole- and dibenzosilole-thiophene copolymers as semiconductors for organic thin-film transistors. / Usta, Hakan; Lu, Gang; Facchetti, Antonio; Marks, Tobin J.

In: Journal of the American Chemical Society, Vol. 128, No. 28, 19.07.2006, p. 9034-9035.

Research output: Contribution to journalArticle

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