Polyterthiophenes incorporating 3,4-difluorothiophene units: application in organic field-effect transistors

David J. Crouch; David Sparrowe; Martin Heeney; Iain McCulloch; Peter Skabara

doi:10.1002/macp.201000363

Polyterthiophenes incorporating 3,4-difluorothiophene units: application in organic field-effect transistors

David J. Crouch, David Sparrowe, Martin Heeney, Iain McCulloch, Peter Skabara

Pure And Applied Chemistry

Research output: Contribution to journal › Article

7 Citations (Scopus)

66 Downloads (Pure)

Abstract

Two terthiophenes bearing core fluorinated thienyl units have been synthesised as potential semiconductor materials for organic field-effect transistors. Polymerisation of these compounds has been achieved using conventional iron(III) chloride oxidative coupling methods and by electrochemical oxidation. Characterisation of the fluorinated materials has been achieved by absorption spectroscopy and cyclic voltammetry. A soluble hexyl-functionalised polymer (poly8b) was used in an OFET device; hole mobilities were measured up to 3 × 10−3 cm2 · V−1 · s−1, and the device had an on/off ratio of 105 and a turn-on voltage of +4 V.

Original language	English
Pages (from-to)	2642-2648
Number of pages	7
Journal	Macromolecular Chemistry and Physics
Volume	211
Issue number	24
Early online date	15 Nov 2010
DOIs	https://doi.org/10.1002/macp.201000363
Publication status	Published - 15 Dec 2010

Keywords

conjugated polymers
polythiophene
field-effect transistors
electrochemistry
fluorine

Access to Document

10.1002/macp.201000363

MCP DFTAccepted author manuscript, 274 KB

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Projects

1 Finished

Physical Organic Chemistry: Opportunities In Synthesis, Materials And Pharmaceuticals (Science And Innovation Award)

Murphy, J., Coombs, G., Ferguson, A. & Florence, A.

Scottish Funding Council SFC, EPSRC (Engineering and Physical Sciences Research Council)

1/09/07 → 30/10/12

Project: Research

Cite this

Crouch, D. J., Sparrowe, D., Heeney, M., McCulloch, I., & Skabara, P. (2010). Polyterthiophenes incorporating 3,4-difluorothiophene units: application in organic field-effect transistors. Macromolecular Chemistry and Physics, 211(24), 2642-2648. https://doi.org/10.1002/macp.201000363

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abstract = "Two terthiophenes bearing core fluorinated thienyl units have been synthesised as potential semiconductor materials for organic field-effect transistors. Polymerisation of these compounds has been achieved using conventional iron(III) chloride oxidative coupling methods and by electrochemical oxidation. Characterisation of the fluorinated materials has been achieved by absorption spectroscopy and cyclic voltammetry. A soluble hexyl-functionalised polymer (poly8b) was used in an OFET device; hole mobilities were measured up to 3 × 10−3 cm2 · V−1 · s−1, and the device had an on/off ratio of 105 and a turn-on voltage of +4 V.",

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