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 × 10-3cm2· V-1·-1, and the device had an on/off ratio of 105 and a turn-on voltage of +4V. 3,4-Difluoroterthiophenes have been polymerised, and the electronic and redox properties of the resulting polymers are discussed. OFET devices have been fabricated from poly8b using a bottom-gate, bottom-contact configuration. The material gives a maximum hole mobility of 3 × 10-3cm2·V -1·s-1, and the device has an on/off ratio of 105.
Original language | English (US) |
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Pages (from-to) | 2642-2648 |
Number of pages | 7 |
Journal | Macromolecular Chemistry and Physics |
Volume | 211 |
Issue number | 24 |
DOIs | |
State | Published - Dec 15 2010 |
Externally published | Yes |
Bibliographical note
Generated from Scopus record by KAUST IRTS on 2023-02-14Keywords
- conjugated polymers
- electrochemistry
- fluorine
- organic field-effect transistors
- polythiophene
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry