Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors

Diego Cortizo Lacalle, Sasikumar Arumugam, Saadeldin E. T. Elmasly, Alexander L. Kanibolotsky, Neil J. Findlay, Anto Regis Inigo, Peter J. Skabara

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A new terthiophene-diketopyrrolopyrrole (DPP) copolymer has been synthesised in which the central thiophene ring within the terthiophene repeat unit is attached to a fused tetrathiafulvalene (TTF). The electrochemical and absorption data of the polymer, p(DPP-TTF), are presented, and the multi-redox states are investigated by UV-vis spectroelectrochemistry. Bottom gate/bottom contact field effect transistors were fabricated from films of p(DPP-TTF) annealed at 200 degrees C. The material, which under these conditions forms a fibrous structure, exhibited hole mobilities of 4 +/- 2 x 10(-2) cm(2) V-1 s(-1) with an on/off ratio of 1 x 10(4). The transistors showed little sign of degradation over 15 days of exposure under ambient conditions, demonstrating excellent air-stability. This characteristic is attributed to the incorporation of the TTF unit into the polymer.

LanguageEnglish
Pages11310-11315
Number of pages6
JournalJournal of Materials Chemistry
Volume22
Issue number22
DOIs
Publication statusPublished - 2 May 2012

Fingerprint

Organic field effect transistors
Copolymers
Spectroelectrochemistry
Hole mobility
Thiophene
Polymers
Field effect transistors
Air
Transistors
Degradation
Thiophenes
tetrathiafulvalene
alpha-terthienyl
Oxidation-Reduction

Keywords

  • tetrathiafulvalene
  • copolymers
  • organic field effect transistors

Cite this

Cortizo Lacalle, D., Arumugam, S., Elmasly, S. E. T., Kanibolotsky, A. L., Findlay, N. J., Inigo, A. R., & Skabara, P. J. (2012). Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors. Journal of Materials Chemistry , 22(22), 11310-11315. https://doi.org/10.1039/c2jm31502e
Cortizo Lacalle, Diego ; Arumugam, Sasikumar ; Elmasly, Saadeldin E. T. ; Kanibolotsky, Alexander L. ; Findlay, Neil J. ; Inigo, Anto Regis ; Skabara, Peter J. / Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors. In: Journal of Materials Chemistry . 2012 ; Vol. 22, No. 22. pp. 11310-11315.
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Cortizo Lacalle, D, Arumugam, S, Elmasly, SET, Kanibolotsky, AL, Findlay, NJ, Inigo, AR & Skabara, PJ 2012, 'Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors' Journal of Materials Chemistry , vol. 22, no. 22, pp. 11310-11315. https://doi.org/10.1039/c2jm31502e

Incorporation of fused tetrathiafulvalene units in a DPP-terthiophene copolymer for air stable solution processable organic field effect transistors. / Cortizo Lacalle, Diego; Arumugam, Sasikumar; Elmasly, Saadeldin E. T.; Kanibolotsky, Alexander L.; Findlay, Neil J.; Inigo, Anto Regis; Skabara, Peter J.

In: Journal of Materials Chemistry , Vol. 22, No. 22, 02.05.2012, p. 11310-11315.

Research output: Contribution to journalArticle

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AU - Cortizo Lacalle, Diego

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AU - Inigo, Anto Regis

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