Self-assembly and charge transport properties of a benzobisthiazole end-capped with dihexylthienothiophene units

Greg J. McEntee, Filipe Vilela, Peter Skabara, Thomas D. Anthopoulos, John G. Labram, Steve Tierney, Ross W. Harrington, William Clegg

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The synthesis of a new conjugated material is reported; BDHTT–BBT features a central electron-deficient benzobisthiazole capped with two 3,6-dihexyl-thieno[3,2-b]thiophenes. Cyclic voltammetry was used to determine the HOMO (−5.7 eV) and LUMO (−2.9 eV) levels. The solid-state properties of the compound were investigated by X-ray diffraction on single-crystal and thin-film samples. OFETs were constructed with vacuum deposited films of BDHTT–BBT. The films displayed phase transitions over a range of temperatures and the morphology of the films affected the charge transport properties of the films. The maximum hole mobility observed from bottom-contact, top-gate devices was 3 × 10−3 cm2 V−1 s−1, with an on/off ratio of 104–105 and a threshold voltage of −42 V. The morphological and self-assembly characteristics versus electronic properties are discussed for future improvement of OFET devices.
LanguageEnglish
Pages2091-2097
Number of pages7
JournalJournal of Materials Chemistry
Volume21
Issue number7
Early online date8 Nov 2010
DOIs
Publication statusPublished - 2011

Fingerprint

Transport properties
Self assembly
Charge transfer
Organic field effect transistors
Electron transport properties
Thiophenes
Hole mobility
Thiophene
Threshold voltage
Electronic properties
Cyclic voltammetry
Phase transitions
Single crystals
Vacuum
X ray diffraction
Thin films
Electrons
Temperature

Keywords

  • self-assembly and charge transport properties
  • benzobisthiazole
  • end-capped
  • dihexyl thienothiophene units
  • new conjugated material
  • solid-state properties
  • TIC - Bionanotechnology

Cite this

McEntee, G. J., Vilela, F., Skabara, P., Anthopoulos, T. D., Labram, J. G., Tierney, S., ... Clegg, W. (2011). Self-assembly and charge transport properties of a benzobisthiazole end-capped with dihexylthienothiophene units. Journal of Materials Chemistry, 21(7), 2091-2097. https://doi.org/10.1039/c0jm02607g
McEntee, Greg J. ; Vilela, Filipe ; Skabara, Peter ; Anthopoulos, Thomas D. ; Labram, John G. ; Tierney, Steve ; Harrington, Ross W. ; Clegg, William. / Self-assembly and charge transport properties of a benzobisthiazole end-capped with dihexylthienothiophene units. In: Journal of Materials Chemistry. 2011 ; Vol. 21, No. 7. pp. 2091-2097.
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McEntee, GJ, Vilela, F, Skabara, P, Anthopoulos, TD, Labram, JG, Tierney, S, Harrington, RW & Clegg, W 2011, 'Self-assembly and charge transport properties of a benzobisthiazole end-capped with dihexylthienothiophene units' Journal of Materials Chemistry, vol. 21, no. 7, pp. 2091-2097. https://doi.org/10.1039/c0jm02607g

Self-assembly and charge transport properties of a benzobisthiazole end-capped with dihexylthienothiophene units. / McEntee, Greg J.; Vilela, Filipe; Skabara, Peter; Anthopoulos, Thomas D.; Labram, John G.; Tierney, Steve; Harrington, Ross W.; Clegg, William.

In: Journal of Materials Chemistry, Vol. 21, No. 7, 2011, p. 2091-2097.

Research output: Contribution to journalArticle

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AU - Vilela, Filipe

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AU - Labram, John G.

AU - Tierney, Steve

AU - Harrington, Ross W.

AU - Clegg, William

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