Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers

Mohammed Al-Hashimi, Yang Han, Jeremy Smith, Hassan S. Bazzi, Siham Yousuf A Alqaradawi, Scott E. Watkins, Thomas D. Anthopoulos, Martin Heeney

Research output: Contribution to journalArticle

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Abstract

We report the first soluble poly(3-dodecyl tellurophenylene-vinylene) polymer (P3TeV) by Stille copolymerization and compare its properties to the analogous thiophene and selenophene containing polymers. The optical band gap of the polymers is shown to systematically decrease as the size of the heteroatom is increased, mainly as a result of a stabilization of the LUMO energy, resulting in a small band gap of 1.4 eV for P3TeV. Field effect transistors measurements in variety of architectures demonstrate that the selenophene polymer exhibits the highest mobility, highlighting that increasing the size of the heteroatom is not always beneficial for charge transport.

Original languageEnglish
Pages (from-to)1093-1099
Number of pages7
JournalChemical Science
Volume7
Issue number2
DOIs
Publication statusPublished - 2016

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Thiophenes
Optoelectronic devices
Polymers
Transistors
Copolymers
Optical band gaps
Field effect transistors
Copolymerization
Charge transfer
Energy gap
Stabilization

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers. / Al-Hashimi, Mohammed; Han, Yang; Smith, Jeremy; Bazzi, Hassan S.; Alqaradawi, Siham Yousuf A; Watkins, Scott E.; Anthopoulos, Thomas D.; Heeney, Martin.

In: Chemical Science, Vol. 7, No. 2, 2016, p. 1093-1099.

Research output: Contribution to journalArticle

Al-Hashimi, Mohammed ; Han, Yang ; Smith, Jeremy ; Bazzi, Hassan S. ; Alqaradawi, Siham Yousuf A ; Watkins, Scott E. ; Anthopoulos, Thomas D. ; Heeney, Martin. / Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers. In: Chemical Science. 2016 ; Vol. 7, No. 2. pp. 1093-1099.
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