A Nature-Inspired Conjugated Polymer for High Performance Transistors and Solar Cells

Kealan J. Fallon, Nilushi Wijeyasinghe, Nir Yaacobi-Gross, Raja S. Ashraf, David M.E. Freeman, Robert G. Palgrave, Mohammed Al-Hashimi, Tobin J. Marks, Iain McCulloch, Thomas D. Anthopoulos, Hugo Bronstein

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33 Citations (Scopus)

Abstract

A novel, highly soluble chromophore for use in organic electronics based on an indigoid structure is reported. Copolymerization with thiophene affords an extremely narrow band gap polymer with a maximum absorption at ∼800 nm. The novel polymer exhibits high crystallinity and high ambipolar transport in OFET devices of 0.23 cm2 V-1 s-1 for holes and 0.48 cm2 V-1 s-1 for electrons. OPV device efficiencies up to 2.35% with light absorbance up to 950 nm demonstrate the potential for this novel chromophore in near-IR photovoltaics.

Original languageEnglish
Pages (from-to)5148-5154
Number of pages7
JournalMacromolecules
Volume48
Issue number15
DOIs
Publication statusPublished - 21 Jul 2015

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ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Fallon, K. J., Wijeyasinghe, N., Yaacobi-Gross, N., Ashraf, R. S., Freeman, D. M. E., Palgrave, R. G., Al-Hashimi, M., Marks, T. J., McCulloch, I., Anthopoulos, T. D., & Bronstein, H. (2015). A Nature-Inspired Conjugated Polymer for High Performance Transistors and Solar Cells. Macromolecules, 48(15), 5148-5154. https://doi.org/10.1021/acs.macromol.5b00542