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*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

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 (US)
Pages (from-to)5148-5154
Number of pages7
JournalMacromolecules
Volume48
Issue number15
DOIs
StatePublished - Jul 21 2015

ASJC Scopus subject areas

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

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