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 language | English (US) |
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Pages (from-to) | 5148-5154 |
Number of pages | 7 |
Journal | Macromolecules |
Volume | 48 |
Issue number | 15 |
DOIs | |
State | Published - Jul 21 2015 |
Bibliographical note
Publisher Copyright:© 2015 American Chemical Society.
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry