Journal
MACROMOLECULES
Volume 48, Issue 15, Pages 5148-5154Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.5b00542
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Funding
- Qatar National Research Fund [7-286-1-046.]
- EPSRC [EP/K039946/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K039946/1] Funding Source: researchfish
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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 similar to 800 nm. The novel polymer exhibits high crystallinity and high ambipolar transport in OFET devices of 0.23 cm(2) V-1 s(-1) for holes and 0.48 cm(2) 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.
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