Journal
MACROMOLECULES
Volume 46, Issue 15, Pages 5961-5967Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma401128s
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Funding
- Leventis Foundation
- FP7 X10D project [287818]
- Centre for Plastic Electronics at Imperial College London [EP/G037515/1]
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The synthesis and characterization of four new donor-acceptor type semiconducting polymers based on the electron-deficient diketopyrrolopyrrole unit for use in photovoltaic devices are reported. The extended 2-decyl-1-tetradecyl alkyl chain (C10C12) is utilized to provide a valuable route toward enhanced solubility. The resultant soluble DPP polymers were synthesized in high polymer molecular weights with a larger range of accessible comonomer units. Bulk heterojunction solar cells containing these polymers show promising device performance with efficiencies around 4%. Organic thin film transistor devices with high ambipolar hole mobilities of >0.1 cm(2) s(-1) are also reported.
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