Wide-Bandgap Benzodithiophene-Benzothiadiazole Copolymers for Highly Efficient Multijunction Polymer Solar Cells

Novel wide‐bandgap semiconducting polymers are designed and synthesized for multijunction polymer solar cell (PSC) applications. In single‐junction PSCs, BDT‐FBT‐2T exhibits efficiencies exceeding 6.5% for active layer thicknesses between 90 and 250 nm, with the highest efficiency of 7.7% at 100 and...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-08, Vol.27 (30), p.4461-4468
Main Authors: Duan, Chunhui, Furlan, Alice, van Franeker, Jacobus J., Willems, Robin E. M., Wienk, Martijn M., Janssen, René A. J.
Format: Article
Language:English
Subjects:
Copolymers
high efficiency
multijunction
Photovoltaic cells
polymer solar cells
Solar cells
wide-bandgap polymers
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Summary:Novel wide‐bandgap semiconducting polymers are designed and synthesized for multijunction polymer solar cell (PSC) applications. In single‐junction PSCs, BDT‐FBT‐2T exhibits efficiencies exceeding 6.5% for active layer thicknesses between 90 and 250 nm, with the highest efficiency of 7.7% at 100 and 250 nm. This enables tandem PSCs to be created with an efficiency of 8.9%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201501626