A benzotrithiophene-based low band gap polymer for polymer solar cells with high open-circuit voltage

A new benzotrithiophene-containing donor-acceptor type copolymer for polymer solar cells is reported. The promise of benzotrithiophene as a weak donor material is reflected in a polymer band gap of 1.75 eV affording a high Voc of 0.81 V and a moderate PCE of 2.2% in a polymer solar cell.

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Bibliographic Details
Published in:Journal of materials chemistry 2011-01, Vol.21 (44), p.17642-17645
Main Authors: Nielsen, Christian B., Schroeder, Bob C., Hadipour, Afshin, Rand, Barry P., Watkins, Scott E., McCulloch, Iain
Format: Article
Language:English
Subjects:
Copolymers
Donor materials
Electric potential
Photovoltaic cells
Solar cells
Volatile organic compounds
Voltage
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Summary:A new benzotrithiophene-containing donor-acceptor type copolymer for polymer solar cells is reported. The promise of benzotrithiophene as a weak donor material is reflected in a polymer band gap of 1.75 eV affording a high Voc of 0.81 V and a moderate PCE of 2.2% in a polymer solar cell.
ISSN:0959-9428
1364-5501
DOI:10.1039/c1jm13393d