Bulk Heterojunction Solar Cells Using Thieno3,4-cpyrrole-4,6-dione and Dithieno3,2-b:2',3'-dsilole Copolymer with a Power Conversion Efficiency of 7.3%
Summary of "Bulk Heterojunction Solar Cells Using Thieno3,4-cpyrrole-4,6-dione and Dithieno3,2-b:2',3'-dsilole Copolymer with a Power Conversion Efficiency of 7.3%"
A new alternating copolymer of dithienosilole and thienopyrrole-4,6-dione (PDTSTPD) possesses both a low optical bandgap (1.73 eV) and a deep highest occupied molecular orbital energy level (5.57 eV). The introduction of branched alkyl chains to the dithienosilole unit was found to be critical for the improvement of the polymer solubility. When blended with PC(71)BM, PDTSTPD exhibited a power conversion efficiency of 7.3% on the photovoltaic devices with an active area of 1 cm(2).
Affiliation
Institute for Microstructural Sciences and ⊥Institute for Chemical Process and Environmental Technology, National Research Council of Canada , Ottawa, Ontario K1A 0R6, Canada.
Journal Details
This article was published in the following journal.
Name: Journal of the American Chemical Society
ISSN: 1520-5126
Pages: 4250-4253
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21375331
- DOI: http://dx.doi.org/10.1021/ja200314m
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Hyperplasia
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