Journal
ORGANIC ELECTRONICS
Volume 15, Issue 12, Pages 3800-3804Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2014.09.006
Keywords
Oligothiophene; Donor-acceptor oligomer; Organic solar cell; Small molecule; Dicyanovinyl groups
Funding
- Presidium of Russian Academy of Sciences [P-8]
- President of Russian Federation [MK-6716.2013.3]
- Sonderforschungsbereich Synthetic Carbon Allotropes [953]
- Solar Technologies go Hybrid (SolTech)
- China Scholarship Council (CSC)
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A new linear dithienosilole-based oligothiophene end-capped with methyl and electronwithdrawing dicyanovinyl groups, DTS(Oct)(2)-(2T-DCV-Me)(2), was prepared in good yield. This oligomer exhibited broad absorption spectra in bulk down to the near-IR region with the optical edge at 900 nm, resulting in an initially high power conversion efficiency of 5.44% in solution-processed organic solar cells using PC71BM as an acceptor. (C) 2014 Elsevier B.V. All rights reserved.
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