Ordering effects in benzo[1,2-b:4,5-b']difuran-thieno[3,4-c]pyrrole-4,6- dione polymers with >7% solar cell efficiency

Type
Article
Authors
Warnan, Julien
Cabanetos, Clement
El Labban, Abdulrahman cc
Hansen, Michael Ryan
Tassone, Christopher J.
Toney, Michael F.
Beaujuge, Pierre cc
KAUST Department
Physical Sciences and Engineering (PSE) Division
KAUST Solar Center (KSC)
Biological and Environmental Sciences and Engineering (BESE) Division
Chemical Science Program
Date
2014-05-15
Permanent link to this record
http://hdl.handle.net/10754/563549

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Abstract
Benzo[1,2-b:4,5-b']difuran-thieno[3,4-c]pyrrole-4,6-dione (PBDFTPD) polymers prepared by microwave-assisted synthesis can achieve power conversion efficiencies (PCEs) >7% in bulk-heterojunction solar cells with phenyl-C61/71-butyric acid methyl ester (PCBM). In "as-cast" PBDFTPD-based devices solution-processed without a small-molecule additive, high PCEs can be obtained in spite of the weak propensity of the polymers to self-assemble and form π-aggregates in thin films. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Sponsors
The authors acknowledge financial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST). The authors thank KAUST Analytical Core Labs for mass spectrometry and elemental analyses, and Sandra Seywald (MPIP - Mainz, Germany) for SEC measurements. The authors thank the Advanced Imaging and Characterization Laboratories at KAUST for technical support. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource user facility, operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. MRH acknowledges financial support from the Villum Foundation under the Young Investigator Program.
Publisher
Wiley-Blackwell
Journal
Advanced Materials
ISSN
09359648
DOI
10.1002/adma.201305344
PubMed ID
24829168
Collections
Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Solar Center (KSC)