Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 23, Pages 7248-7251Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b03562
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Funding
- U.S. National Science Foundation [NSF DMR-1263006]
- NSF MRSEC program at the University of Chicago [DMR-0213745]
- DOE via the ANSER Center, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001059]
- NIST via CHIMAD program
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
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A cluster type of electron acceptor, TPB, bearing four alpha-perylenediimides (PDIs), was developed, in which the four PDIs form a cross-like molecular conformation while still partially conjugated with the BDT-Th core. The blend TPB:PTB7-Th films show favorable morphology and efficient charge dissociation. The inverted solar cells exhibited the highest PCE of 8.47% with the extraordinarily high Js, values (>18 mA/cm(2)), comparable with those of the corresponding PC7IBM/PTB7-Th-based solar cells.
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