Journal
ADVANCED MATERIALS
Volume 26, Issue 9, Pages 1366-1371Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201304588
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Funding
- Center for Excitonics, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001088]
- National Science Foundation Graduate Research Fellowship [1122374]
- Deutsche Forschungsgemeinschaft [RE3198/1-1]
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Singlet exciton fission is an efficient multiple-exciton generation process that is vulnerable to a characteristic loss process: triplet-charge annihilation. This loss process is characterized in singlet-fission photovoltaics and losses as high as 40% are observed in poorly designed devices. Techniques are demonstrated to improve charge extraction and reduce triplet-charge annihilation to negligible levels at short-circuit conditions.
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