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Increasing the Open Circuit Voltage of Bulk-Heterojunction Solar Cells by Raising the LUMO Level of the Acceptor
Abstract
We report the synthesis, characterization, and electrochemical properties of ten new fullerene derivatives for usage in organic solar cells. The phenyl ring of PCBM was substituted with electron-donating and electron-withdrawing substituents to study their influence on the LUMO level of the parent fullerene. We varied the LUMO level over a range of 86 mV and show a small but significant change of the open circuit voltage upon application in MDMO-PPV:methanofullerene bulk-heterojunction photovoltaic cells. [structure: see text].
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Metadata
- Authors
- Kooistra, F. B., Knol, J., Kastenberg, F., Popescu, L. M., Verhees, W. J. H., Kroon, J. M., & Hummelen, J. C.
- Venue
- Organic Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-01-25
- Volume
- 9
- Issue
- 4
- Pages
- 551-554
- ISSN
- 1523-7052 (ISSN-L)
- 1523-7060
- OpenAlex
- W2003350932
- Cited by
- 398
- References
- 20
- FWCI
- 35.91
- Type
- journal article
- Language
- en
- Open access
- closed
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