Journal article
Dominating recombination mechanisms in organic solar cells based on ZnPc and C60
- Abstract:
- We investigate the dominating recombination mechanisms in bulk heterojunction solar cells, using a blend of ZnPc and C60 as model system. Analyzing the open-circuit voltage (Voc) as a function of illumination intensity, we find that trap-assisted recombination dominates for low light intensities, whereas at 1 sun, direct/bimolecular recombination becomes important. The recombination parameters are not significantly influenced by the blend mixing ratio and are also valid for injected charges. By changing the hole transport layer, recombination at the contact is separately identified as further mechanism reducing Voc at higher light intensities. © 2013 AIP Publishing LLC.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 411.7KB, Terms of use)
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- Publisher copy:
- 10.1063/1.4802276
Authors
- Publisher:
- AIP Publishing LLC
- Journal:
- Applied Physics Letters More from this journal
- Volume:
- 102
- Issue:
- 16
- Article number:
- 163901
- Publication date:
- 2013-04-22
- DOI:
- ISSN:
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0003-6951
- Language:
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English
- Pubs id:
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pubs:405335
- UUID:
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uuid:c2031ed3-3ad4-41e7-92eb-0d2488183cd1
- Local pid:
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pubs:405335
- Source identifiers:
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405335
- Deposit date:
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2013-11-16
Terms of use
- Copyright holder:
- AIP Publishing LLC
- Copyright date:
- 2013
- Notes:
- Copyright 2013 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 102, 163901 (2013) and may be found at http://dx.doi.org/10.1063/1.4802276
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