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Abstract
We demonstrate a new interpretation of the previously reported quadrimolecular recombination in organic bulk heterojunction solar cells. It is suggested that the recently described (Szmytkowski 2012 Phys. Status Solidi RRL 6 300) interaction between exciton and electron–hole Langevin bound pair formed across the donor–acceptor interface is a four-particle process. This is in opposition to the treatment of this effect as a three-particle phenomenon which might be intuitively expected because one exciton annihilates physically on one charge carrier. An excellent agreement between experimental data and theoretical calculations has been obtained. The novelty of the presented interpretation is of fundamental importance to understand mechanisms which limit the efficiency of organic solar cells.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
no. 28,
pages 1 - 5,
ISSN: 0268-1242 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Szmytkowski J.: Four-body recombination in organic bulk heterojunction solar cells: an alternative interpretation// SEMICONDUCTOR SCIENCE AND TECHNOLOGY. -Vol. 28, nr. 5 (2013), s.1-5
- Verified by:
- Gdańsk University of Technology
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