Journal article
Dicyanovinyl-quinquethiophenes with varying alkyl chain lengths: Investigation of their performance in organic devices
- Abstract:
- We compare between two derivatives of dicyanovinyl-quinquethiophenes with different alkyl side chain lengths. Both materials show comparable open circuit voltages Voc in organic solar cells with fullerene C60 as acceptor, as expected since they have the same highest occupied molecular orbital energy. However, differences in the current-voltage-characteristics, particularly in the fill factor, are observed. We analyze both derivatives in hole-only devices and find a difference in the hole injection between the doped hole transport layer and the oligothiophenes. Additionally, we determine the hole mobility of the two materials and explain the different behaviors of the two materials in solar cells. © 2008 American Institute of Physics.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 272.7KB, Terms of use)
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- Publisher copy:
- 10.1063/1.2990071
Authors
- Publisher:
- American Institute of Physics
- Journal:
- Journal of Applied Physics More from this journal
- Volume:
- 104
- Issue:
- 7
- Article number:
- 074511
- Publication date:
- 2008-01-01
- DOI:
- ISSN:
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0021-8979
- Language:
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English
- Pubs id:
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pubs:405418
- UUID:
-
uuid:4d08dc57-e358-4529-b32c-4bc1213a633c
- Local pid:
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pubs:405418
- Source identifiers:
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405418
- Deposit date:
-
2013-09-26
Terms of use
- Copyright holder:
- American Institute of Physics
- Copyright date:
- 2008
- Notes:
- Copyright 2008 American Institute of Physics. 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 J. Appl. Phys. 104, 074511 (2008) and may be found at http://dx.doi.org/10.1063/1.2990071
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