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Imbalanced mobilities causing S-shaped IV curves in planar heterojunction organic solar cells

Abstract:

We show that S-kinks in the current voltage characteristics, which decrease the fill factor significantly, can be caused by a strong imbalance of charge carrier mobilities (hole mobility in donor and electron mobility in acceptor) in planar/flat heterojunction organic solar cells. Electrical simulations according to a drift-diffusion model predict the occurrence of an S-kink for a mobility mismatch factor larger than 100. By combining a low-mobility donor material, (1,2,3,4,9,10,11,12-octa...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Files:
Publisher copy:
10.1063/1.3553764

Authors


Petrich, A More by this author
Hummert, M More by this author
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Bundesministerium für Bildung und Forschung More from this funder
Publisher:
American Institute of Physics Publisher's website
Journal:
Applied Physics Letters Journal website
Volume:
98
Issue:
6
Pages:
Article: 063301
Publication date:
2011-02-07
DOI:
ISSN:
0003-6951
URN:
uuid:84b739fc-fdc9-440e-b262-c8d2d1a54e2a
Source identifiers:
405386
Local pid:
pubs:405386
Language:
English

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