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A unified description of current-voltage characteristics in organic and hybrid photovoltaics under low light intensity.

Abstract:

We develop a simple model that can explain the current-voltage ( J- V) curves of excitonic photovoltaic solar cells, spanning polymer:polymer, polymer:fullerene, and polymer:nanocrystal devices. We show that by subtracting out the dark current, we can explain apparent intensity-dependent characteristics and thus identify geminate recombination as the dominant loss mechanism and establish its electric field dependence. We present an analytic fit to the J- V curves of all measured devices based...

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Publication status:
Published

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Publisher copy:
10.1021/nl080200p

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
Role:
Author
Journal:
Nano letters
Volume:
8
Issue:
5
Pages:
1393-1398
Publication date:
2008-05-05
DOI:
EISSN:
1530-6992
ISSN:
1530-6984
URN:
uuid:f495c90d-5638-41ed-9cd5-f8360f8dc1f6
Source identifiers:
155038
Local pid:
pubs:155038

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