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Photoinduced charge transfer and efficient solar energy conversion in a blend of a red polyfluorene copolymer with CdSe nanoparticles.

Abstract:

We present measurements of charge transfer and the photovoltaic effect in a blend of the alternating polyfluorene copolymer poly(2,7-(9,9-dioctyl-fluorene)-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)) with branched CdSe nanoparticles. Quasi-steady-state photoinduced absorption measurements identified a long-lived charged species that formed after photoexcitation at room temperature. Photovoltaic devices based on this blend system showed a spectral response extending to 650 nm and g...

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Publication status:
Published

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Publisher copy:
10.1021/nl061085q

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
Svensson, M More by this author
Andersson, MR More by this author
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Journal:
Nano letters
Volume:
6
Issue:
8
Pages:
1789-1793
Publication date:
2006-08-05
DOI:
EISSN:
1530-6992
ISSN:
1530-6984
URN:
uuid:d316afba-b15f-42bb-bdc3-4e8a499aad49
Source identifiers:
154760
Local pid:
pubs:154760

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