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Time-evolution of poly(3-hexylthiophene) as an energy relay dye in dye-sensitized solar cells.

Abstract:
Energy relay dyes (ERD) and Förster resonant energy transfer (FRET) are useful techniques for increasing absorption in dye-sensitized solar cells. We use femtosecond transient absorption spectroscopy to monitor charge generation processes in a solid-state DSC containing poly(3-hexylthiophene) (P3HT) as both the hole-transporter and the ERD with a zinc phthalocyanine dye (TT1) as the sensitizer. We observe efficient FRET occurring on picosecond time scales and subsequent hole transfer from TT1 to P3HT occurring onward from 100 ps.
Publication status:
Published

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Publisher copy:
10.1021/nl203377r

Authors


Humphry-Baker, N More by this author
Driscoll, K More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
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Journal:
Nano letters
Volume:
12
Issue:
2
Pages:
634-639
Publication date:
2012-02-05
DOI:
EISSN:
1530-6992
ISSN:
1530-6984
URN:
uuid:e5b0fce7-4fd7-4e2f-a619-935a84a08c41
Source identifiers:
222356
Local pid:
pubs:222356

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