Using Resonance Energy Transfer to Improve Exciton Harvesting in Organic-Inorganic Hybrid Photovoltaic Cells

Using Resonance Energy Transfer to Improve Exciton Harvesting in Organic-Inorganic Hybrid Photovoltaic Cells

The effective exciton diffusion length of poly(3‐hexylthiophene) (P3HT) can be improved with resonance‐energy transfer from P3HT to poly(N‐dodecyl‐2,5‐bis(2'‐thienyl)pyrrole‐2,1,3‐benzothiadiazole) (PTPTB), a low‐bandgap polymer, which results in a threefold increase of the photocurrent. Direct...

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Veröffentlicht in:Advanced materials (Weinheim) 2005-12, Vol.17 (24), p.2960-2964
Hauptverfasser: Liu, Y., Summers, M. A., Edder, C., Fréchet, J. M. J., McGehee, M. D.
Format: Artikel
Sprache:eng
Schlagworte:
Conjugated polymers
Energy transfer
Photovoltaic devices
Polythiophenes
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Zusammenfassung:The effective exciton diffusion length of poly(3‐hexylthiophene) (P3HT) can be improved with resonance‐energy transfer from P3HT to poly(N‐dodecyl‐2,5‐bis(2'‐thienyl)pyrrole‐2,1,3‐benzothiadiazole) (PTPTB), a low‐bandgap polymer, which results in a threefold increase of the photocurrent. Directional resonance energy transfer to the exciton‐splitting interface has the potential to overcome a number of limitations associated with exciton transport in polymer photovoltaic cells.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200501307