Donor-Acceptor Oligothiophenes as Low Optical Gap Chromophores for Photovoltaic Applications

Donor-Acceptor Oligothiophenes as Low Optical Gap Chromophores for Photovoltaic Applications

Extended donor‐acceptor oligothiophenes exhibit a narrow optical energy gap in combination with strong light absorption and good intermolecular π–π stacking in the solid state for efficient charge transport. Bilayer photovoltaic devices utilizing these oligomers as p‐type semiconducting photosensiti...

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Veröffentlicht in:Advanced materials (Weinheim) 2008-12, Vol.20 (24), p.4810-4815
Hauptverfasser: Xia, Ping Fang, Feng, Xin Jiang, Lu, Jianping, Tsang, Sai-Wing, Movileanu, Raluca, Tao, Ye, Wong, Man Shing
Format: Artikel
Sprache:eng
Schlagworte:
Donor-Acceptor Chromophores
Oligothiophenes
Photovoltaic Devices
Semiconducting Oligomers
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Zusammenfassung:Extended donor‐acceptor oligothiophenes exhibit a narrow optical energy gap in combination with strong light absorption and good intermolecular π–π stacking in the solid state for efficient charge transport. Bilayer photovoltaic devices utilizing these oligomers as p‐type semiconducting photosensitizers afford high power conversion efficiencies of up to 2.7%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200703032