Correlation of Heterojunction Luminescence Quenching and Photocurrent in Polymer‐Blend Photovoltaic Diodes | Zendy

GonzalezRabade Astrid | Zendy; Morteani Arne C. | Zendy; Friend Richard H. | Zendy

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Correlation of Heterojunction Luminescence Quenching and Photocurrent in Polymer‐Blend Photovoltaic Diodes

Author(s) -

GonzalezRabade Astrid,

Morteani Arne C.,

Friend Richard H.

Publication year - 2009

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200901114

Subject(s) - materials science , luminescence , photocurrent , exciton , heterojunction , optoelectronics , quenching (fluorescence) , polymer solar cell , organic solar cell , diode , electron , photochemistry , photovoltaic system , electric field , charge (physics) , chemical physics , polymer , solar cell , fluorescence , condensed matter physics , optics , chemistry , physics , ecology , quantum mechanics , composite material , biology

Charge generation in organic solar cells proceeds via photogeneration of excitons in the bulk that form geminate electron–hole pairs at the heterojunction formed between electron donor and acceptors. It is shown that an externally applied electric field increases the number of free charges formed from the geminate pair, and quenches the luminescence from the relaxed exciplex with one‐to‐one correspondence.

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