Increased open-circuit voltage of organic solar cells by reduced donor-acceptor interface area

The charge carrier lifetime in small molecule: C60 photovoltaic devices is increased by reducing the physical interface area availabe for recombination. For donor contents below 10%, the gain in open-circuit voltage (Voc) depends logarithmically on the interface area while the energy of the interfac...

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Bibliografiska uppgifter
Huvudupphovsmän: Vandewal, K, Widmer, J, Heumueller, T, Brabec, C, McGehee, MD, Leo, K, Riede, M, Salleo, A
Materialtyp: Journal article
Språk:English
Publicerad: Wiley 2014
Beskrivning
Sammanfattning:The charge carrier lifetime in small molecule: C60 photovoltaic devices is increased by reducing the physical interface area availabe for recombination. For donor contents below 10%, the gain in open-circuit voltage (Voc) depends logarithmically on the interface area while the energy of the interfacial charge-transfer state ECT remains invariant. © 2014 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.