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Dynamic characteristics of organic bulk-heterojunction solar cells

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Abstract

Transient characteristics of organic bulk-heterojunction solar cells have been studied using pulsed laser probing. An analysis of the photoresponse waveforms of a typical solar cell measured by varying load resistance within broad range at different values of the bias voltage provided detailed information on the photocell parameters that characterize electron-transport properties of active layers. It is established that the charge carrier mobility is sufficient to ensure high values of the fill factor (∼0.6) in the obtained photocells. On approaching the no-load voltage, the differential capacitance of the photocell exhibits a sixfold increase as compared to the geometric capacitance. A possible mechanism of recombination losses in the active medium is proposed.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    S. D. Babenko, A. A. Balakai, Yu. L. Moskvin, G. V. Simbirtseva & P. A. Troshin

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  1. S. D. Babenko
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  2. A. A. Balakai
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  3. Yu. L. Moskvin
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  4. G. V. Simbirtseva
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  5. P. A. Troshin
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Original Russian Text © S.D. Babenko, A.A. Balakai, Yu.L. Moskvin, G.V. Simbirtseva, P.A. Troshin, 2010, published in Izvestiya RAN. Energetika.

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Babenko, S.D., Balakai, A.A., Moskvin, Y.L. et al. Dynamic characteristics of organic bulk-heterojunction solar cells. Therm. Eng. 57, 1119–1124 (2010). https://doi.org/10.1134/S0040601510130057

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  • DOI: https://doi.org/10.1134/S0040601510130057

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