Effects of concentrated sunlight on organic photovoltaics

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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We report the effects of concentrated sunlight on key photovoltaic parameters and stability of organic photovoltaics (OPV). Sunlight collected and concentrated outdoors was focused into an optical fiber and delivered onto a 1 cm2 bulk-heterojunction cell. Sunlight concentration C was varied gradually from 0.2 to 27 suns. Power conversion efficiency exhibited slow increase with C that was followed by saturation around 2% at C = 0.5–2.5 suns and subsequent strong reduction. Possible OPV applications in stationary solar concentrators (C ≤ 2 suns) are discussed. Finally, experiments at C = 55–58 suns demonstrated potential of our approach for accelerated studies of light induced mechanisms in the OPV degradation. © 2010 American Institute of Physics
Original languageEnglish
JournalApplied Physics Letters
Publication date2010
Volume96
Issue7
Pages073501
ISSN0003-6951
DOIs
StatePublished

Bibliographical note

Copyright (2010) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

CitationsWeb of Science® Times Cited: 24

Keywords

  • Polymer solar cells, Solar energy
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