Resonant cavity enhanced light harvesting in flexible thin-film organic solar cells
AuthorsSergeant, Nicholas P.
Liu, Albert S.
Rand, Barry P.
KAUST Grant NumberKUS-C1-015-21
Online Publication Date2013-04-24
Print Publication Date2013-05-01
Permanent link to this recordhttp://hdl.handle.net/10754/599501
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AbstractDielectric/metal/dielectric (DMD) electrodes have the potential to significantly increase the absorption efficiency and photocurrent in flexible organic solar cells. We demonstrate that this enhancement is attributed to a broadband cavity resonance. Silver-based semitransparent DMD electrodes with sheet resistances below 10 ohm/sq. are fabricated on flexible polyethylene terephthalate (PET) substrates in a high-throughput roll-to-roll sputtering tool. We carefully study the effect of the semitransparent DMD electrode (here composed of ZnxSnyOz/Ag/InxSn yOz) on the optical device performance of a copper phthalocyanine (CuPc)/fullerene (C60) bilayer cell and illustrate that a resonant cavity enhanced light trapping effect dominates the optical behavior of the device. © 2013 Optical Society of America.
CitationSergeant NP, Niesen B, Liu AS, Boman L, Stoessel C, et al. (2013) Resonant cavity enhanced light harvesting in flexible thin-film organic solar cells. Opt Lett 38: 1431. Available: http://dx.doi.org/10.1364/ol.38.001431.
SponsorsThis work was partially supported by the Center for Advanced Molecular Photovoltaics (Award No. KUS-C1-015-21), made possible by King Abdullah University of Science and Technology. The authors thank Steve Smout for the patterning of the active device area.
PublisherThe Optical Society
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