6 October 2014 Plasmonic electrodes for organic photovoltaics: polarization-independent absorption enhancement
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Abstract
We systematically investigate the optical and electrical properties of ultrathin two-dimensional (2D) Ag nanogratings (NGs), and explore their use as plasmonic transparent conducting electrodes in molecular organic photovoltaics (OPVs). A large broadband and polarization-insensitive optical absorption enhancement in the CuPc (copper phthalocyanine): PTCBI (perylene tetracarboxylic bisbenzimidazole) active light-harvesting layers is demonstrated using ultrathin 2D Ag NGs, and is attributed to the excitation of surface plasmon resonances and plasmonic cavity modes.
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Beibei Zeng, Beibei Zeng, Zakya H. Kafafi, Zakya H. Kafafi, Filbert J. Bartoli, Filbert J. Bartoli, "Plasmonic electrodes for organic photovoltaics: polarization-independent absorption enhancement", Proc. SPIE 9184, Organic Photovoltaics XV, 91841E (6 October 2014); doi: 10.1117/12.2061240; https://doi.org/10.1117/12.2061240
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