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arXiv · 1412.3439

Transparent Conducting Electrodes based on 1D and 2D Ag Nanogratings for Organic Photovoltaics

Beibei Zeng·Zakya H. Kafafi·Filbert J. Bartoli
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Abstract

The optical and electrical properties of optically-thin one-dimensional (1D) Ag nanogratings and two-dimensional (2D) Ag nanogrids are studied, and their use as transparent electrodes in organic photovoltaics are explored. A large broadband and polarization-insensitive optical absorption enhancement in the organic light-harvesting layers is theoretically and numerically demonstrated using either single-layer 2D Ag nanogrids or two perpendicular 1D Ag nanogratings, and is attributed to the excitation of surface plasmon resonances and plasmonic cavity modes. Total photon absorption enhancements of 150% and 200% are achieved for the optimized single-layer 2D Ag nanogrids and double (top and bottom) perpendicular 1D Ag nanogratings, respectively.

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Beibei Zeng, Zakya H. Kafafi, Filbert J. Bartoli. 2014-12-10. Transparent Conducting Electrodes based on 1D and 2D Ag Nanogratings for Organic Photovoltaics. https://arxiv.org/abs/1412.3439

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