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Journal of Photonics for Energy

Transparent electrodes based on two-dimensional Ag nanogrids and double one-dimensional Ag nanogratings for organic photovoltaics
Author(s): Beibei Zeng; Zakya H. Kafafi; Filbert J. Bartoli
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Paper Abstract

The optical and electrical properties of optically thin one-dimensional (1-D) Ag nanogratings and two-dimensional (2-D) Ag nanogrids are studied, and their use as transparent electrodes in organic photovoltaics is 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 2-D Ag nanogrids or two perpendicular 1-D 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 2-D Ag nanogrids and double (top and bottom) perpendicular 1-D Ag nanogratings, respectively.

Paper Details

Date Published: 23 December 2014
PDF: 13 pages
J. Photon. Energy. 5(1) 057005 doi: 10.1117/1.JPE.5.057005
Published in: Journal of Photonics for Energy Volume 5, Issue 1
Show Author Affiliations
Beibei Zeng, Lehigh Univ. (United States)
Zakya H. Kafafi, Lehigh Univ. (United States)
Filbert J. Bartoli, Lehigh Univ. (United States)

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