Special Section on Nanophotonics and Plasmonics for Solar Energy Harvesting and Conversion

Transparent electrodes based on two-dimensional Ag nanogrids and double one-dimensional Ag nanogratings for organic photovoltaics

[+] Author Affiliations
Beibei Zeng, Zakya H. Kafafi, Filbert J. Bartoli

Lehigh University, Center for Photonics and Nanoelectronics, Department of Electrical and Computer Engineering, Bethlehem, Pennsylvania 18015, United States

J. Photon. Energy. 5(1), 057005 (Dec 23, 2014). doi:10.1117/1.JPE.5.057005
History: Received October 1, 2014; Accepted November 10, 2014
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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.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Beibei Zeng ; Zakya H. Kafafi and Filbert J. Bartoli
"Transparent electrodes based on two-dimensional Ag nanogrids and double one-dimensional Ag nanogratings for organic photovoltaics", J. Photon. Energy. 5(1), 057005 (Dec 23, 2014). ; http://dx.doi.org/10.1117/1.JPE.5.057005


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