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Title: Surface Plasmon Polariton-coupled Waveguide Back Reflector in Thin-film Silicon Solar Cell
Authors: Prabhathan, Patinharekandy
Murukeshan, Vadakke Matham
Keywords: Infex terms
Solar energy
Thin film
Surface plasmons
Issue Date: 2015
Source: Prabhathan, P., & Murukeshan, V. M. (2016). Surface Plasmon Polariton-coupled Waveguide Back Reflector in Thin-film Silicon Solar Cell, Plasmonics, 11(1), 253-260.
Series/Report no.: Plasmonics
Abstract: Surface plasmon polariton (SPP) waveguide-coupled back reflector geometry is proposed for efficient light trapping and broadband absorption enhancement in thin-film silicon solar cells. The proposed geometry takes advantage of the localized surface plasmon (LSP) enhancement, Fabry-Perot (FP) resonance, and strong electric field confinement resulting from the SPP interference in a metal waveguide. It is shown that the designed light trapping structures contribute to significant light trapping and enhancement in the red to near-infrared part of the solar spectrum. For a thin-film silicon solar cell of 220-nm thickness, an absorption enhancement of 153 % is obtained when compared to a bare silicon solar cell. In comparison to other SPP-excited back reflection geometries, such as nano-gratings and nano-grooves, the proposed configuration shows a higher absorption enhancement factor and uniform field distribution inside the silicon layer. These results are expected to introduce new directions in the design of optimized nanoscale back reflectors in thin-film silicon solar cells.
ISSN: 1557-1955
DOI: 10.1007/s11468-015-0045-9
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2015 Springer. This is the author created version of a work that has been peer reviewed and accepted for publication by Plasmonics, Springer. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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