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Proceedings Paper

Enhanced light absorption in an ultrathin silicon solar cell utilizing plasmonic nanostructures
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Paper Abstract

Nowadays, bringing photovoltaics to the market is mainly limited by high cost of electricity produced by the photovoltaic solar cell. Thin-film photovoltaics offers the potential for a significant cost reduction compared to traditional photovoltaics. However, the performance of thin-film solar cells is generally limited by poor light absorption. We propose an ultrathin-film silicon solar cell configuration based on SOI structure, where the light absorption is enhanced by use of plasmonic nanostructures. By placing a one-dimensional plasmonic nanograting on the bottom of the solar cell, the generated photocurrent for a 200 nm-thickness crystalline silicon solar cell can be enhanced by 90% in the considered wavelength range. These results are paving a promising way for the realization of high-efficiency thin-film solar cells.

Paper Details

Date Published: 9 October 2012
PDF: 7 pages
Proc. SPIE 8457, Plasmonics: Metallic Nanostructures and Their Optical Properties X, 84572A (9 October 2012); doi: 10.1117/12.929499
Show Author Affiliations
Sanshui Xiao, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)
Niels Asger Mortensen, DTU Fotonik (Denmark)
Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 8457:
Plasmonics: Metallic Nanostructures and Their Optical Properties X
Mark I. Stockman, Editor(s)

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