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Multi-resonant absorption in ultra-thin silicon solar cells with metallic nanowires

Abstract : We propose a design to confine light absorption in flat and ultra-thin amorphous silicon solar cells with a one-dimensional silver grating embedded in the front window of the cell.We show numerically that multi-resonant light trapping is achieved in both TE and TM polarizations. Each resonance is analyzed in detail and modeled by Fabry-Perot resonances or guided modes via grating coupling. This approach is generalized to a complete amorphous silicon solar cell, with the additional degrees of freedom provided by the buffer layers. These results could guide the design of resonant structures for optimized ultra-thin solar cells.
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Submitted on : Wednesday, April 10, 2013 - 7:34:47 PM
Last modification on : Tuesday, September 22, 2020 - 3:38:09 AM
Long-term archiving on: : Thursday, July 11, 2013 - 4:18:54 AM

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I. Massiot, Clément Colin, Christophe Sauvan, Philippe Lalanne, Pere Roca I Cabarrocas, et al.. Multi-resonant absorption in ultra-thin silicon solar cells with metallic nanowires. Optics Express, Optical Society of America, 2013, 21 (S3), pp.A372-A381. ⟨hal-00811652⟩

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