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Proceedings Paper

Up-conversion luminescence enhancement in erbium-doped porous silicon photonic crystals for photovoltaics
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Paper Abstract

Solar cell efficiency can be increased by adding a rear layer that captures unabsorbed low-energy photons and combines their energy to emit higher-energy photons. This concept has been demonstrated for silicon solar cells using erbium-doped phosphors. Here we investigate the possibility of enhancing intra-4f up-conversion processes within band-edge slow light modes in photonic crystals. We discuss the potential efficiency enhancement realizable one-dimensional erbium-doped porous silicon photonic crystals and present preliminary investigations into these interactions in a real structure.

Paper Details

Date Published: 21 February 2011
PDF: 11 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79330I (21 February 2011); doi: 10.1117/12.872115
Show Author Affiliations
Craig M. Johnson, The Univ. of New South Wales (Australia)
Peter J. Reece, The Univ. of New South Wales (Australia)
Gavin J. Conibeer, The Univ. of New South Wales (Australia)


Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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