Influence of photon recycling on solar cell efficiencies
Influence of photon recycling on solar cell efficiencies
A simple model of a homojunction solar cell is improved by taking into account the effect of photon recycling . The efficiency of converting solar radiation into electricity is studied as a function of the key variables. Some of these can be directly controlled, e.g. the semiconductor layer thickness and the surface recombination velocity. Other variables can be controlled indirectly, by doping, thermal treatments, etc: the internal efficiency of the radiative emission, the carrier lifetime and the minority carrier diffusion coefficient. For actual GaAs solar cells, taking photon recycling into consideration leads to an increase in efficiency of the order of 2%. The results we show are useful for the design and fabrication of solar cells based on wide-gap semiconductors.
1491-1497
Badescu, Viorel
f1b7824a-1d2c-4fe1-aca2-539f3b5813ea
Landsberg, Peter T.
cd811241-233f-4791-baa6-3c1abfc4cf8b
1997
Badescu, Viorel
f1b7824a-1d2c-4fe1-aca2-539f3b5813ea
Landsberg, Peter T.
cd811241-233f-4791-baa6-3c1abfc4cf8b
Badescu, Viorel and Landsberg, Peter T.
(1997)
Influence of photon recycling on solar cell efficiencies.
Semiconductor Science and Technology, 12 (11), .
(doi:10.1088/0268-1242/12/11/028).
Abstract
A simple model of a homojunction solar cell is improved by taking into account the effect of photon recycling . The efficiency of converting solar radiation into electricity is studied as a function of the key variables. Some of these can be directly controlled, e.g. the semiconductor layer thickness and the surface recombination velocity. Other variables can be controlled indirectly, by doping, thermal treatments, etc: the internal efficiency of the radiative emission, the carrier lifetime and the minority carrier diffusion coefficient. For actual GaAs solar cells, taking photon recycling into consideration leads to an increase in efficiency of the order of 2%. The results we show are useful for the design and fabrication of solar cells based on wide-gap semiconductors.
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Published date: 1997
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Local EPrints ID: 29160
URI: http://eprints.soton.ac.uk/id/eprint/29160
ISSN: 0268-1242
PURE UUID: 634b27cd-a27a-4dab-91ff-5a4428dd75db
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Date deposited: 09 Jan 2007
Last modified: 15 Mar 2024 07:29
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Author:
Viorel Badescu
Author:
Peter T. Landsberg
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