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Spatially Resolved Characterization in Thin-Film PhotovoltaicsTheoretical Background

Spatially Resolved Characterization in Thin-Film Photovoltaics: Theoretical Background [The theoretical background on photovoltaic (PV) device operation is reviewed. The principle of light absorption in direct and indirect semiconductors, and the use of a p–n and p–i–n devices are explained. Basic performance parameters and one-diode model parameters of solar cells are introduced and explained together with intrinsic and extrinsic loss mechanisms. Extrinsic losses originating from the spatial dimensions of the devices are systematically presented. General recombination processes are reviewed with an emphasis on radiative recombinations, which are the source of luminescence. A distinction is made between a photo- and electroluminescence image based on the type of luminescence excitation. Finally, a summary of the reciprocity relation between PV quantum efficiency and electroluminescence is given.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Spatially Resolved Characterization in Thin-Film PhotovoltaicsTheoretical Background

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Publisher
Springer International Publishing
Copyright
© The Author(s) 2015
ISBN
978-3-319-14650-8
Pages
5 –17
DOI
10.1007/978-3-319-14651-5_2
Publisher site
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Abstract

[The theoretical background on photovoltaic (PV) device operation is reviewed. The principle of light absorption in direct and indirect semiconductors, and the use of a p–n and p–i–n devices are explained. Basic performance parameters and one-diode model parameters of solar cells are introduced and explained together with intrinsic and extrinsic loss mechanisms. Extrinsic losses originating from the spatial dimensions of the devices are systematically presented. General recombination processes are reviewed with an emphasis on radiative recombinations, which are the source of luminescence. A distinction is made between a photo- and electroluminescence image based on the type of luminescence excitation. Finally, a summary of the reciprocity relation between PV quantum efficiency and electroluminescence is given.]

Published: Jan 23, 2015

Keywords: Photovoltaics; Thin-film; Operation; Luminescence; Reciprocity relation

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