Modeling the Spectral Luminescence Emission of Silicon Solar Cells and Wafers

A generalized expression for the theoretical description of luminescence spectra of silicon solar cells and wafers is outlined. Models of the spectral luminescence emission, which can be found in the literature, are reviewed and compared with spectrally resolved photoluminescence measurements carrie...

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Bibliographic Details
Published in:IEEE journal of photovoltaics 2013-07, Vol.3 (3), p.1038-1052
Main Authors: Schinke, Carsten, Hinken, David, Schmidt, Jan, Bothe, Karsten, Brendel, Rolf
Format: Article
Language:English
Subjects:
Charge carrier distribution
Luminescence
Optical surface waves
photon escape probability
Photonics
Semiconductor device modeling
Silicon
Stimulated emission
Surface waves
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Summary:A generalized expression for the theoretical description of luminescence spectra of silicon solar cells and wafers is outlined. Models of the spectral luminescence emission, which can be found in the literature, are reviewed and compared with spectrally resolved photoluminescence measurements carried out on specially prepared samples. These models describe the spectrum of samples with either two planar or two rough (lambertian reflecting) surfaces. Good qualitative agreement is shown. Moreover, we introduce a new model which is valid for samples with any configuration of planar and textured surfaces and also takes free carrier absorption into account. The accuracy of the model is experimentally confirmed by a comparison to an electroluminescence spectrum of an industrial silicon solar cell.
ISSN:2156-3381
2156-3403
DOI:10.1109/JPHOTOV.2013.2263985