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Quantification of Light Trapping Using a Reciprocity Between Electroluminescent Emission and Photovoltaic Action in a Solar Cell

Published online by Cambridge University Press:  01 February 2011

Thomas Kirchartz ,
Anke Helbig  and
Uwe Rau
Thomas Kirchartz
Affiliation:
[email protected], Forschungszentrum Jülich, IEF5 Photovoltaik, Leo Brandt Str., Jülich, 52425, Germany
Anke Helbig
Affiliation:
[email protected], Universität Stuttgart, Institut für Physikalische Elektronik, Stuttgart, 70569, Germany
Uwe Rau
Affiliation:
[email protected], Forschungszentrum Jülich, IEF5 Photovoltaik, Leo Brandt Str., Jülich, 52425, Germany
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Abstract

Spatially and spectrally resolved electroluminescence (EL) measurements are powerful methods to characterize solar cells, if the EL is properly interpreted. The task of interpreting the results and modeling the spectral and absolute EL emission is strongly simplified by considering the link between EL and quantum efficiency. Using this connection, we show how to quantify the influence of light trapping on the solar cell absorptance using EL.

Keywords

Siluminescencephotovoltaic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1101: Symposium KK – Light Management in Photovoltaic Devices–Theory and Practice , 2008 , 1101-KK01-04
Copyright
Copyright © Materials Research Society 2008

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