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Photovoltaic applications of micro- and nano-crystalline silicon carbide

Published online by Cambridge University Press:  18 August 2011

A. Konopka ,
S. Greulich-Weber ,
E. Rauls ,
W.G. Schmidt  and
U. Gerstmann
A. Konopka
Affiliation:
Department of Physics, University of Paderborn, Paderborn, Germany.
S. Greulich-Weber
Affiliation:
Department of Physics, University of Paderborn, Paderborn, Germany.
E. Rauls
Affiliation:
Department of Physics, University of Paderborn, Paderborn, Germany.
W.G. Schmidt
Affiliation:
Department of Physics, University of Paderborn, Paderborn, Germany.
U. Gerstmann
Affiliation:
Department of Physics, University of Paderborn, Paderborn, Germany.
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Abstract

One of the challenges on the way to optimized solar cells is to make the thickness of the individual layers smaller than the diffusion length of the charge carriers. In this work, we propose 3C-SiC microcrystals grown by a sol-gel based process as a promising acceptor material for photovoltaic applications. The μc-SiC samples were characterized by optical spectroscopy and electron paramagnetic resonance (EPR). The experimental data is analyzed with the help of ab-inito calculations in the framework of density functional theory (DFT) resulting in electronic band structures and g-tensors. Based on this, a possible scenario for the observed acceptor process is discussed.

Keywords

electron spin resonancephotovoltaicsol-gel
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1322: Symposium B – Third-Generation and Emerging Solar-Cell Technologies , 2011 , mrss11-1322-b10-02
Copyright
Copyright © Materials Research Society 2011

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References

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