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Cu K-edge XAFS in CdTe before and after treatment with CdCl2

Published online by Cambridge University Press:  01 February 2011

Xiangxin Liu ,
Alvin D. Compaan ,
Nadia Leyarovska  and
Jeff Terry
Xiangxin Liu
Affiliation:
Department of Physics and Astronomy, The University of Toledo, Ohio 43606
Alvin D. Compaan
Affiliation:
Department of Physics and Astronomy, The University of Toledo, Ohio 43606
Nadia Leyarovska
Affiliation:
Department of Biological, Chemical, and Physical Sciences, Illinois Institute of Technology, Chicago IL 60616
Jeff Terry
Affiliation:
Department of Biological, Chemical, and Physical Sciences, Illinois Institute of Technology, Chicago IL 60616 Department of Physics, University of Notre Dame, Notre Dame IN 46556
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Abstract

We have used the fine structure in the Cu K-edge x-ray absorption spectrum to help elucidate the lattice location of Cu in polycrystalline, thin-film CdTe solar cells. In particular, we have studied how the typical CdCl2 vapor treatment in dry air changes the local environment of the Cu in CdTe. We find the Cu absorption spectrum to be similar to that of Cu2Te in the as-deposited CdTe film but to convert to a spectrum similar to Cu2O environment after the vapor CdCl2 treatment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 763: Symposium B – Compound Semiconductor Photovoltaics , 2003 , B3.5
Copyright
Copyright © Materials Research Society 2003

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