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Phase Transformations in Bulk (Ge2Se7)88Bi5Sb7

Published online by Cambridge University Press:  01 February 2011

Guy J. Adriaenssens
Guy J. Adriaenssens*
Affiliation:
guy.adri@fys.kuleuven.be, University of Leuven, Halfgeleiderfysica, Celestijnenlaan 200D, Leuven, N/A, B-3001, Belgium, + 32 16 327 129, + 32 16 327 987
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Abstract

Annealing at 150 °C induces phase separation in amorphous (Ge2Se7)88Bi5Sb7 bulk samples. Spectrally resolved steady-state photoconductivity measurements indicate the presence of crystalline Bi2Se3 clusters in the annealed material, but also the subsequent gradual disappearance of this microstructure at room temperature. Similar annealing-induced metastable changes are observed in other elements of a (Ge2Se7)88BixSb12-x sample series.

Keywords

phase transformationamorphousphotoconductivity
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 918: Symposium H – Chalcogenide Alloys for Reconfigurable Electronics , 2006 , 0918-H08-06
Copyright
Copyright © Materials Research Society 2006

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