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Cathodoluminescence study of defects created by Vickers indentation in hydrothermal ZnO crystals

Published online by Cambridge University Press:  31 January 2011

J. Mass ,
M. Avella ,
J. Jiménez ,
M. Callahan ,
D. Bliss  and
Buguo Wang
J. Mass
Affiliation:
Física de la Materia Condensada, ETSII, 47011 Valladolid, Spain; and Dpto. Matemáticas y Física, UniNorte, Km 5 Barranquilla, Colombia
M. Avella
Affiliation:
Física de la Materia Condensada, ETSII, 47011 Valladolid, Spain
J. Jiménez*
Affiliation:
Física de la Materia Condensada, ETSII, 47011 Valladolid, Spain
M. Callahan
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom Air Force Base, Massachusetts 01731
D. Bliss
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom Air Force Base, Massachusetts 01731
Buguo Wang
Affiliation:
Solid State Scientific Corporation, Hollis, New Hampshire 03049
*
a) Address all corresponding to this author. e-mail: [email protected]
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Abstract

Vickers indentations of ZnO crystals grown by the hydrothermal method were studied by cathodoluminescence. The defects induced by indentation influenced the luminescence spectrum, indicating the generation of non radiative recombination centers and a band close to the first phonon replica of the free exciton, in the surrounding area near the indentation. The possible nature of the defects responsible for such band is discussed. A comparison with polishing induced damage is also presented.

Keywords

DefectsHydrothermalLuminescence
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 12 , December 2007 , pp. 3526 - 3530
Copyright
Copyright © Materials Research Society 2007

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References

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