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Spectrally Resolved Cathodoluminescence (SRCL) of Hydrothermal ZnO crystals

Published online by Cambridge University Press:  15 February 2011

J. Mass ,
M. Avella ,
J. Jiménez ,
M. Callahan ,
E. Grant ,
K. Rakes ,
D. Bliss  and
Buguo Wang
J. Mass
Affiliation:
Física de la Materia Condensada, ETSII, 47011 Valladolid, Spain Dpto. Matemàticas 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 AFB, MA 01731, USA
E. Grant
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, USA
K. Rakes
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, USA
D. Bliss
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, USA
Buguo Wang
Affiliation:
Solid State Scientific Corporation, Hollis, NH 03049, USA
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Abstract

Large hydrothermal ZnO crystals were grown using 3N NaOH, 1N KOH and 0.5N Li2CO3 mineralizer. The crystals were studied by cathodoluminescence (CL), showing a good crystalline quality. Different growth regions were identified by CL imaging. These regions were characterized by their corresponding luminescence spectra, showing that the incorporation of impurities and non radiative recombination centers depend on the growth sector. The surface is shown to introduce band tailing modifying the high energy part of the spectrum. The main spectral signatures of each sector are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 878: Symposium Y – Solvothermal Synthesis and Processing of Materials , 2005 , Y1.7
Copyright
Copyright © Materials Research Society 2005

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