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Correlations Between Conditions of Synthesis, Phase Composition and Luminescent Properties of Eu - Polytantalate

Published online by Cambridge University Press:  01 February 2011

Vladimir Vasilyev ,
Alvin Drehman  and
Lionel Bouthillette
Vladimir Vasilyev
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA
Alvin Drehman
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA
Lionel Bouthillette
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA
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Abstract

Correlations between synthesis conditions, phase composition, and spectral properties of the sintered ceramic, thin films and single crystals of EuTa7O19 phosphors have been studied using x-ray diffractometry and temperature dependent photoluminescence (PL) spectroscopy at temperatures between 18 K and 650 K. From the PL spectra of Eu3+, one can obtain information about the area of homogeneity of phases, their temperature transformations, and changes in the bonding character in the neighborhood of the luminescent ion. As a result, this information helps to optimize the synthesis parameters for luminescent materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 796: Symposium V – Critical Interfacial Issues in Thin Film Optoelectronic and Energy Conversion Devices , 2003 , V3.8
Copyright
Copyright © Materials Research Society 2004

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References

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