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Cathodoluminescent and Photoluminescent Properties of Al2O3 Powders Doped with Eu

2002; Wiley; Volume: 193; Issue: 1 Linguagem: Inglês

10.1002/1521-396x(200209)193

1521-396X

A.E. Esparza-Garc�a, M. Garc�a-Hip�lito, M. Aguilar‐Frutis, C. Falcony,

Glass properties and applications

physica status solidi (a)Volume 193, Issue 1 p. 117-124 Original Paper Cathodoluminescent and Photoluminescent Properties of Al2O3 Powders Doped with Eu A.E. Esparza-García, A.E. Esparza-García CICATA-IPN, Legaria 694, Col. Irrigación 11500, México D.F., MéxicoSearch for more papers by this authorM. García-Hipólito, M. García-Hipólito Instituto de Investigaciones en Materiales – UNAM, Coyoacán 04510, México D.F., MéxicoSearch for more papers by this authorM.A. Aguilar-Frutis, M.A. Aguilar-Frutis CICATA-IPN, Legaria 694, Col. Irrigación 11500, México D.F., MéxicoSearch for more papers by this authorC. Falcony, C. Falcony cfalcony@fis.cinvestav.mx Centro de Investigación y Estudios Avanzados – IPN, Departamento de Física, Apdo. Post. 14-740, 07000 México D.F., MéxicoSearch for more papers by this author A.E. Esparza-García, A.E. Esparza-García CICATA-IPN, Legaria 694, Col. Irrigación 11500, México D.F., MéxicoSearch for more papers by this authorM. García-Hipólito, M. García-Hipólito Instituto de Investigaciones en Materiales – UNAM, Coyoacán 04510, México D.F., MéxicoSearch for more papers by this authorM.A. Aguilar-Frutis, M.A. Aguilar-Frutis CICATA-IPN, Legaria 694, Col. Irrigación 11500, México D.F., MéxicoSearch for more papers by this authorC. Falcony, C. Falcony cfalcony@fis.cinvestav.mx Centro de Investigación y Estudios Avanzados – IPN, Departamento de Física, Apdo. Post. 14-740, 07000 México D.F., MéxicoSearch for more papers by this author First published: 27 June 2002 https://doi.org/10.1002/1521-396X(200209)193:1 3.0.CO;2-TCitations: 18AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Eu-doped Al2O3 powders were made by a coprecipitation technique using aluminum nitrate and europium chloride as precursors at annealing temperatures of 500, 700, and 900 °C. Room temperature cathodoluminescence and photoluminescence characteristics of Al2O3 : Eu powders as a function of the dopant concentration and annealing temperature have been studied. The emissions from Eu-doped powders have the spectral characteristics typical of radiative transitions among the electronic energy levels associated with the 3+ ionized state of this ion. The X-ray diffraction patterns show a broad peak that tends to become narrower as the annealing temperature is raised. Energy dispersive spectroscopy indicates that the powders are oxygen-rich, which may indicate a low density or porous material. Finally, scanning electron microscopy images show a variety in the shape and size of the powder particles associated with the milling procedure implemented in order to obtain the powders. Citing Literature Volume193, Issue1September 2002Pages 117-124 RelatedInformation