Thin film of ZnAl2O4:Eu3+ synthesized by a non-alkoxide precursor sol-gel method

Europium-doped zinc aluminate (ZnAl2O4:Eu3+) films were prepared by the dip-coating technique using a non-alkoxide precursor sol-gel method in ethanolic medium. Photoluminescence spectra displayed the main excitation bands at 270 and 393 nm. The emission spectra of the film heated at 500 ºC displaye...

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Bibliographic Details
Published in:Journal of the Brazilian Chemical Society 2010, Vol.21 (7), p.1395-1398
Main Authors: Martins, Renata F., Serra, Osvaldo A.
Format: Article
Language:English
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
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Summary:Europium-doped zinc aluminate (ZnAl2O4:Eu3+) films were prepared by the dip-coating technique using a non-alkoxide precursor sol-gel method in ethanolic medium. Photoluminescence spectra displayed the main excitation bands at 270 and 393 nm. The emission spectra of the film heated at 500 ºC displayed bands at 578, 590, 612, 650 and 698 nm, assigned to the 5D0 → 7F J (J = 0, 1, 2, 3, 4) transitions. The films are transparent above 320 nm.
ISSN:0103-5053
1678-4790
DOI:10.1590/S0103-50532010000700028