Pechini's solution as precursor for Eu(III)-containing ZnO films
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Data
2003-02-15
Autores
Lima, SAM
Sigoli, F. A.
Davolos, Marian Rosaly [UNESP]
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Elsevier B.V.
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The flat-panel-display's (FPD) market and demand for highly efficient and colored luminescent films have been growing quickly. In this work, thin films were obtained from Pechini's solution by dip-coating. The green films were thermally treated at 873 K in order to get ZnO:Eu 1 at% thin film. A Schott(R) glass plate hydrothermally treated was used as substrate. The films have a mosaic shaped feature that was observed by optical microscopy. That feature is a result of substrate thermal treatment. The film deposition decreases the substrate transmittance in the visible range. When the F-7(0) -->L-5(6) (392nm) Eu3+ transition is excited, it is possible to detect emission from D-5(0) --> F-7(J) (J = 1, 2, 3 and 4) transitions. The D-5(0) --> F-7(2) transition is also observed by using ZnO excitation wavelengths indicating energy transfer from ZnO to Eu3+ ion. (C) 2003 Elsevier B.V. (USA). All rights reserved.
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Journal of Solid State Chemistry. San Diego: Academic Press Inc. Elsevier B.V., v. 171, n. 1-2, p. 287-290, 2003.