Y<inf>2</inf>O<inf>3</inf>:Eu<sup>3+</sup>,Tb<sup>3+</sup> thin films prepared by sol-gel method: Structural and optical studies

A. De J. Morales Ramírez, A. García Murillo, F. De J. Carrillo Romo, M. García Hernández, E. De La Rosa, J. Moreno Palmerin

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Y2O3: Eu3+,Tb3+ transparent, high density and optical quality thin films were prepared by the sol-gel dip-coating technique. Yttrium (III) 2,4-pentadionate was used as a precursor by its hydrolysis in ethanol. The doping agents were incorporated in the form of europium and terbium nitrate. Structural, morphological and optical properties of prepared films were investigated for different annealing temperatures in order to establish the ideal processing route that enhances the luminescent properties. X-ray diffraction (XRD) analysis shows the cubic phase for 10-layer films and annealing temperatures higher than 500°C. At 700°C, highly densified (4.52 g cm-3) and very smooth films (1.4 nm at 700°C) are produced, composed of crystallites with a grain size of 11 nm. The film thickness, refractive index and porosity, as well as the luminescent properties, were found to vary with treatment temperature. © Springer Science+Business Media, LLC 2011.
Original languageAmerican English
Pages (from-to)366-373
Number of pages328
JournalJournal of Sol-Gel Science and Technology
DOIs
StatePublished - 1 May 2011
Externally publishedYes

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