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|title: ||Structural and optical properties of Er3+ ion in sol-gel grown LiNbO3|
|authors: ||Graça, M.P.F.|
|keywords: ||Inorganic compounds|
PZT ceramics, etc.
|issue date: ||2007|
|abstract: ||Er-doped lithium niobate (LiNbO3) ceramics embedded in silica were grown by the sol–gel method. The dried gel 91SiO2–4Li2O–4Nb2O5–Er2O3 (mol%) was subsequently heat treated between 500 and 750 °C. X-ray diffraction and Raman spectroscopy have detected the crystallization of LiNbO3 and ErNbO4 in samples treated at temperatures above 600 °C. At least two Er-related optical centres have been identified by low-temperature optical absorption and photoluminescence studies. The dominant intra-ionic transition arises from the Er3+ ion, in C2v site symmetry, in the ErNbO4 lattice.|
|publisher version/DOI: ||dx.doi.org/10.1088/0953-8984/19/1/016213|
|source: ||Journal of Physics Condensed Matter|
|appears in collections||FIS - Artigos|
I3N - Artigos
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