| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5403344 | Journal of Luminescence | 2007 | 5 Pages |
Abstract
Blue-green and red photoluminescence (PL) emission in structurally disordered CaTiO3:Sm (CT:Sm) powders was observed at room temperature with laser excitation at 350.7Â nm. The perovskite-like titanate CT:Sm powders prepared by a soft chemical processing at different temperatures of annealing were structurally characterized by X-ray diffraction (XRD) and X-ray absorption near-edge structure (XANES). The results indicate that the generation of the broad PL band is related to order-disorder degree in the perovskite-like structure.
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Authors
Alberthmeiry T. de Figueiredo, Valéria M. Longo, Sérgio de Lazaro, Valmor R. Mastelaro, Fábio S. De Vicente, Antônio C. Hernandes, Máximo Siu Li, José A. Varela, Elson Longo,