| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1497422 | Optical Materials | 2006 | 5 Pages |
Abstract
In this paper, high concentration (up to 40% of rare earth with respect to the metal oxides) Eu3+-doped ZrO2, Y2O3 and ZrO2–Y2O3 systems were prepared both as bulk material and as nanoparticles embedded in SiO2. The latter nanocomposites were obtained as a result of a thermal treatment at 1000 °C of powder samples prepared by the sol–gel method. The combination of transmission electron microscopy (TEM), X-ray scattering (WAXS) and photoluminescence (PL) spectroscopy enabled us to obtain detailed information about morphology and composition of the rare earth-doped nanoparticles. In particular, for nanostructured samples, high luminescence has been observed in spite of a very high rare earth concentration in the active host.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
P. Riello, S. Bucella, D. Brunelli, F. Fossa, A. Benedetti, E. Trave, P. Mazzoldi,