Anzeige
Erschienen in:
01.08.2011
Solid state synthesis, microstructure and photoluminescence of Eu3+ and Tb3+ activated strontium tungstate
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 8/2011
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
The Eu3+ and Tb3+ ions activated SrWO4 phosphors have been synthesized by solid state method. The crystal structures and morphologies of the products are characterized by Powders X-ray Diffraction (XRD) and scanning electronic microscopy (SEM). The results indicated that both SrWO4:Eu3+ and SrWO4:Tb3+ phosphors belong to tetragonal phase, and the particles of the phosphors become aggregate with the increase of calcinations temperature. Analyzed by luminescent spectra, the dominant emission of Eu3+ in SrWO4, which is the typical hypersensitive transition 5D0 → 7F2 (613 nm), and the green emission (5D4 → 7F5) intensity of Tb3+ in SrWO4:Tb3+ is also dominant. The reaction temperature had obvious influence on the luminescent properties. The intensity reached the strongest when it is sintered at 900 °C. Therefore, we can try to select the right temperature in order to obtain the ideal product.