Luminescence and mechanoluminescence of Ba4Si6O16:Eu2+, RE phosphors
Résumé
The luminescence properties of green Ba4Si6O16:Eu2+, rare-earths (RE) (RE = Sc, Y, La and Lu except Pm) phosphors are reported. Their long-lasting phosphorescence is discussed in view trap depths concentrations determined from thermally stimulated experiments. A second emission band centered at 439 nm was evidenced low temperatures, which stems the substitution Eu2+ two non-equivalent Ba2+ sites Ba4Si6O16. mechanoluminescence RE described, a new mechanism proposed, case where Ho3+, involving distribution 0.694 to 0.924 eV. Mechanical loading (post UV irradiation) induces decrease depth distribution, leading an increase intensity, whereas drop intensity observed upon unloading, following faster release charge carriers.
Fichier principal
Duval et al-2023-Luminescence and mechanoluminescence of.pdf (1.01 Mo)
Télécharger le fichier
| Origine | Fichiers produits par l'(les) auteur(s) |
|---|---|
| Licence |
