In this study we investigate the role of traps on radio- and photo-luminescence properties of terbium doped silica. The investigation is motivated by the promising characteristics of rare-earth doped silica obtained by the sol-gel technique as scintillating material. We focus on those phenomena that can be responsible for problematic properties such as the increase of radio-luminescence sensitivity following repeated irradiations. A set of terbium doped silica with different terbium concentrations (0.03 mo1%, 0.1 mo1% and 10 mo1%) prepared by the sol-gel technique and densified at 1050 °C in oxidizing atmosphere has been considered. The effect of a post-densification rapid thermal treatment on the RL and PL properties has also been investigated. This treatment improved the scintillation characteristics of the samples reducing their RL instability under prolonged irradiation.

Fasoli, M., Chiodini, N., Lauria, A., Moretti, F., Vedda, A. (2007). Effect of deep traps on the optical properties of Tb3+ doped sol-gel silica. PHYSICA STATUS SOLIDI. C, CURRENT TOPICS IN SOLID STATE PHYSICS, 4(3), 1056-1059 [10.1002/pssc.200673880].

Effect of deep traps on the optical properties of Tb3+ doped sol-gel silica

FASOLI, MAURO;CHIODINI, NORBERTO;LAURIA, ALESSANDRO;MORETTI, FEDERICO;VEDDA, ANNA GRAZIELLA
2007

Abstract

In this study we investigate the role of traps on radio- and photo-luminescence properties of terbium doped silica. The investigation is motivated by the promising characteristics of rare-earth doped silica obtained by the sol-gel technique as scintillating material. We focus on those phenomena that can be responsible for problematic properties such as the increase of radio-luminescence sensitivity following repeated irradiations. A set of terbium doped silica with different terbium concentrations (0.03 mo1%, 0.1 mo1% and 10 mo1%) prepared by the sol-gel technique and densified at 1050 °C in oxidizing atmosphere has been considered. The effect of a post-densification rapid thermal treatment on the RL and PL properties has also been investigated. This treatment improved the scintillation characteristics of the samples reducing their RL instability under prolonged irradiation.
Articolo in rivista - Articolo scientifico
Deep traps; Doped silica; Luminescence properties; Oxidizing atmospheres; Radio-luminescence; Rapid thermal treatment; Rare-earth doped; Scintillation characteristics; Sol-gel technique
English
2007
4
3
1056
1059
none
Fasoli, M., Chiodini, N., Lauria, A., Moretti, F., Vedda, A. (2007). Effect of deep traps on the optical properties of Tb3+ doped sol-gel silica. PHYSICA STATUS SOLIDI. C, CURRENT TOPICS IN SOLID STATE PHYSICS, 4(3), 1056-1059 [10.1002/pssc.200673880].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/27912
Citazioni
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 15
Social impact