Environment segregation of Er3+ emission in bulk sol-gel-derived SiO2-SnO2 glass ceramics

Tran T.T. Van (1) , Sylvia Turrell (2) , Bruno Capoen (3) , Le van Hieu (4) , Maurizio Ferrari (5) , Davor Ristic (6) , L. Boussekey (2) , C. Kinowski (3)

1 VNU-HCM - Vietnam National University, Ho Chi Minh City / Đại học Quốc gia TP. Hồ Chí Minh
2 LASIRE - Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516
3 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
4 VNU - Vietnam National University [Hanoï]
5 CSMFO - Caratterizzazione e Sviluppo di Materiali per la Fotonica e l'Optoelecttronica
6 IFN - CNR Institute for Photonics and Nanotechnologies

Er-doped (100-x) SiO2-x SnO2 glass-ceramic monoliths were prepared using a sol-gel method. Raman spectroscopic measurements showed the structural evolution of the silica matrix caused by the formation and the growth of SnO2 nanocrystals. Analysis of the photoluminescence properties shows that the quantity of Er3+ ions embedded in the vicinity of SnO2 nanocrystals could be controlled by the SnO2 concentration. We give spectroscopic evidence of energy transfer to erbium ions provided by SnO2 nanocrystals in the silica matrix. The 4I13/2 level decay curves present a double-exponential profile with two lifetimes associated to rare-earth ions in two different environments.

Domaines: Optique [physics.optics]

Tran T.T. Van, Sylvia Turrell, Bruno Capoen, Le van Hieu, Maurizio Ferrari, et al.. Environment segregation of Er3+ emission in bulk sol-gel-derived SiO2-SnO2 glass ceramics. Journal of Materials Science, 2014, 49 (24), pp.8226-8233. ⟨10.1007/s10853-014-8531-6⟩. ⟨hal-01057706⟩