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Article Dans Une Revue Journal of Rare Earths Année : 2012

Preparation and luminescence properties of Ce3+/Dy3+-codoped fluorosilicate glass ceramics

Résumé

The Ce3+and Dy3+ co-doped fluorosilicate glass and glass ceramics containing SrF2 or CeF3 nanocrystals were prepared under reducing atmosphere. The precipitated nano-crystalline phase shifted from cubic SrF2 to hexagonal CeF3 gradually with the heat treatment temperature increasing from 620 to 680 °C. The glass and glass ceramics emitted white light, deriving from a combination of the Ce3+ blue and the Dy3+ yellow light. The CIE coordinates could be tuned by adjusting the ratio of Ce3+/Dy3+ concentration. The luminescence could be enhanced significantly by annealing the samples at the temperatures lower than 640 °C.

Domaines

Matériaux

Dates et versions

hal-00848918 , version 1 (29-07-2013)

Identifiants

Citer

Shuo Cui, Daliang Zhao, Jinglu Huang, Hengyi Fu, Jiangyun Qian, et al.. Preparation and luminescence properties of Ce3+/Dy3+-codoped fluorosilicate glass ceramics. Journal of Rare Earths, 2012, 30 (4), pp.304-309. ⟨10.1016/S1002-0721(12)60042-8⟩. ⟨hal-00848918⟩
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