White light generation of glass ceramics containing Ba2LaF7:Eu2+, Tb3+ and Sm3+ nanocrystals
Chinese Optics Letters, Vol. 10, Issue 3, pp. 031602- (2012)
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Abstract
The Eu2+/Tb3+/Sm3+ co-doped oxyfluoride glass ceramics containing Ba2LaF7 nanocrystals are prepared in the reducing atmosphere. The X-ray diffraction results show that Eu2+, Tb3+ and Sm3+ ions are enriched into the precipitated Ba2LaF7 nanophase after the annealing process. It deduces efficient energy transfers from Eu2+ to Tb3+ and Sm3+ and intenses warm white luminescence of the glass ceramics. Comparing with the glass, the luminescence quantum yield of the glass ceramics is also enlarged by about 3 times. This demonstrates the potential white light-emitting diode application of the glass ceramics produced in this letter.
© 2012 Chinese Optics Letters
OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.5690) Materials : Rare-earth-doped materials
(160.6990) Materials : Transition-metal-doped materials
ToC Category:
Materials
Citation
Yang Xu, Shuo Cui, Hengyi Fu, Jiangyun Qian, Qun Luo, Xusheng Qiao, Xianping Fan, and Xianghua Zhang, "White light generation of glass ceramics containing
Ba2LaF7:Eu2+, Tb3+ and
Sm3+ nanocrystals," Chin. Opt. Lett. 10, 031602- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-3-031602
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