Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions

被引：95
作者：
Caldino, U.
Speghini, A.
Bettinelli, M.
机构：
[1] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico
[2] Univ Verona, Dipartimento Sci & Technol, I-37314 Verona, Italy
[3] UDR Verona, INSTM, I-37314 Verona, Italy
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2006年 / 18卷 / 13期
关键词：
D O I：
10.1088/0953-8984/18/13/017
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The photoluminescence of Ce3+ and Tb3+ ions in zinc metaphosphate glasses is investigated. The blue and green emissions of Tb3+ ions are enhanced upon UV excitation through energy transfer from Ce3+ to Tb3+ ions. The efficiency of such an energy transfer was estimated based on spectroscopic data and resulted in being about 20-23%. Spectroscopic data revealed that the energy transfer occurs via a non-radiative process inside Ce3+-Tb3+ clusters formed in the glass. This ion clustering could be useful for the design of efficient conversion phosphors of ultraviolet to blue and green light.
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收藏
页码：3499 / 3508
页数：10
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