A bridge role of Tb^{3 +} in broadband excited Sr₃Y(PO₄)₃:Ce^{3 +}, Tb^{3 +}, Sm^{3 +} phosphors with superior thermal stability

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• 作者：Zhihua Leng^a ; Liping Li^a ; ^{lipingli@jlu.edu.cn} ; Xiangli Che^b ; Guangshe Li^a ; ^{guangshe@jlu.edu.cn}
• 关键词：Metal-metal charge transfer quenching ; Energy transfer ; Tunable photoluminescence ; Thermal stability
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：118
• 期：Complete
• 页码：245-255
• 全文大小：2973 K
• 卷排序：118

文摘

High doping concentration of Tb3 + suppresses Ce3 +-Sm3 + metal-metal charge transfer quenching in Sr3Y(PO4)3 host. The energy transfer mechanisms and efficiencies were uncovered through a systematic investigation. The phosphor showed a superior thermal stability up to 493K, at which photoluminescence intensity still remained at 85.3%.