Enhanced up-conversion luminescence and temperature sensing property of Ba Sr Lu4O9:Tm3+/Yb3+ phosphors
Enhanced up-conversion luminescence and temperature sensing property of Ba Sr Lu4O9:Tm3+/Yb3+ phosphors
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DOI：
10.1016/j.ceramint.2021.08.123
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发表时间：
2021-08
影响因子：
5.2
通讯作者：
Xing Zhang;Haihong Zheng;Jia-Xu Hu;Fumin Lu;Xiusha Peng;Rongfei Wei;Fangfang Hu;Hai Guo
中科院分区：
文献类型：
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作者：
Xing Zhang;Haihong Zheng;Jia-Xu Hu;Fumin Lu;Xiusha Peng;Rongfei Wei;Fangfang Hu;Hai Guo
近年来，改进的上转换发光和上转换材料在光学温度传感器中的应用引起了人们越来越多的关注。在这里，我们报道了一系列新的Ba3-xSrxLu4O9(B3-xSxLO):Tm3+/Yb3+荧光粉。通过设计Yb3+→Tm3+的能量转移，并通过阳离子取代改变激活离子的局部晶格环境，实现了在980 nm激光激发下Tm3+ UC发光的高效增强。具有代表性的B2.2S0.8LO:Tm3+/Yb3+样品在428 K时的相对灵敏度为0.88%，在573 K时的绝对灵敏度为1.50%，具有良好的温度传感性能，传感范围宽，稳定性好。结果表明，B3-xSxLO:Tm3+/Yb3+是光学测温的理想候选材料。
Improved up-conversion (UC) luminescence and applications in optical temperature sensors of up-converting materials have attracted growing interest in recent years. Here, we reported a new series of Ba3-xSrxLu4O9(B3-xSxLO):Tm3+/Yb3+phosphors. By designing Yb3+→Tm3+energy transfer and modifying the local lattice environment of activator ions via cationic substitution, highly efficient enhancement of UC luminescence of Tm3+is realized when excited by a 980 nm laser. Moreover, the representative B2.2S0.8LO:Tm3+/Yb3+sample displays superior temperature sensing behaviors with highly relative sensitivity of 0.88 % at 428 K, absolute sensitivity of 1.50 % at 573 K, wide sensing range and good stability. All of findings reveal that B3-xSxLO:Tm3+/Yb3+are promising candidates for optical thermometry.