Upconversion luminescence and temperature sensing characteristics of Yb3+/Tm3+:KLa(MoO4)2 phosphors
Upconversion luminescence and temperature sensing characteristics of Yb3+/Tm3+:KLa(MoO4)2 phosphors
复制标题
Yb3 /Tm3 :KLa(MoO4)2 荧光粉的上转换发光和温度传感特性
DOI：
10.1039/d0dt03979a
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发表时间：
2021-02-07
影响因子：
4
通讯作者：
Liu, Hang
中科院分区：
文献类型：
--
作者：
Zhang, Yuhong;Wang, Bo;Liu, Hang
采用水热法合成了Yb3+/Tm3+共掺的KLa(MoO4)(2)荧光粉。在980 nm激发下，观察到了荧光粉的上转换发射光谱。研究了基于荧光强度比的温度传感特性。最大灵敏度在453K时达到2.93%K~(-1)，非热耦合能级的灵敏度高于热耦合能级。结果表明，KLa(MoO_4)(2)：Yb~(3+)/Tm~(3+)荧光粉可用于温度传感器。
Yb3+/Tm3+ codoped KLa(MoO4)(2) phosphors are synthesized by a hydrothermal method. Under 980 nm excitation, the upconversion (UC) emission spectra of the phosphors are observed. The temperature sensing characteristic based on the fluorescence intensity ratio is studied. The maximum sensitivity reaches 2.93% K-1 at 453 K. The sensitivity value of non-thermally coupled levels is higher than that of thermally coupled levels. The results indicate that the KLa(MoO4)(2):Yb3+/Tm3+ phosphor could be used in temperature sensors.