Linear response fluorescent temperature-sensing properties based on Stark sublevels of Er3+-doped Pb(Mg1/3Nb2/3)O3-PbTiO3-Pb(Yb1/2Nb1/2)O3 ceramics
Linear response fluorescent temperature-sensing properties based on Stark sublevels of Er3+-doped Pb(Mg1/3Nb2/3)O3-PbTiO3-Pb(Yb1/2Nb1/2)O3 ceramics
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DOI：
10.1016/j.ceramint.2018.04.067
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发表时间：
2018-08
影响因子：
5.2
通讯作者：
Teng Zheng;L. Luo
中科院分区：
文献类型：
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作者：
Teng Zheng;L. Luo
Er 3+掺杂的0.84（PMN-PT）−0.14PYN陶瓷被用作温度敏感材料。所得化合物在980 nm半导体激光激发下具有很强的可见上转换荧光。由于Stark分裂效应，Er ~（3+）的2 H ~（11/2）、4S ~（3/2）和4F ~（9/2）能级分别分裂成两个Stark子能级。在133-573 K的温度范围内计算了这些子能级之间的荧光强度比（FIR），发现FIR与温度呈线性关系。A/B的FIR显示出较宽的温度传感范围，灵敏度相对较低，为0.003 K−1。同时，E/C的灵敏度最高，为0.0134 K− 1，但温度范围最小，为453-573 K。FIR技术为我们提供了一种在宽温度范围内具有恒定灵敏度的光学测温方法。
The Er3+doped 0.84(PMN-PT)−0.14PYN ceramics were employed as a temperature-sensing material. The obtained compounds exhibit strong visible upconversion (UC) fluorescence under a 980-nm diode laser excitation. On account of the Stark split effect, the2H11/2,4S3/2, and4F9/2levels of Er3+split into two Stark sublevels, respectively. The fluorescence intensity ratios (FIR) between these sublevels were calculated in a temperature range of 133–573 K, and a linear FIR vs. temperature relation has been found. FIR of A/B shows a wide temperature sensing range with a relatively low sensitivity of 0.003 K−1. Meanwhile E/C illustrates the highest sensitivity of 0.0134 K−1but in the smallest temperature range 453–573 K. FIR technique provides us a optical thermometric method with constant sensitivity in a wide temperature range.