Excellent photoluminescence and temperature sensing properties in Ho3+/Yb3+ codoped (Y0.88La0.09Zr0.03)2O3 transparent ceramics
Excellent photoluminescence and temperature sensing properties in Ho3+/Yb3+ codoped (Y0.88La0.09Zr0.03)2O3 transparent ceramics
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DOI：
10.1016/j.ceramint.2019.01.070
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发表时间：
2019-04
影响因子：
5.2
通讯作者：
Jun Zhou;C. Yaqian;Ruoshan Lei;Huanping Wang;Qingong Zhu;Wang Xingming;Wu Yuqian;Qinghua Yang
中科院分区：
文献类型：
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作者：
Jun Zhou;C. Yaqian;Ruoshan Lei;Huanping Wang;Qingong Zhu;Wang Xingming;Wu Yuqian;Qinghua Yang
采用高温固相反应法制备了Ho 3 +/Yb 3+共掺杂（Y0.88La0.09Zr0.03）2 O3透明陶瓷。扫描电镜观察表明，试样的晶界上没有明显的杂质和气孔。因此，所有样品在可见光和近红外范围内显示出优异的透明度。在980 nm激发下，观察到Ho 3+离子的强绿色发射峰位于549 nm，红光发射峰位于667和756 nm，近红外发射峰位于2 μm。利用荧光强度比（FIR）技术，研究了最佳样品（Yb 0. 03 Ho 0. 01 Y 0. 84 La 0. 09 Zr 0. 03）2 O3在不同激发功率密度下基于5 F4/5S 2和5 F5非热耦合能级的温度敏感行为.温度测量被发现是免疫的激发功率密度，导致一致的校准曲线和传感灵敏度在不同的功率密度。在563 K时，最大灵敏度为71.28 × 10−4K− 1。结果表明，Ho 3 +/Yb 3+共掺（Y0.88La0.09Zr0.03）2 O3透明陶瓷在温度传感器、显示器件和2 μm固体激光器等方面具有良好的应用前景。
Ho3+/Yb3+codoped (Y0.88La0.09Zr0.03)2O3transparent ceramics were prepared by a high temperature solid-state reaction method. SEM observation confirms that there are no obvious impurities or pores existed in the grain boundaries of the samples. Accordingly, all the samples show excellent transparency in the visible and near-infrared range. Upon 980 nm excitation, strong green emission peaked at 549 nm, red emissions centered at 667 and 756 nm, as well as near infrared emission located at 2 µm respectively from Ho3+ions are observed. By utilizing the fluorescence intensity ratio (FIR) technique, the temperature sensing behaviors of the optimal sample (Yb0.03Ho0.01Y0.84La0.09Zr0.03)2O3are investigated at different excitation power densities based on the non-thermally coupled levels of5F4/5S2and5F5. The thermometry is found to be immune to the excitation power density, leading to the consistent calibration curves and sensing sensitivities at the different power densities. The maximal sensing sensitivity is about 71.28 × 10−4K−1at 563 K. The results indicate that the Ho3+/Yb3+codoped (Y0.88La0.09Zr0.03)2O3transparent ceramics are promising for the temperature sensors, display devices and 2 µm solid-state lasers.