Temperature-dependent luminescence characteristics of Dy3+ doped in various crystalline hosts
Temperature-dependent luminescence characteristics of Dy3+ doped in various crystalline hosts
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DOI：
10.1016/j.jlumin.2018.07.032
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发表时间：
2018-12-01
影响因子：
3.6
通讯作者：
Zigan, Lars
中科院分区：
文献类型：
--
作者：
Hertle, Ellen;Chepyga, Liudmyla;Zigan, Lars
在300-1650 K温度范围内，研究了基质晶体和掺杂敏化剂（Er ~（3+），Pr ~（3+））对Dy ~（3+）发光特性的影响。特别强调了相应材料作为光学温度传感器的可用性，特别是在高温极端环境下。评价了五种基本主体，即YAG、雅普、YSO、YSZ和CASO，并且关于主体化合物（例如通过添加B3+ -N3-）或通过添加敏化剂略微变化。使用扫描电子显微镜成像和X射线衍射法研究了颗粒尺寸和形态。记录激发光谱和随温度变化的发光发射，并从绝对强度、寿命、强度比和灵敏度方面进行分析。对于雅普：Dy 3+和YAG：Dy 3+的变体，在主体化合物中掺入B3+-N3-或添加Er 3+作为敏化剂的情况下，观察到关于低寿命和高猝灭温度、绝对强度和灵敏度的最佳组合。
The effects of the crystalline host and the incorporation of a sensitizer (Er3+, Pr3+) on the temperature-dependent luminescence characteristics of Dy3+ were studied in a temperature range of 300-1650 K. Special emphasis was put on the usability of the respective materials as an optical temperature sensor, especially for extreme environments at high temperatures. Five base hosts, namely YAG, YAP, YSO, YSZ and CASO were evaluated and slightly varied regarding the host compounds (e.g. by adding B3+ -N3-) or by adding a sensitizer. Particle sizes and morphology were studied using scanning electron microscope imaging and X-ray diffractometry. Excitation spectra and temperature-dependent luminescence emission were recorded and analyzed with respect to absolute intensities, lifetime, intensity ratio and sensitivity. The best combination regarding low lifetime and high quenching temperature, absolute intensity and sensitivity was observed for YAP:Dy3+ and variations of YAG:Dy3+ with either incorporation of B3+-N3- in the host compound or the addition of Er3+ as a sensitizer.