Color-tunable upconversion photoluminescence and highly performed optical temperature sensing in Er3+/Yb3+ co-doped ZnWO4
Color-tunable upconversion photoluminescence and highly performed optical temperature sensing in Er3+/Yb3+ co-doped ZnWO4
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Er3 /Yb3 共掺杂 ZnWO4 中的颜色可调上转换光致发光和高性能光学温度传感
DOI：
10.1364/oe.24.022438
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发表时间：
2016-10-03
期刊：
影响因子：
3.8
通讯作者：
Yao, Xi
中科院分区：
文献类型：
--
作者：
Chai, Xiaona;Li, Jun;Yao, Xi
采用固相反应法合成了Er 3 +/Yb 3+共掺杂ZnWO 4荧光粉，并对其结构、光致发光和温敏性能进行了表征。通过增加Er 3 +/Yb 3+掺杂浓度，观察到了颜色可调的上转换发光（从绿色到红色）。利用荧光强度比技术研究了该材料在83-583 K温度范围内的温度敏感特性，获得了良好的性能。在583 K时，最大灵敏度为0.0099 K ~（-1）. XRD Rietveld精修结果表明，室温下样品为单斜晶系，空间群为P2/c（13）。结果表明，磷光体可能是下一代基于发光的温度传感设备以及多种生物标记的特殊选择。(C)2016美国光学学会
Er3+/Yb3+ co-doped ZnWO4 phosphors were synthesized by a solid state reaction method and their structure, photoluminescence and temperature sensing properties were characterized. The color-tunable upconversion emissions (from green to red) were observed by increasing the doped Er3+/Yb3+ concentration. The temperature sensing properties were studied by using the fluorescence intensity ratio technique in the temperature range of 83-583 K, and high performance was obtained. The maximum sensitivity is found to be 0.0099 K-1 at 583 K. The XRD Rietveld refinement revealed that the phosphors crystallized in monoclinic structure with the space group P2/c (13) at room temperature. The results suggest that the phosphors could be an exceptional choice for next generation luminescence-based temperature sensing devices as well as in multiple biolabels. (C) 2016 Optical Society of America