期刊
OPTICS EXPRESS
卷 24, 期 20, 页码 22438-22447出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.022438
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资金
- National Science Foundation of China (NSFC) [51572195]
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
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