Temperature sensing characteristics and first-principles simulation of Gd-doped NaY(WO4)2 phosphors

doi:10.1016/j.physb.2022.414351

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	Temperature sensing characteristics and first-principles simulation of Gd-doped NaY(WO4)2 phosphors
	H. B. Li; J. Q. Zhao; W. J. Yang; T. Q. Zhang; M. J. Chen; W. L. Yang; H. Y. Sha; C. Li; H. S. Liu; Y. T. Li; Z. M. Shi; S. L. Zhang; H. Lin; F. M. Zeng and Z. M. Su
	2022
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	647 页码:9
摘要	Up-conversion luminescence (UCL) materials have potential applications in many fields. In this work, NaY (WO4)2(NYW):1 mol%Ho3+/25 mol%Yb3+ up-conversion luminescent materials doped with different Gd3+ ion concentrations were synthesized by high-temperature solid-state method. X-ray diffraction and infrared ab-sorption spectra show that the incorporation of Gd3+ ions increases the lattice parameters and changes the stretching vibration of O-W-O bonds. The properties of the obtained UCL materials were also studied under the excitation of a 980 nm laser. All the samples show strong green and red up-conversion emission peaks centered at 542 nm and 645 nm, which correspond to the Ho3+ ion 5F4/5S2 -> 5I8 and 5F5 -> 5I8 energy levels, respectively. The pumping power coefficient shows that the emission at 542 nm and 645 nm is a two-photon process. The tem-perature dependence of the red-green emission ratio under 980 nm excitation was studied in the range of 343 K-693 K. According to thermal quenching theory, the fluorescence intensity ratio (FIR) is a function of tem-perature, and the sensitivity of the obtained phosphor reaches its maximum value at 343 K. These results show that NYW:Ho/Yb/Gd UCL is worthy of further study due to its potential for applications in the fields of up -conversion lasers, bioluminescence labeling, and temperature sensing.
DOI	10.1016/j.physb.2022.414351
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67156
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. B. Li,J. Q. Zhao,W. J. Yang,et al. Temperature sensing characteristics and first-principles simulation of Gd-doped NaY(WO4)2 phosphors[J]. Physica B-Condensed Matter,2022,647:9.
APA	H. B. Li.,J. Q. Zhao.,W. J. Yang.,T. Q. Zhang.,M. J. Chen.,...&F. M. Zeng and Z. M. Su.(2022).Temperature sensing characteristics and first-principles simulation of Gd-doped NaY(WO4)2 phosphors.Physica B-Condensed Matter,647,9.
MLA	H. B. Li,et al."Temperature sensing characteristics and first-principles simulation of Gd-doped NaY(WO4)2 phosphors".Physica B-Condensed Matter 647(2022):9.

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