Highly efficient upconversion emission of Er3+ in delta-Sc4Zr3O12 and broad-range temperature sensing

doi:10.1039/c8cp02217h

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	Highly efficient upconversion emission of Er3+ in delta-Sc4Zr3O12 and broad-range temperature sensing
	Liu, W.; Pan, G. H.; Hao, Z. D.; Zhang, L. L.; Zhang, X.; Luo, Y. S.; Zhao, H. F.; Wu, H. J.; Zhang, J. H.
	2018
发表期刊	Physical Chemistry Chemical Physics
ISSN	1463-9076
卷号	20 期号:21 页码:14461-14468
摘要	Developing optical temperature sensors with a wider range, higher sensitivity and repeatability based on Er3+/Yb3+ doped upconverting phosphors has always been at the forefront of temperature measurement technologies. Here, we report the intense green upconversion luminescence in Er3+/Yb3+ doped -Sc4Zr3O12 for the first time and its temperature sensing performance is investigated. The structure of -Sc4Zr3O12 is given by Rietveld refinement of XRD data and the site occupancy of Er3+ ions has been determined. Compared with cubic Sc2O3 and ZrO2, under 972 nm excitation, the green emission from Er3+ centers in Sc4Zr3O12 is increased by 59-fold and 264-fold, respectively. By experimental analysis, this enhancement of upconversion luminescence is attributed to the low-symmetrical environment of Er3+, generation of Yb3+ clusters and high internal efficiency of Yb3+ emission in Sc4Zr3O12. In addition, the fluorescence intensity ratio of two green emission bands (H-2(11/2)/S-4(3/2) I-4(15/2)) is studied as a function of temperature ranging from 303 to 793 K in Sc4Zr3O12. The maximum sensitivity observed via calculation is 0.00634 K-1 at 573 K, and the sensitivity is still as high as 0.00534 K-1 at 793 K. The stability of a Sc4Zr3O12 thermometer is also examined via a recycling test. These findings suggest that -Sc4Zr3O12 is a promising upconversion host and could achieve high-sensitivity optical temperature sensing with a wide measuring range.
关键词	sensor nanoparticles nanocrystals luminescence mechanisms ceramics Chemistry Physics
DOI	10.1039/c8cp02217h
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60687
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	Liu, W.,Pan, G. H.,Hao, Z. D.,et al. Highly efficient upconversion emission of Er3+ in delta-Sc4Zr3O12 and broad-range temperature sensing[J]. Physical Chemistry Chemical Physics,2018,20(21):14461-14468.
APA	Liu, W..,Pan, G. H..,Hao, Z. D..,Zhang, L. L..,Zhang, X..,...&Zhang, J. H..(2018).Highly efficient upconversion emission of Er3+ in delta-Sc4Zr3O12 and broad-range temperature sensing.Physical Chemistry Chemical Physics,20(21),14461-14468.
MLA	Liu, W.,et al."Highly efficient upconversion emission of Er3+ in delta-Sc4Zr3O12 and broad-range temperature sensing".Physical Chemistry Chemical Physics 20.21(2018):14461-14468.

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