中国科学院长春光学精密机械与物理研究所

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	Upconversion enhancement through engineering the local crystal field in Yb3+ and Er3+ codoped BaWO4 along with excellent temperature sensing performance
	G. T. Xiang, Z. Liu, Z. Y. Yang, Y. J. Wang, L. Yao, S. Jiang, X. J. Zhou, L. Li, X. J. Wang and J. H. Zhang
	2023
发表期刊	Journal of Materials Chemistry C
ISSN	2050-7526
卷号	11期号:46页码:16310-16315
摘要	High-efficiency upconversion (UC) luminescence has been a hot topic in the development of optical materials. In this study, an extremely strong green UC is successfully achieved in the BaWO4:Yb3+/Er3+ phosphor through engineering the local environment around the luminescent centers, realized by Ca2+ doping. The green UC intensity of Ca2+ doped BaWO4:Yb3+/Er3+ is 6.5 and 2.3 times stronger than that of BaWO4:Yb3+/Er3+ and CaWO4:Yb3+/Er3+, respectively. Eu3+ ions are employed as the structure probe to detect the evolution of the crystal field symmetry with the increase of Ca2+ doping concentration, the results of which match well with the corresponding variation of the UC spectra. Meanwhile, the BaWO4:Yb3+/Er3+/Ca2+ exhibits excellent temperature sensing performance based on the fluorescence intensity ratio (FIR) between the thermally coupled H-2(11/2) and S-4(3/2) states of Er3+ ions. Its absolute sensitivity and relative sensitivity for optical thermometry can reach 1.21% K-1 and 1.31% K-1, outperforming the majority of the same type optical thermometers. The temperature resolution of the present thermometer remains lower than 0.1 K within the temperature range of 298 K to 573 K. The intense green UC luminescence along with the outstanding thermal properties makes the BaWO4:Yb3+/Er3+ phosphor a promising candidate for optical thermometry.
DOI	10.1039/d3tc03386d
URL	查看原文
收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68040
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	G. T. Xiang, Z. Liu, Z. Y. Yang, Y. J. Wang, L. Yao, S. Jiang, X. J. Zhou, L. Li, X. J. Wang and J. H. Zhang. Upconversion enhancement through engineering the local crystal field in Yb3+ and Er3+ codoped BaWO4 along with excellent temperature sensing performance[J]. Journal of Materials Chemistry C,2023,11(46):16310-16315.
APA	G. T. Xiang, Z. Liu, Z. Y. Yang, Y. J. Wang, L. Yao, S. Jiang, X. J. Zhou, L. Li, X. J. Wang and J. H. Zhang.(2023).Upconversion enhancement through engineering the local crystal field in Yb3+ and Er3+ codoped BaWO4 along with excellent temperature sensing performance.Journal of Materials Chemistry C,11(46),16310-16315.
MLA	G. T. Xiang, Z. Liu, Z. Y. Yang, Y. J. Wang, L. Yao, S. Jiang, X. J. Zhou, L. Li, X. J. Wang and J. H. Zhang."Upconversion enhancement through engineering the local crystal field in Yb3+ and Er3+ codoped BaWO4 along with excellent temperature sensing performance".Journal of Materials Chemistry C 11.46(2023):16310-16315.

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