Multiple lattice sites occupied AlTaO4:Cr3+phosphor for luminescence ratiometric thermometry and NIR light source

doi:10.1016/j.jallcom.2023.172544

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	Multiple lattice sites occupied AlTaO4:Cr3+phosphor for luminescence ratiometric thermometry and NIR light source
	L. P. Jiang; L. L. Zhang; X. Jiang; G. C. Lv and Y. J. Su
	2024
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	970 页码:7
摘要	Cr3+-doped near infrared (NIR) phosphors have promising applications in NIR light sources and optical temperature detection. The development of materials with high relative sensitivity and efficient broadband NIR luminescence is the key. In this paper, we report a new multifunctional NIR phosphor AlTaO4:Cr3+, which contains both narrow-band emission associated with 2Eg+4A2 g transition and broadband emission induced by the 4T2 g+4A2 g transition owing to Cr3+ occupies both AlO6 and TaO6 lattice sites. The R-line (2Eg+4A2 g) emission and its anti-Stokes phonon sideband emission follow the Boltzmann distribution, and the thermometer constructed accordingly reaches a maximum Sr of 1% K-1 at 110 K. Under 425 nm excitation, the broad emission band (FWHM = 200 nm) reaches maximum at 880 nm with an internal quantum efficiency of 62.8%. The NIR LEDs prepared with AlTaO4:Cr3+ confirm the application value in NIR light sources.
DOI	10.1016/j.jallcom.2023.172544
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收录类别	sci
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/181722/67558
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	L. P. Jiang,L. L. Zhang,X. Jiang,et al. Multiple lattice sites occupied AlTaO4:Cr3+phosphor for luminescence ratiometric thermometry and NIR light source[J]. Journal of Alloys and Compounds,2024,970:7.
APA	L. P. Jiang,L. L. Zhang,X. Jiang,&G. C. Lv and Y. J. Su.(2024).Multiple lattice sites occupied AlTaO4:Cr3+phosphor for luminescence ratiometric thermometry and NIR light source.Journal of Alloys and Compounds,970,7.
MLA	L. P. Jiang,et al."Multiple lattice sites occupied AlTaO4:Cr3+phosphor for luminescence ratiometric thermometry and NIR light source".Journal of Alloys and Compounds 970(2024):7.

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