Enhanced upconversion luminescence and optical thermometry in Er3+/Yb3+heavily doped ZrO2by stabilizing in the monoclinic phase

doi:10.1039/d1qm00440a

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	Enhanced upconversion luminescence and optical thermometry in Er3+/Yb3+heavily doped ZrO2by stabilizing in the monoclinic phase
	K. Wang; H. Wu; G.-H. Pan; H. Wu; L. Zhang and J. Zhang
	2021
发表期刊	Materials Chemistry Frontiers
ISSN	20521537
卷号	5 期号:13 页码:5142-5149
摘要	Er3+ and Yb3+ heavily doped monoclinic ZrO2 (m-ZrO2) stabilized by Nb5+ is prepared by solid-state reactions. The upconversion luminescence (UCL) of concentration optimized m-ZrO2:2%Er3+,9%Yb3+ shows a yellow emission which is found to be 4 times stronger than the red UCL of the optimized cubic ZrO2:2%Er3+,14%Yb3+. It is revealed that monoclinic ZrO2 has faster radiative transition rates of Er3+ and Yb3+ than cubic ZrO2 because of the lower crystal symmetry in the monoclinic phase that enables higher 4f-5d mixing of rare earth ions. The enhanced radiative transition allows 9%Yb3+ in the monoclinic phase to have a similar absorption of 980 nm excitation light to that of 14%Yb3+ in the cubic phase, thus retaining the lower energy back transfer from Er3+ in the green emitting state to Yb3+ and lower concentration quenching of Yb3+ in the monoclinic phase. The green and red dual-color optical thermometry behavior of m-ZrO2 has been explored. A large detectable temperature range, at which the absolute sensitivity is high, is realized through adopting this complementary optical thermometer. Repeated thermal experiments prove the stability of the m-ZrO2 as a temperature probe. Our results indicate that heavily doped m-ZrO2 is an excellent host for efficient luminescence of rare earth ions. This journal is the Partner Organisations.
DOI	10.1039/d1qm00440a
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65222
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	K. Wang,H. Wu,G.-H. Pan,et al. Enhanced upconversion luminescence and optical thermometry in Er3+/Yb3+heavily doped ZrO2by stabilizing in the monoclinic phase[J]. Materials Chemistry Frontiers,2021,5(13):5142-5149.
APA	K. Wang,H. Wu,G.-H. Pan,H. Wu,&L. Zhang and J. Zhang.(2021).Enhanced upconversion luminescence and optical thermometry in Er3+/Yb3+heavily doped ZrO2by stabilizing in the monoclinic phase.Materials Chemistry Frontiers,5(13),5142-5149.
MLA	K. Wang,et al."Enhanced upconversion luminescence and optical thermometry in Er3+/Yb3+heavily doped ZrO2by stabilizing in the monoclinic phase".Materials Chemistry Frontiers 5.13(2021):5142-5149.

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