NaY9(SiO4)6O2: Bi3+,Eu3+荧光材料的合成及温敏特性

doi:10.3969/j.issn.1000-1565.2022.06.005

摘要/Abstract

摘要： 为寻找高性能荧光温敏探针材料,用荧光强度比率法,对NaY_9-x-y(SiO₄)₆O₂:xBi³⁺,yEu³⁺荧光粉体的温敏特性进行了研究.结果表明:该材料中存在Bi³⁺→ Eu³⁺的高效能量传递,单一波段激发Bi³⁺发光离子,可获得Bi³⁺和Eu³⁺的双发射荧光光谱;温度升高时,Eu³⁺发射光谱的猝灭速率比Bi³⁺缓慢;根据不同温度下2种发光光谱强度的比值,获得了NaY_6.192(SiO₄)₆O₂:0.108Bi³⁺,2.7Eu³⁺在300~450 K最高相对灵敏度为1.51 %·K^-1,大大优于可实用温敏材料的相对灵敏度数值(0.3 %·K^-1),该材料具有较大的实际应用前景.

关键词: 荧光材料, 比率法, 温敏特性, 灵敏度

Abstract: To search probe phosphors with better performance temperature, using the ratio method of the fluorescence intensity, the thermosensitive performance of the NaY_9-x-y(SiO₄)₆O₂:xBi³⁺,yEu³⁺ phosphor has been studied. The results show the efficient energy transfer from Bi³⁺ to Eu³⁺ can be observed. With the excitation of Bi³⁺, the double emission spectra of Bi³⁺ and Eu³⁺ can be acquired. With the increase of the temperature, the fluorescence intensity quenching speed of Eu³⁺ is slower than that of Bi³⁺. Based on the temperature dependent fluorescence intensity ratio of Bi³⁺ to Eu³⁺, the relative sensitivity(S_r)values of the NaY_6.192(SiO₄)₆O₂:0.108Bi³⁺,2.7Eu³⁺ probe phosphor at the temperature range of 300 to 450 K have been calculated. The maximum(S_r)is 1.51 %·K^-1, which is much better than the suggested value of 0.3 %·K^-1 for the practical applications. The temperature probe phosphor in this work showed the potential in the temperature sensitivity fields.

Key words: phosphor, ratio method, thermosensitive performance, sensitivity

中图分类号:

付念,杨子晗,马连华,王纯豪,涂盈盈,鲁法春. NaY₉(SiO₄)₆O₂: Bi³⁺,Eu³⁺荧光材料的合成及温敏特性[J]. 河北大学学报(自然科学版), 2022, 42(6): 589-598.

FU Nian, YANG Zihan, MA Lianhua, WANG Chunhao, TU Yingying, LU Fachun. Synthesis and thermometric performance of NaY₉(SiO₄)₆O₂:〓 Bi³⁺,Eu³⁺phosphor[J]. Journal of Hebei University(Natural Science Edition), 2022, 42(6): 589-598.

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NaY₉(SiO₄)₆O₂: Bi³⁺,Eu³⁺荧光材料的合成及温敏特性

Synthesis and thermometric performance of NaY₉(SiO₄)₆O₂:〓 Bi³⁺,Eu³⁺phosphor

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