金属离子Bi3+掺杂Lu1-xO3: x%Ho3+荧光粉的发光性能 -

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金属离子Bi³⁺掺杂Lu_1-xO₃:x%Ho³⁺荧光粉的发光性能

doi:10.37188/CO.2019-0222

赵海琴^{1, 2, 3,},
王林香^{1, 2, 3,,},
庹娟^{1, 2, 3},
叶颖^{1, 2, 3}

1.
新疆师范大学物理与电子工程学院，新疆乌鲁木齐 830054
2.
新疆师范大学矿物发光及其微结构重点实验室，新疆乌鲁木齐 830054
3.
新疆师范大学新型光源与微纳米光学实验室，新疆乌鲁木齐 830054

基金项目:新疆维吾尔自治区自然科学基金(No. 2017D01A60)；新疆维吾尔自治区高校科研计划 (No. XJEDU2018Y032)

详细信息

作者简介:
赵海琴（1995—），女，甘肃金昌人，硕士，2020 年于新疆师范大学获得硕士学位，主要从事纳米发光材料的制备及其性能研究。E-mail：zhq0928@mail.ustc.edu.cn
王林香（1979—），女，甘肃秦安人，博士，副教授，2010 年于中国科学技术大学获得博士学位，主要研究纳米发光材料。E-mail：wanglinxiang23@126.com

中图分类号:O482.31
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出版历程
- 收稿日期:2019-11-26
- 修回日期:2020-01-21
- 网络出版日期:2021-04-17
- 刊出日期:2021-05-14

Luminescence properties of Bi³⁺doped Lu_1-xO₃:x%Ho³⁺metal ion phosphors

ZHAO Hai-qin^{1, 2, 3,},
WANG Lin-xiang^{1, 2, 3,,},
TUO Juan^{1, 2, 3},
YE Ying^{1, 2, 3}

1.
College of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China
2.
Key Laboratory of Mineral Luminescence and Microstructures, Xinjiang Normal University, Urumqi 830054, China
3.
Laboratory of Novel Light Sources and Micro/Nano-Optics, Xinjiang Normal University, Urumqi 830054, China

Funds:Supported by Natural Science Foundation of Xinjiang (No. 2017D01A60); Scientific Research Plan of Colleges and University in Xinjiang (No. XJEDU2018Y032)

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Corresponding author:wanglinxiang23@126. com

摘要

摘要:采用高温固相法制备了金属离子Bi ³⁺掺杂Lu _1-xO ₃: x%Ho ³⁺系列荧光粉，研究了不同浓度Bi ³⁺掺杂Lu _1-xO ₃: x%Ho ³⁺荧光粉的晶体结构、Lu ₂O ₃基质中Bi ³⁺→Ho ³⁺的能量传递规律及合成粉体的发光性质。X射线衍射结果表明Bi ³⁺、Ho ³⁺掺杂对Lu ₂O ₃的立方相结构没有影响。在322 nm激发波长下发射出位于551 nm处Ho ³⁺的 ⁵S ₂→ ⁵I ₈跃迁；在551 nm监测下，合成的Ho ³⁺、Bi ³⁺共掺杂Lu ₂O ₃荧光粉出现Bi ³⁺的322 nm特征激发峰以及Ho ³⁺的448 nm处的 ⁵I ₈→ ⁵F ₁跃迁。当Bi ³⁺掺杂浓度为1.5%时，Bi ³⁺对Ho ³⁺的能量传递最有效，比单掺Ho ³⁺样品发射强度提高了34.8倍。Lu _98.5%−yO ₃:1.5%Ho ³⁺, y%Bi ³⁺( y=1，1.5，2)样品，随着Bi ³⁺掺杂浓度增加，用980 nm激发比322 nm激发在551 nm处获得的光强分别提高了 13.3倍、16.8倍、14.2倍。通过计算得到Bi ³⁺和Ho ³⁺之间的能量传递临界距离为2.979 nm，且Bi ³⁺与Ho ³⁺之间的能量传递是通过偶极-四极相互作用实现的。
- 荧光粉/
- 发光性能/
- 能量传递/
- 多极相互作用
Abstract:Bi ³⁺doped Lu _1-xO ₃: x%Ho ³⁺metal ion phosphors were prepared using the high-temperature solid-phase method. The crystal structures of Bi ³⁺doped Lu _1-xO ₃: x%Ho ³⁺phosphors, the Bi ³⁺→Ho ³⁺energy transfer rule in Lu ₂O ₃matrix and the luminescent properties of synthetic powders with different doping concentrations were investigated. X-ray diffraction results showed that Bi ³⁺and Ho ³⁺doping had no effect on the cubic phase structure of Lu ₂O ₃. Lu ₂O ₃: Ho ³⁺, Bi ³⁺phosphor emitted ⁵S ₂→ ⁵I ₈transition of Ho ³⁺at 551 nm under an excitation wavelength of 322 nm, and exhibited ¹S ₀→ ³P ₁characteristic transition of Bi ³⁺at 322 nm and ⁵I ₈→ ⁵F ₁transition of Ho ³⁺at 448 nm under an emission wavelength of 551 nm. When the doping concentration of Bi ³⁺was 1.5%, the effect was most effective for the energy transfer of Ho ³⁺, which increased by a factor of 34.8 compared to that of the single-doped Ho ³⁺sample. For Lu _98.5%−yO ₃:1.5%Ho ³⁺, y%Bi ³⁺( y=1, 1.5, 2), with the increase of Bi ³⁺ions concentration, the luminescence intensity at 551 nm under 980-nm excitation increased by a factor of 13.3, 16.8 and 14.2, respectively, compared to that of under 322-nm excitation. The energy transfer critical distance between Bi ³⁺and Ho ³⁺was calculated to be 2.979 nm, and the energy transfer between Bi ³⁺and Ho ³⁺was achieved by dipole-quadrupole interaction.
- phosphor/
- luminescence propertie/
- energy transfer/
- multipolar interaction

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图 1Ho³⁺、Bi³⁺掺杂Lu₂O₃粉末XRD

Figure 1.XRD patterns of Ho³⁺and Bi³⁺doped Lu₂O₃powders

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图 2Lu_98.5%O₃:1.5%Bi³⁺和 Lu_98.5%O₃:1.5%Ho³⁺样品的激发和发射光谱

Figure 2.Excitation and emission spectra of Lu_98.5%O₃:1.5%Bi³⁺and Lu_98.5%O₃:1.5%Ho³⁺phosphor samples

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图 3Lu_98.5%-yO₃:1.5%Ho³⁺，y%Bi³⁺样品的激发光谱（a）和发射光谱（b）

Figure 3.Excitation spectra (a) and emission spectrum (b) of Lu_98.5%-yO₃: 1.5% Ho³⁺,y%Bi³⁺samples

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图 4Bi³⁺与Ho³⁺的能级以及能量传递示意图

Figure 4.Schematic diagram of the energy levels and energy transfer of Bi³⁺and Ho³⁺

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图 5980 nm及322 nm激发下Lu_1−x−yO₃:x%Ho³⁺,y%Bi³⁺样品的发射光谱及强度变化

Figure 5.Luminescence spectra and intensity changes of Lu_1−x−yO₃:x%Ho³⁺,y%Bi³⁺samples at 980 nm and 322 nm excitation

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图 6Lu_98.5%-yO₃:1.5%Ho³⁺,y%Bi³⁺荧光粉中Ho³⁺的荧光衰减曲线

Figure 6.Decay curves for the luminescence of Ho³⁺in Lu_98.5%-yO₃:1.5%Ho³⁺,y%Bi³⁺phosphors

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图 7Lu_98.5%-yO₃:1.5%Ho³⁺，y%Bi³⁺荧光粉中Ho³⁺的 ${{{I}}_{{{{\rm{S}}}}_{0}}}/{I_{\rm{S}}}$ 与(C_Bi+C_Ho)^6/3，(C_Bi+C_Ho)^8/3和(C_Bi+C_Ho)^10/3关系曲线

Figure 7.Dependence ${{{I}}_{{{{\rm{S}}}}_{0}}}/{I_{\rm{S}}}$ of Ho³⁺on (C_Bi+C_Ho)^6/3, (C_Bi+C_Ho)^8/3and (C_Bi+C_Ho)^10/3in Lu_98.5%-yO₃:1.5%Ho³⁺,y%Bi³⁺phosphor

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表 1不同摩尔分数的Bi³⁺掺杂Lu₂O₃:Ho³⁺荧光粉

Table 1.Bi³⁺doped Lu₂O₃:Ho³⁺phosphors at different doping concentrations

sample	Lu₂O₃	Ho³⁺	Bi³⁺
1	98.5%	1.5%	0%
2	98.5%	0%	1.5%
3	97.5%	1.5%	1.0%
4	97.0%	1.5%	1.5%
5	96.5%	1.5%	2.0%

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