Li+, Zn2+, Mg2+掺杂Lu2O3:Er3+荧光粉的制备及发光特性

王林香; 庹娟; 叶颖; 赵海琴

doi:10.3788/CO.20191201.0112

Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃:Er³⁺荧光粉的制备及发光特性

doi: 10.3788/CO.20191201.0112

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

1.
新疆师范大学新型光源与微纳光学重点实验室, 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, 乌鲁木齐 830054
3.
新疆师范大学物理学重点学科, 乌鲁木齐 830054

基金项目:

新疆维吾尔自治区自然科学基金 2017D01A60

新疆师范大学新型光源与微纳光学重点实验室项目 XJNUSYS092018B06

详细信息

作者简介:
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, 主要从事纳米发光材料方面的研究。E-mail:wanglinxiang23@126.com

中图分类号: O614.3;TQ17
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出版历程
- 收稿日期: 2018-03-20
- 修回日期: 2018-04-19
- 刊出日期: 2019-02-01

Preparation and luminescence properties of Li⁺, Zn²⁺, Mg²⁺ doped Lu₂O₃: Er³⁺ phosphors

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

1.
Key Laboratory of Novel Light Source and Micro/Nano-Optics, Xinjiang Normal University, Urumqi 830054, China
2.
Key Laboratory of Novel Luminescent Materials and Nanostructures, Xinjiang Normal University, Urumqi 830054, China
3.
Key Discipline Physics, Xinjiang Normal University, Urumqi 830054, China

Funds:

Natrural Science Foundation of Xinjiang, China 2017D01A60

Foundation of Xinjiang Normal University Laboratory of Novel Light Source and Micro/Nano-Optics, China XJNUSYS092018B06

More Information

Corresponding author: WANG Lin-xiang. E-mail:wanglinxiang23@126.com

摘要

摘要: 用微波高温固相法合成了Er³⁺单掺Lu₂O₃，Li⁺与Er³⁺共掺Lu₂O₃及Li⁺，Zn²⁺，Mg²⁺掺杂Lu₂O₃：Er³⁺的荧光粉。实验表明金属离子Li⁺、Zn²⁺、Mg²⁺、Er³⁺掺杂Lu₂O₃，不影响Lu₂O₃的立方晶相。扫描电子显微镜测量表明，Li⁺掺杂可以有效改善粉体的分散性和形貌，Li⁺，Zn²⁺，Mg²⁺共掺杂获得的粉体颗粒分布更加均匀，粒径范围为80~100 nm。379 nm激发下，Li⁺与Er³⁺共掺样品发光较单掺Er³⁺样品在565 nm处的发光增强了4.5倍，而Li⁺、Zn²⁺、Mg²⁺与Er³⁺共掺样品较其发光增强5.3倍。980 nm激发下，Li⁺与Er³⁺共掺样品，Li⁺、Zn²⁺、Mg²⁺与Er³⁺共掺样品的发光分别比单掺Er³⁺样品在565 nm处发光增强23倍与39倍，在662 nm处发光强度分别增强20倍与43倍。379 nm激发下，较单掺Er³⁺的样品，掺杂Li⁺的样品和Li⁺，Zn²⁺，Mg²⁺和Er³⁺共掺的样品荧光寿命均有所增加，而Zn²⁺、Er³⁺共掺及Mg²⁺、Er³⁺共掺样品的荧光寿命则有所缩短。
- 微波高温固相法 /
- Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃:Er³⁺荧光粉 /
- 发光强度 /
- 上转换发光 /
- 荧光寿命
Abstract: Li⁺, Zn²⁺, Mg²⁺, Er³⁺ doped Lu₂O₃ phosphors were synthesized using the microwave heating high temperature solid state method. The experimental results indicate that doping with Li⁺, Zn²⁺, Mg²⁺ and Er³⁺ will not affect the cubic phase of Lu₂O₃. SEM measurements show that Li⁺ doping can effectively improve the dispersibility and morphology of the sample powder, and the powder particle size distribution obtained by the co-doping of Li⁺, Zn²⁺ and Mg²⁺ are more uniform with a particle size of 80-100 nm. The excitation spectra, emission spectra and the fluorescence lifetime of the samples were detected and analyzed using a fluorescence spectrophotometer. The results showed that under 379 nm excitation, the luminescence intensities of samples doped with 5% Li⁺ and 2% Er³⁺, and that of samples doped with 5% Li⁺, 2.5% Zn²⁺, 2.5% Mg²⁺ and 2% Er³⁺ increased by 4.5 and 5.3 times than that of the sample only doped with Er³⁺ ions at 565 nm. Under 980 nm excitation, the up-conversion luminescence intensities of samples doped with 5% Li⁺ and 2% Er³⁺, and that of samples doped with 5% Li⁺, 2.5% Zn²⁺, 2.5% Mg²⁺ and 2% Er³⁺ increased by 23 and 39 times than that of samples doped only with Er³⁺ ions at 565 nm. This increased by 20 and 43 times at 662 nm. Under 379 nm excitation, the lifetime of the samples doped with Li⁺ was longer than that without Li⁺. The lifetime of the samples co-doped with Li⁺, Zn²⁺, Mg²⁺ and Er³⁺ increased, while the lifetime of the samples co-doping of Zn²⁺, Er³⁺ and Mg²⁺, Er³⁺ decreased.

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图 1 Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃:Er³⁺样品的XRD图

Figure 1. X-ray diffraction patterns of Lu₂O₃:Er³⁺ doped with Li⁺, Zn²⁺ and Mg²⁺ at different concentrations

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图 2 样品的SEM照片

Figure 2. Nanocrystalline SEM photos of No.2, No.6, No.11 samples

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图 3 Lu₂O₃:Er³⁺的激发光谱(a)及发射光谱(b)

Figure 3. Excitation(a) and emission spectra(b) of Lu₂O₃:Er³⁺ sample

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图 4 不同浓度Li⁺和Er³⁺共掺Lu₂O₃的激发光谱(a)和发射光谱(b)

Figure 4. Excitation(a) and emission spectra(b) of Lu₂O₃ samples co-doped with Li⁺ and Er³⁺

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图 5 Li⁺, Zn²⁺, Mg²⁺和Er³⁺共掺Lu₂O₃的激发光谱(a)和发射光谱(b)

Figure 5. Excitation(a) and emission spectra(b) of Li⁺, Zn²⁺, Mg²⁺co-doped Lu₂O₃:Er³⁺ samples

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图 6 980 nm激发下Li⁺, Zn²⁺, Mg²⁺, Er³⁺共掺Lu₂O₃的荧光粉的发射谱

Figure 6. Up-conversion emission spectra of Li⁺, Zn²⁺, Mg²⁺doped Lu₂O₃:Er³⁺ samples

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图 7 379 nm激发下Li⁺、Zn²⁺、Mg²⁺和Er³⁺共掺Lu₂O₃的荧光衰减曲线

Figure 7. Fluorescence decay curves of Li⁺, Zn²⁺, Mg²⁺ doped Lu₂O₃:Er³⁺ samples(λ_ex=379 nm)

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表 1 不同浓度(摩尔质量百分比)Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃:Er³⁺样品

Table 1. Lu₂O₃:Er³⁺ doped with Li⁺, Zn²⁺ and Mg²⁺ at different concentrations

Sample	Er³⁺/%	Li³⁺/%	Zn²⁺/%	Mg²⁺/%	Lu₂O₃/%
1	1	0	0	0	99
2	2	0	0	0	98
3	5	0	0	0	95
4	2	1	0	0	97
5	2	3	0	0	95
6	2	5	0	0	93
7	2	8	0	0	90
8	2	12	0	0	86
9	2	0	5	0	93
10	2	0	0	5	93
11	2	5	2.5	2.5	88

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表 2 Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃ :Er³⁺样品的寿命

Table 2. Lifetime of Li⁺, Zn²⁺, Mg²⁺ doped Lu₂O₃:Er³⁺ samples

λ_ex/nm	Energy level	Sample	2	4	5	6	7
		lifetime/μs	51.366 9	55.281 9	61.408 5	63.623 1	61.908 8
379	⁴S_3/2 →⁴I_15/2	Sample	8	9	10	11
		lifetime/μs	61.289 5	44.300 7	42.958 8	61.672 5

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Li⁺, Zn²⁺, Mg²⁺掺杂Lu₂O₃:Er³⁺荧光粉的制备及发光特性

doi: 10.3788/CO.20191201.0112

作者简介:
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, 主要从事纳米发光材料方面的研究。E-mail:wanglinxiang23@126.com

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Preparation and luminescence properties of Li⁺, Zn²⁺, Mg²⁺ doped Lu₂O₃: Er³⁺ phosphors

Corresponding author: WANG Lin-xiang. E-mail:wanglinxiang23@126.com

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