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碱金属共掺MgSc2O4:Er3+/Yb3+纳米晶的上转换发光性能
Upconversion Luminescence of MgSc2O4: Er3+/Yb3+ Nanocrystals Co-doped Alkali Ions
- 发光学报 2020年41卷第11期 页码：1351-1357
- 作者机构：
1.长春工业大学 化学与生命学院&材料科学高等研究院, 吉林 长春 130012
2.长春工业大学 材料科学与工程学院, 吉林 长春 130012
- 作者简介：
[ "袁美娟(1992-), 女, 山西朔州人, 学士, 2018年于唐山师范学院获得学士学位, 主要从事稀土掺杂发光纳米材料及应用的研究。E-mail:1035488706@qq.com" ]
[ "李静(1986-), 女, 河北衡水人, 博士, 副教授, 2014年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事稀土掺杂发光材料物理及应用的研究。E-mail:lij@ccut.edu.com" ]
[ "陈力(1974-), 男, 黑龙江五常人, 博士, 教授, 2007年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事低维掺杂材料光物理及纳米光子学的研究。E-mail:chenli@ccut.edu.cn" ]
- 基金信息：吉林省教育厅“十三五”科学技术项目(JJKH20200646KJ);国家自然科学基金(11504029);国家自然科学基金(11474035);吉林省自然科学基金(20200201247JC);吉林省自然科学基金(20170520110JH)
DOI：10.37188/CJL.20200294
中图分类号： O482.31收稿：2020-10-08，
录用：2020-10-19，
纸质出版：2020-11
- 稿件说明：
移动端阅览
袁美娟, 李静, 秦慧连, 等. 碱金属共掺MgSc2O4:Er3+/Yb3+纳米晶的上转换发光性能[J]. 发光学报, 2020,41(11):1351-1357.
Mei-juan YUANG, Jing LI, Hui-lian QIN, et al. Upconversion Luminescence of MgSc2O4: Er3+/Yb3+ Nanocrystals Co-doped Alkali Ions[J]. Chinese Journal of Luminescence, 2020, 41(11): 1351-1357.
袁美娟, 李静, 秦慧连, 等. 碱金属共掺MgSc2O4:Er3+/Yb3+纳米晶的上转换发光性能[J]. 发光学报, 2020,41(11):1351-1357. DOI： 10.37188/CJL.20200294.
Mei-juan YUANG, Jing LI, Hui-lian QIN, et al. Upconversion Luminescence of MgSc2O4: Er3+/Yb3+ Nanocrystals Co-doped Alkali Ions[J]. Chinese Journal of Luminescence, 2020, 41(11): 1351-1357. DOI： 10.37188/CJL.20200294.
摘要
通过水热法制备了碱金属离子(Li
+
、Na
+
、K
+
)共掺的MgSc
2
O
4
:Er
3+
/Yb
3+
纳米晶，获得类球状纳米晶的平均尺寸约为35 nm。通过改变碱金属离子的种类和数量，获得了增强上转换发光。发现K
+
离子共掺MgSc
2
O
4
:Er
3+
/Yb
3+
纳米晶发光强度最佳，并且随着K
+
掺杂量的不断增加，纳米晶的发射强度逐渐增强，这是由于K
+
离子引入了最大的晶体场不对称性。随后，通过调控Yb
3+
和Er
3+
的掺杂浓度，发现发光强度最强样品为K
+
离子共掺MgSc
2
O
4
:1% Er
3+
/5% Yb
3+
纳米晶。研究了在980 nm激光激发下，MgSc
2
O
4
纳米晶中Yb
3+
与Er
3+
离子之间的能量传递以及上转换发光机制。
Abstract
The alkali ions(Li
+
/Na
+
/K
+
) co-doped MgSc
2
O
4
:Er
3+
/Yb
3+
nanocrystals have been synthesized by hydrothermal method. The average size of obtained spheroid nanocrystals is about 35 nm. The upconversion luminescence intensity can be strengthened by adjusting alkali ions types and contents. The K
+
ions co-doped MgSc
2
O
4
:Er
3+
/Yb
3+
nanocrystals display the strongest luminescence. As K
+
content increasing
emission intensity can be enhanced gradually due to the large asymmetry of crystal field created by K
+
ions. The spectral properties of K
+
ions co-doped MgSc
2
O
4
:Er
3+
/Yb
3+
nanocrystals are described in detail as a function of Er
3+
and Yb
3+
concentrations. The MgSc
2
O
4
:1%Er
3+
/5%Yb
3+
nanocrystal was optimized for the strongest upconversion luminescence. Then
the upconversion mechanism and energy transfer processes between Yb
3+
ions and Er
3+
ions in K
+
ions co-doped MgSc
2
O
4
:Er
3+
/Yb
3+
nanocrystals were investigated under the 980 nm excitation.
关键词
Keywords
references
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