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纳米NaYb1-
x F4:Erx 3+中Er3+/Yb3+掺杂浓度变化引起的相变和发光增强Phase Transition and Luminescence Enhancement Induced by Er3+/Yb3+ Doping Ratio Change in Nano NaYb1-
x F4:Erx 3+- 发光学报 2021年42卷第2期 页码：187-194
- 作者机构：
1.吉林大学 白求恩第一医院, 吉林 长春 130021
2.中国科学院长春光学精密机械与物理研究所 发光学及应用国家重点实验室, 吉林 长春 130033
3.阿姆斯特丹大学 范德霍夫分子科学研究所, 荷兰 阿姆斯特丹 1098 XH
- 作者简介：
[ "李晓丹(1981－), 女, 吉林榆树人, 博士, 主治医师, 2017年于吉林大学获得博士学位, 主要从事基于纳米光子学的医学诊治方法学的研究。E-mail:ddjy@jlu.edu.cn" ]
[ "张俐(1981－), 女, 吉林蛟河人, 博士, 主治医师, 2019年于吉林大学获得博士学位, 主要从事基于纳米光子学的医学诊治方法学的研究。E-mail:zhangli66@jlu.edu.cn" ]
[ "赵慧颖(1961-), 女, 吉林长春人, 博士, 教授, 2000年于日本九州大学获得博士学位, 主要从事高血压、动脉粥样硬化的临床及基础研究。E-mail:hui_ying@jlu.edu.cn" ]
[ "李齐清(1990-), 男, 福建福州人, 博士, 2018年于中国科学院大学获得博士学位, 主要从事稀土掺杂上转换纳米发光材料的研究。E-mail:liqiqing0742@sina.cn" ]
- 基金信息：国家自然科学基金(51772122);国家自然科学基金(62075217);国家自然科学基金(11674316)
DOI：10.37188/CJL.20200381
中图分类号： O482.31纸质出版日期：2021-2，
收稿日期：2020-12-12，
录用日期：2021-1-5
扫 描 看 全 文
李晓丹, 张俐, 赵慧颖, 等. 纳米NaYb1-
x F4:Erx 3+中Er3+/Yb3+掺杂浓度变化引起的相变和发光增强[J]. 发光学报, 2021,42(2):187-194.Xiao-dan LI, Li ZHANG, Hui-ying ZHAO, et al. Phase Transition and Luminescence Enhancement Induced by Er3+/Yb3+ Doping Ratio Change in Nano NaYb1-
x F4:Erx 3+[J]. Chinese Journal of Luminescence, 2021,42(2):187-194.李晓丹, 张俐, 赵慧颖, 等. 纳米NaYb1-
x F4:Erx 3+中Er3+/Yb3+掺杂浓度变化引起的相变和发光增强[J]. 发光学报, 2021,42(2):187-194. DOI： 10.37188/CJL.20200381.Xiao-dan LI, Li ZHANG, Hui-ying ZHAO, et al. Phase Transition and Luminescence Enhancement Induced by Er3+/Yb3+ Doping Ratio Change in Nano NaYb1-
x F4:Erx 3+[J]. Chinese Journal of Luminescence, 2021,42(2):187-194. DOI： 10.37188/CJL.20200381.
摘要
在Yb
3+
和Er
3+
共掺杂氟化物纳米体系中，2% Er
3+
掺杂浓度为上转换发光的最佳浓度，高于这个浓度，随着Er
3+
掺杂浓度的增加，将发生严重上转换发光浓度猝灭，已为人们广泛认知和接受。本文合成了不同Er
3+
/Yb
3+
掺杂浓度比的NaYb
1-
x
F
4
：Er
x
3+
系列上转换发光纳米粒子。通过扫描电镜、XRD和荧光光谱等分析方法对这些合成的样品进行了表征。研究结果表明，当Er
3+
/Yb
3+
掺杂浓度比在0.02/0.98~0.2/0.8和0.6/0.4~0.8/0.2范围时，合成的NaYb
1-
x
F
4
：Er
x
3+
纳米粒子分别为α相和β相结构；而特别值得注意的是，当掺杂浓度比在0.3/0.7~0.4/0.6范围时，合成的纳米粒子为从α相向β相过渡的α相和β相共存相结构。Er
3+
/Yb
3+
最佳掺杂浓度比分别为0.02/0.98和0.4/0.6的两种α相和β相共存相结构的纳米粒子都展现了非常好的上转换发光增强。这些结果对于理解稀土离子浓度发光猝灭机制，提高上转换发光效率，促进稀土纳米发光材料在新型光源、生物医学和激光等领域的应用都具有重要的科学研究意义和启发作用。
Abstract
It was well known that 2% Er
3+
of the doping concentration is optimal in the fluorides nanostructures co-doped with Yb
3+
and Er
3+
for boosting upconversion luminescence. Herein
a series of NaYb
1-
x
F
4
:Er
x
3+
upconversion nanoparticles were synthesized with different Er
3+
/Yb
3+
doping ratio
which were analyzed and characterized by SEM
XRD and spectroscopy. It was shown that the two doping ratio of Er
3+
/Yb
3+
i. e
. 0.02/0.98 and 0.4/0.6
are the most favorable for upconversion luminescence of the as-synthesized nanoparticles. The XRD reveals that the as-synthesized series of nanoparticles show three phase structures
one α phase for 0.02/0.98~0.2/0.8 of the Er
3+
/Yb
3+
doping ratios
i.e
. the other β phase for 0.6/0.4~0.8/0.2
and the third coexisting phase consisting of α phase and β phase for 0.3/0.7~0.4/0.6
respectively. These results can be useful in promoting the development of biomedical
solar and laser applications.
关键词
氟化物纳米粒子Yb3+和Er3+共掺杂最佳浓度相变上转换发光
Keywords
fluoride nanoparticlesco-doping with Yb3+ and Er3+optimal concentration ratiophase transitionupconversion luminescence
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