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Sc2(WO4)3：Er3+/Yb3+的上转换发光及其温度传感特性
Upconversion Luminescence and Temperature Sensing Properties for Sc2(WO4)3:Er3+/Yb3+
- 发光学报 2021年42卷第1期 页码：91-97
- 作者机构：
1.重庆理工大学 理学院, 重庆 400054
2.美国佐治亚南方大学 物理系, 佐治亚 斯泰茨伯勒 30460
- 作者简介：
[ "金叶(1982-), 女, 山东聊城人, 博士, 副教授, 2010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, 主要从事发光材料方面的研究。E-mail:jinye@cqut.edu.cn" ]
- 基金信息：国家自然科学基金(11704054);国家留基委项目(201908500037);重庆市科委项目(cstc2017jcyjA0925);重庆市科委项目(cstc2017jcyjAX0046);重庆市教委项目(KJQN201901134);重庆市教委项目(KJ1704071)
DOI：10.37188/CJL.20200326
中图分类号： O482.31收稿日期：2020-10-29，
录用日期：2020-11-26，
纸质出版日期：2021-01
- 稿件说明：
移动端阅览
金叶, 李坤, 罗旭, 等. Sc2(WO4)3：Er3+/Yb3+的上转换发光及其温度传感特性[J]. 发光学报, 2021,42(1):91-97.
Ye JIN, Kun LI, Xu LUO, et al. Upconversion Luminescence and Temperature Sensing Properties for Sc2(WO4)3:Er3+/Yb3+[J]. Chinese journal of luminescence, 2021, 42(1): 91-97.
金叶, 李坤, 罗旭, 等. Sc2(WO4)3：Er3+/Yb3+的上转换发光及其温度传感特性[J]. 发光学报, 2021,42(1):91-97. DOI： 10.37188/CJL.20200326.
Ye JIN, Kun LI, Xu LUO, et al. Upconversion Luminescence and Temperature Sensing Properties for Sc2(WO4)3:Er3+/Yb3+[J]. Chinese journal of luminescence, 2021, 42(1): 91-97. DOI： 10.37188/CJL.20200326.
摘要
通过高温固相法制备出一系列新型上转换材料Sc
2
（WO
4
）
3
：Er
3+
/Yb
3+
。在980 nm激光激发下，Sc
2
（WO
4
）
3
：Er
3+
/Yb
3+
样品发出肉眼可见的强绿光。利用荧光光度计测得样品的发光光谱，在500~600 nm之间有强绿光发射，分别归因于Er
3+
的
2
H
11/2
→
4
I
15/2
和
4
S
3/2
→
4
I
15/2
跃迁发射。在650~700 nm位置处，有对应于Er
3+
离子
4
F
9/2
→
4
I
15/2
跃迁的较弱的红光发射。随着掺杂浓度的变化，样品的红绿分支比发生变化。当样品掺杂Er
3+
浓度为0.05%、Yb
3+
浓度等于0.1%时，样品发射的绿光强度是红光强度的27倍。另外，利用荧光强度比方法研究了Er
3+
的两个热耦合能级在303~573 K范围内的发光温度特性。393 K时，样品的灵敏度达到最大为0.006 8 K
-1
。对比于其他荧光粉材料，Sc
2
（WO
4
）
3
：Er
3+
/Yb
3+
的灵敏度处于较高水平，在实际测温中具有更好的应用前景。
Abstract
A series of upconversion materials Er
3+
/Yb
3+
co-doped Sc
2
(WO
4
)
3
have been prepared by a high-temperature solid-phase method. Under the 980 nm near-infrared laser
the green emission intensity of the up-conversion luminescence is greater than that of the red
and the green light is visible to the naked eyes. When 0.05% Er
3+
and 0.1%Yb
3+
are doped
the green emission is 27 times more than the red emission. Furthermore
the fluorescence intensity ratio method was used to describe the optical temperature sensor with two thermal coupling energy levels of Er
3+
in the range of 303~573 K. At 393 K
the sensitivity of the sample reached the maximum 0.006 8 K
-1
. Compared with some reported materials
the sensitivity of Sc
2
(WO)
3
:Er
3+
/Yb
3+
is higher and it has a better prospect in temperature measurement.
关键词
Keywords
references
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