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Dy3+、Tm3+共掺杂Ca2MgSi2O7的发光特性
Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7
- 发光学报 2018年39卷第7期 页码：948-954
- 作者机构：
新疆师范大学 物理与电子工程学院, 新疆矿物发光材料及其微结构实验室,新疆 乌鲁木齐,830054
- 作者简介：
- 基金信息：国家自然科学基金（11464045，11264040）;新疆矿物发光及应用重点实验室招标课题（KWFG1706）资助项目
DOI：10.3788/fgxb20183907.0948
中图分类号： O482.31纸质出版日期：2018-7-5，
网络出版日期：2018-3-23，
收稿日期：2017-12-11，
修回日期：2018-3-12，
扫 描 看 全 文
胡莲莲, 艾尔肯·斯地克等. Dy3+、Tm3+共掺杂Ca2MgSi2O7的发光特性[J]. 发光学报, 2018,39(7): 948-954
HU Lian-lian, AIERKEN Sidike, WAN Ying etc. Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7[J]. Chinese Journal of Luminescence, 2018,39(7): 948-954
胡莲莲, 艾尔肯·斯地克等. Dy3+、Tm3+共掺杂Ca2MgSi2O7的发光特性[J]. 发光学报, 2018,39(7): 948-954 DOI： 10.3788/fgxb20183907.0948.
HU Lian-lian, AIERKEN Sidike, WAN Ying etc. Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7[J]. Chinese Journal of Luminescence, 2018,39(7): 948-954 DOI： 10.3788/fgxb20183907.0948.
摘要
采用高温固相法合成了系列Ca
2
MgSi
2
O
7
：Dy
3+
，Tm
3+
发光材料。对样品进行了XRD结构表征，测量了激发光谱、发射光谱、色温和荧光寿命。研究结果表明，Ca
2
MgSi
2
O
7
：Tm
3+
在355 nm激发下显示出蓝色发光，在CIE1931中的色坐标为
x
=0.165 9，
y
=0.082 2，色纯度为89%。通过Dy
3+
和Tm
3+
的叠加激发谱带激发，即在349，353，365 nm激发下，Ca
2
MgSi
2
O
7
：Dy
3+
，Tm
3+
显示出青白、冷白和暖白光，相关色温值分别为5 193，9 672，4 685 K。300~500 nm区域间可以有效地激发Ca
2
MgSi
2
O
7
：Dy
3+
，Tm
3+
，并在400~600 nm之间产生蓝光和黄光复合产生的白光，表明该体系可用作白光LED的发光材料。
Abstract
A series of Ca
2
MgSi
2
O
7
:Dy
3+
Tm
3+
luminescent materials were synthesized by high temperature solid phase method. The samples were characterized by XRD structure
and the excitation spectra
emission spectra
color temperature and fluorescence lifetime were measured. The results show that Ca
2
MgSi
2
O
7
:Tm
3+
exhibits blue luminescence under the excitation of 355 nm. The color coordinate in CIE1931 is
x
=0.165 9
y
=0.082 2
and the color purity is 89%。Excited by the superposition excitation bands of Dy
3+
and Tm
3+
(349
353
365 nm)
Ca
2
MgSi
2
O
7
:Dy
3+
Tm
3+
phosphors show bright white
cool white and warm white light
and the correlation color values are 5 193
9 672
4 685 K
respectively. In conclusion
Ca
2
MgSi
2
O
7
:Dy
3+
and Tm
3+
can be effectively excited by 300-500 nm regions and emit white light produced by blue and yellow light combinations between 400-600 nm
shows that the system can be used as a luminescent material for white LED.
关键词
Ca2MgSi2O7:Dy3+Tm3+荧光粉光致发光白光LED叠加激发谱带
Keywords
Ca2MgSi2O7:Dy3+Tm3+ phosphorphotoluminescencewhite light LEDsuperposition excitation band
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