Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7
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Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7
Chinese Journal of LuminescenceVol. 39, Issue 7, Pages: 948-954(2018)
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:
Supported by National Natural Science Foundation of China(11464045,11264040);Xinjiang Mineral Luminescence and Application Key Laboratory Bidding Project(KWFG1706)
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
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.
Luminescent Properties of Dy3+, Tm3+ Co-doped Ca2MgSi2O7
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
Keywords
references
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