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Y3+掺杂对Sr1-xCaxSi2O2N2∶Eu2+发光性能的影响
Effect of Y3+ Ions Doping on The Luminescence Properties of Sr1-xCaxSi2O2N2:Eu2+ Phosphors
- 发光学报 2017年38卷第11期 页码：1450-1456
- 作者机构：
1. 贵州大学 大数据与信息工程学院, 贵州省电子功能复合材料特色重点实验室, 贵州 贵阳 550025
2. 贵州民族大学 数据科学与信息工程学院, 贵州 贵阳 550025
- 作者简介：
- 基金信息：国家然科学基金（51462003，61361012）();贵州省自然科学基金（黔科合J字LKM[2011]15号）资助项目()
DOI：10.3788/fgxb20173811.1450
中图分类号： O482.31纸质出版日期：2017-11-5，
网络出版日期：2017-7-4，
收稿日期：2017-3-14，
修回日期：2017-4-11，
扫 描 看 全 文
李绪诚, 邓朝勇, 龙飞等. Y<sup>3+</sup>掺杂对Sr<sub>1-<em>x</em></sub>Ca<sub><em>x</em></sub>Si<sub>2</sub>O<sub>2</sub>N<sub>2</sub>∶Eu<sup>2+</sup>发光性能的影响[J]. 发光学报, 2017,38(11): 1450-1456
LI Xu-cheng, DENG Chao-yong, LONF Fei etc. Effect of Y<sup>3+</sup> Ions Doping on The Luminescence Properties of Sr<sub>1-<em>x</em></sub>Ca<em>x</em>Si<sub>2</sub>O<sub>2</sub>N<sub>2</sub>:Eu<sup>2+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2017,38(11): 1450-1456
李绪诚, 邓朝勇, 龙飞等. Y<sup>3+</sup>掺杂对Sr<sub>1-<em>x</em></sub>Ca<sub><em>x</em></sub>Si<sub>2</sub>O<sub>2</sub>N<sub>2</sub>∶Eu<sup>2+</sup>发光性能的影响[J]. 发光学报, 2017,38(11): 1450-1456 DOI： 10.3788/fgxb20173811.1450.
LI Xu-cheng, DENG Chao-yong, LONF Fei etc. Effect of Y<sup>3+</sup> Ions Doping on The Luminescence Properties of Sr<sub>1-<em>x</em></sub>Ca<em>x</em>Si<sub>2</sub>O<sub>2</sub>N<sub>2</sub>:Eu<sup>2+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2017,38(11): 1450-1456 DOI： 10.3788/fgxb20173811.1450.
摘要
采用高温固相反应法制备了Sr
1-
x
Ca
x
Si
2
O
2
N
2
∶Eu
2+
系列荧光粉，研究Y
3+
离子掺入对荧光粉发光性能的影响。对于SrSi
2
O
2
N
2
∶Eu
2+
，Y
3+
离子掺入主要起到稳定Eu
2+
价态的作用，避免Eu
2+
氧化为Eu
3+
，从而提高SrSi
2
O
2
N
2
∶Eu
2+
的发光性能。对于CaSi
2
O
2
N
2
∶Eu
2+
，Y
3+
离子掺入除了稳定Eu
2+
价态作用外，还能有效减小Eu
2+
取代Ca
2+
后晶格膨胀引起的应力，提高Eu
2+
在晶格中的溶解度。Sr
1-
x
Ca
x
Si
2
O
2
N
2
∶Eu
2+
（
x
=0，0.15，0.3，0.6，0.75，0.95）系列荧光粉中随着Ca含量的增加，共掺Y
3+
离子对样品发光强度的提高程度也随之增加（20%~80%）。
Abstract
Sr
1-
x
Ca
x
Si
2
O
2
N
2
:Eu
2+
/Y
3+
(
x
=0
0.15
0.3
0.6
0.75
0.95) phosphors were prepared by a high temperature solid-state reaction method. The effect of Y
3+
doping on the luminescence properties of the samples was studied. The results revealed that Y
3+
ion doping may significantly improve the photoluminescence properties of
M
Si
2
O
2
N
2
:Eu
2+
(
M
=Ca
Sr) because the point defect result from the substitution of Y
3+
ions for M
2+
could inhibit the oxidization of Eu
2+
to Eu
3+
. Besides
The Y
3+
ion has smaller radius which could relax the expansion caused by the larger Eu
2+
in CaSi
2
O
2
N
2
:Eu
2+
. The structure of Sr
1-
x
Ca
x
Si
2
O
2
N
2
:Eu
2+
/Y
3+
can solve more Eu
2+
ions at an equal distortion degree. With the increasing of
x
values in Sr
1-
x
Ca
x
Si
2
O
2
N
2
:Eu
2+
/Y
3+
the luminescence intension ratio of Sr
1-
x
Ca
x
Si
2
O
2
N
2
:Eu
2+
/Y
3+
(B1-B6) to Sr
1-
x
Ca
x
Si
2
O
2
N
2
:Eu
2+
(A1-A6) raises (120%~180%).
关键词
Sr1-xCaxSi2O2N2:Eu2+发光性能稀土Y3+掺杂
Keywords
Sr1-xCaxSi2O2N2:Eu2+luminescencerare earthsY3+ doping
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