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阴离子取代合成Sr3LaAxV3-xO12:Eu3+(A=Mo,W)白光荧光粉
Synthesis of Sr3LaAxV3-xO12: Eu3+ (A=Mo, W) White Phosphor by Anion Substitution
- 发光学报 2018年39卷第10期 页码：1385-1394
- 作者机构：
广西师范学院 化学与材料科学学院,广西 南宁,530001
- 作者简介：
- 基金信息：国家自然科学基金（21161004）资助项目()
DOI：10.3788/fgxb20183910.1385
中图分类号： O614纸质出版日期：2018-10-5，
网络出版日期：2018-5-3，
收稿日期：2018-1-9，
修回日期：2018-4-10，
扫 描 看 全 文
杨国辉, 王小军, 陈彩花等. 阴离子取代合成Sr<sub>3</sub>La<em>A</em><sub><em>x</em></sub>V<sub>3-<em>x</em></sub>O<sub>12</sub>:Eu<sup>3+</sup>(<em>A</em>=Mo,W)白光荧光粉[J]. 发光学报, 2018,39(10): 1385-1394
YANG Guo-hui, WANG Xiao-jun, CHEN Cai-hua etc. Synthesis of Sr<sub>3</sub>La<em>A</em><sub><em>x</em></sub>V<sub>3-<em>x</em></sub>O<sub>12</sub>: Eu<sup>3+</sup> (<em>A</em>=Mo, W) White Phosphor by Anion Substitution[J]. Chinese Journal of Luminescence, 2018,39(10): 1385-1394
杨国辉, 王小军, 陈彩花等. 阴离子取代合成Sr<sub>3</sub>La<em>A</em><sub><em>x</em></sub>V<sub>3-<em>x</em></sub>O<sub>12</sub>:Eu<sup>3+</sup>(<em>A</em>=Mo,W)白光荧光粉[J]. 发光学报, 2018,39(10): 1385-1394 DOI： 10.3788/fgxb20183910.1385.
YANG Guo-hui, WANG Xiao-jun, CHEN Cai-hua etc. Synthesis of Sr<sub>3</sub>La<em>A</em><sub><em>x</em></sub>V<sub>3-<em>x</em></sub>O<sub>12</sub>: Eu<sup>3+</sup> (<em>A</em>=Mo, W) White Phosphor by Anion Substitution[J]. Chinese Journal of Luminescence, 2018,39(10): 1385-1394 DOI： 10.3788/fgxb20183910.1385.
摘要
通过高温固相法合成Sr
3
La
A
x
V
3-
x
O
12
:Eu
3+
（
A
=Mo，W）荧光粉，利用MoO
4
2-
和WO
4
2-
取代基质中部分VO
4
3-
，改变基质组成和结构，进而影响基质和激活剂Eu
3+
离子的发光性能。采用X射线衍射（XRD）、扫描电子显微镜（SEM）和荧光分光光度计对所合成样品的物相、形貌、荧光性能及荧光寿命进行表征。研究表明，MoO
4
2-
和WO
4
2-
的部分掺杂对基质发光位置和强度均有影响，能明显减弱VO
4
3-
的发光，但对Eu
3+
离子发光影响不大，添加电荷补偿剂F
-
可以加强VO
4
3-
对Eu
3+
离子的能量传递。通过调整基质VO
4
3-
发光和Eu
3+
离子发光，可以得到单一基质的白光荧光粉。初步探讨了阴离子掺杂对Eu
3+
离子红光发射增强的机理。
Abstract
Sr
3
La
A
x
V
3-
x
O
12
:Eu
3+
(
A
=Mo
W) phosphors were synthesized by a high temperature solid state method. X-ray diffraction(XRD)
scanning electron microscopy(SEM)
photoluminescence spectra
and lifetime were utilized to characterize the samples. Partial substitution of VO
4
3-
by MoO
4
2-
and WO
4
2-
in Sr
3
La
A
x
V
3-
x
O
12
:Eu
3+
(
A
=Mo
W) can weaken the emission of VO
4
3-
and cause a red shift of emission position
but has little influence on the emission of Eu
3+
ion. After charge compensation by adding F
-
in Sr
3
LaMo
x
F
x
V
3-
x
O
12
:Eu
3+
the excitation energy of VO
4
3-
can be transferred to Eu
3+
ion and then enhance the emission of Eu
3+
ion. A white phosphor of Sr
3
La
A
x
V
3-
x
O
12
:Eu
3+
(
A
=Mo
W) can be obtained by adjusting the emissions of the VO
4
3-
and Eu
3+
ions. The enhancement mechanism of the red emission of Eu
3+
by anion substitution was briefly discussed.
关键词
钒酸盐荧光粉阴离子掺杂Eu3+发光性能白光荧光粉
Keywords
vanadate phosphoranion substitutionluminescence of Eu3+white phosphor
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