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ZnAl2O4/CaAl12O19∶Mn4+荧光粉制备与发光性能
增强出版Preparation and Luminescent Properties of ZnAl2O4/CaAl12O19∶Mn4+ Phosphors
- 发光学报 2022年43卷第4期 页码：536-544
- 作者机构：
南宁师范大学 化学与材料学院，广西天然高分子化学与物理重点实验室，广西 南宁 530001
- 作者简介：
[ "林贵(1996- )，男，广西玉林人，硕士研究生，2019年于南宁师范大学获得学士学位，主要从事发光材料的研究。E-mail: lingui60@163.com" ]
[ "蒙丽丽(1972- )，女，广西上林人，博士，教授，2015年于广西大学获得博士学位，主要从事发光材料的研究。E-mail: mll_0001@163.com" ]
- 基金信息：国家自然科学基金(51762008)
DOI：10.37188/CJL.20210395
中图分类号： O482.31纸质出版日期：2022-04-01，
收稿日期：2021-12-16，
修回日期：2021-12-29，
- 稿件说明：
移动端阅览
林贵, 罗琦, 陈茜, 等. ZnAl2O4/CaAl12O19∶Mn4+荧光粉制备与发光性能[J]. 发光学报, 2022,43(4):536-544.
GUI LIN, QI LUO, QIAN CHEN, et al. Preparation and Luminescent Properties of ZnAl2O4/CaAl12O19∶Mn4+ Phosphors. [J]. Chinese journal of luminescence, 2022, 43(4): 536-544.
林贵, 罗琦, 陈茜, 等. ZnAl2O4/CaAl12O19∶Mn4+荧光粉制备与发光性能[J]. 发光学报, 2022,43(4):536-544. DOI： 10.37188/CJL.20210395.
GUI LIN, QI LUO, QIAN CHEN, et al. Preparation and Luminescent Properties of ZnAl2O4/CaAl12O19∶Mn4+ Phosphors. [J]. Chinese journal of luminescence, 2022, 43(4): 536-544. DOI： 10.37188/CJL.20210395.
摘要
采用传统高温固相法制备了系列
x
ZnAl
2
O
4
/CaAl
12
O
19
∶Mn
4+
(
x
ZAO/CAO∶Mn
4+
)混合相红光荧光粉，研究了ZnAl
2
O
4
掺杂对CaAl
12
O
19
∶Mn
4+
形貌和发光性能的影响。X射线衍射(XRD)表征结果表明，在1 723 K下煅烧6 h成功合成了
x
ZAO/CAO∶Mn
4+
混合相荧光粉，随着ZnAl
2
O
4
掺杂量的增加依然保持两相共存。荧光光谱分析表明，当
x
=1时，ZAO/CAO∶Mn
4+
具有最大的荧光强度，其值比CaAl
12
O
19
∶Mn
4+
的荧光强度提高了203%。相对于CaAl
12
O
19
∶Mn
4+
荧光粉，ZAO/CAO∶Mn
4+
荧光粉具有更长的荧光寿命，其内量子效率提高了211%。在298~418 K温度范围内，ZAO/CAO∶Mn
4+
荧光粉的绝对灵敏度(
S
a
)为4.32×10
-3
K
-1
；在418 K时，最大相对灵敏度(
S
r
)为3.65×10
-3
K
-1
。该荧光粉在光学测温方面具有潜在应用价值。
Abstract
A series of
x
ZnAl
2
O
4
/CaAl
12
O
19
∶Mn
4+
(
x
ZAO/CAO∶Mn
4+
) mixed-phase red-emit phosphors were prepared by traditional high-temperature solid-state method. The influence of ZnAl
2
O
4
doping on the morphology and luminescence properties of CaAl
12
O
19
∶Mn
4+
was investigated. The X-ray diffraction(XRD) characterization results show that the mixed-phase phosphors were successfully synthesized after sintered at 1 723 K for 6 h
and the two-phase coexistence is maintained with the increase of ZnAl
2
O
4
doping amount. Fluorescence spectrum shows that ZAO/CAO∶Mn
4+
has the largest fluorescence intensity when
x
=1
which is 203% higher than that of CaAl
12
O
19
∶Mn
4+
. Compared with CaAl
12
O
19
∶Mn
4+
phosphor
the lifetime of ZAO/CAO∶Mn
4+
is improved and internal quantum yield of ZAO/CAO∶Mn
4+
is 211% higher than that of CaAl
12
O
19
∶Mn
4+
. An absolute sensitivity(
S
a
) of 4.32×10
-3
K
-1
of the ZAO/CAO∶Mn
4+
phosphor was obtained in the range of 298-418 K and the maximum relative sensitivity(
S
r
) was 3.65×10
-3
K
-1
at 418 K
implying that it has potential application value in optical thermometry.
关键词
荧光粉光学测温发光性能Mn4+ZnAl2O4/CaAl12O19
Keywords
phosphoroptical thermometryluminescent propertiesMn4+ZnAl2O4/CaAl12O19
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