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水热法合成GdInO3:Yb3+/Ho3+荧光粉及其上转换发光性能
Hydrothermal Systheis and Upconversion Emission Properties of GdInO3: Yb3+/Ho3+ Phosphors
- 发光学报 2019年40卷第12期 页码：1486-1493
- 作者机构：
江西理工大学 化学化工学院,江西 赣州,341000
- 作者简介：
- 基金信息：国家自然科学基金（51862012）();江西省重大自然科学基金（20165ABC28010）资助项目()
DOI：10.3788/fgxb20194012.1486
中图分类号： O484.4收稿日期：2019-07-03，
修回日期：2019-09-05，
网络出版日期：2019-12-05，
纸质出版日期：2019-12-05
- 稿件说明：
移动端阅览
廖金生, 孔莉芸, 王明华等. 水热法合成GdInO<sub>3</sub>:Yb<sup>3+</sup>/Ho<sup>3+</sup>荧光粉及其上转换发光性能[J]. 发光学报, 2019,40(12): 1486-1493
LIAO Jin-sheng, KONG Li-yun, WANG Ming-hua etc. Hydrothermal Systheis and Upconversion Emission Properties of GdInO<sub>3</sub>: Yb<sup>3+</sup>/Ho<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1486-1493
廖金生, 孔莉芸, 王明华等. 水热法合成GdInO<sub>3</sub>:Yb<sup>3+</sup>/Ho<sup>3+</sup>荧光粉及其上转换发光性能[J]. 发光学报, 2019,40(12): 1486-1493 DOI： 10.3788/fgxb20194012.1486.
LIAO Jin-sheng, KONG Li-yun, WANG Ming-hua etc. Hydrothermal Systheis and Upconversion Emission Properties of GdInO<sub>3</sub>: Yb<sup>3+</sup>/Ho<sup>3+</sup> Phosphors[J]. Chinese Journal of Luminescence, 2019,40(12): 1486-1493 DOI： 10.3788/fgxb20194012.1486.
摘要
采用水热过程与进一步热处理的方法合成了六方相GdInO
3
:Yb
3+
/Ho
3+
荧光粉。采用X射线粉末衍射（PXRD）对晶体结构和相纯度进行了检测，结构精修结果表明，获得的样品为纯的六方相GdInO
3
:Yb
3+
/Ho
3+
荧光粉。用扫描电镜（SEM）和透射电镜（TEM）对合成材料的形貌进行了表征。在980 nm激光激发下，观察到Ho
3+
离子的539 nm绿光发射（
5
S
2
/
5
F
4
5
I
8
）和665 nm红光发射（
5
F
5
5
I
8
）。此外，还发现通过改变Ho
3+
浓度得到了从绿光到黄光的可调发光特性。可调发光是由交叉弛豫（
5
F
4
/
5
S
2
+
5
I
7
5
F
5
+
5
I
6
）过程引起的。GdInO
3
:Yb
3+
/Ho
3+
是一种很好的上转换材料，可用于照明和显示领域。
Abstract
Yb
3+
and Ho
3+
codoped hexagonal GdInO
3
phosphor has been synthesized by hydrothermal process and further heat treatment. The crystal structure and phase purity were checked by means of powder X-ray diffraction (PXRD)
and the refinement results showed that pure phase GdInO
3
:Yb
3+
/Ho
3+
phosphors were obtained. The morphology of the synthesized materials was characterized by SEM and TEM. The upconversion (UC) luminescence properties of the phosphor were investigated. Green emission at 539 nm (
5
S
2
/
5
F
4
5
I
8
) and red emission at 665 nm (
5
F
5
5
I
8
) of Ho
3+
were observed upon 980 nm laser excitation. Moreover
it has been found that tuneable emission characteristics from green to yellow were obtained
via
the Ho
3+
concentration modulation. The tunable emission is due to the cross-relaxation process (
5
F
4
/
5
S
2
+
5
I
7
5
F
5
+
5
I
6
). The GdInO
3
:Yb
3+
/Ho
3+
can be a good candidate for upconversion material in lighting and display fields.
关键词
Keywords
references
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