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广东省量子调控工程与材料重点实验室 华南师范大学物理与电信工程学院,广东 广州,510006
纸质出版日期:2015-6-3,
收稿日期:2015-3-31,
修回日期:2015-4-10,
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王银珍, 段萍萍, 李宁等. 水热法制备Eu<sup>3+</sup>掺杂&beta;-Ga<sub>2</sub>O<sub>3</sub>粉体的结构及性能[J]. 发光学报, 2015,36(6): 605-609
WANG Yin-zhen, DUAN Ping-ping, LI Ning etc. Structure and Properties of Eu<sup>3+ </sup>Doped &beta;-Ga<sub>2</sub>O<sub>3</sub> Powders by Hydrothermal Method[J]. Chinese Journal of Luminescence, 2015,36(6): 605-609
王银珍, 段萍萍, 李宁等. 水热法制备Eu<sup>3+</sup>掺杂&beta;-Ga<sub>2</sub>O<sub>3</sub>粉体的结构及性能[J]. 发光学报, 2015,36(6): 605-609 DOI: 10.3788/fgxb20153606.0605.
WANG Yin-zhen, DUAN Ping-ping, LI Ning etc. Structure and Properties of Eu<sup>3+ </sup>Doped &beta;-Ga<sub>2</sub>O<sub>3</sub> Powders by Hydrothermal Method[J]. Chinese Journal of Luminescence, 2015,36(6): 605-609 DOI: 10.3788/fgxb20153606.0605.
采用水热法制备了Eu
3+
掺杂的-Ga
2
O
3
粉体
利用X射线粉末衍射、场发射扫描电子显微镜、透射电子显微镜、拉曼光谱和发光光谱等测试手段对其物相、形貌和发光性能等进行了研究。结果表明:所得样品为单斜晶系的-Ga
2
O
3
;在波长为325 nm的He-Cd激光器激发下
发射光谱的最强峰位于612 nm
属于Eu
3+
的
5
D
0
7
F
2
电偶极跃迁;在模拟太阳光照射下
样品对甲基橙具有较高的光催化降解率
经过2 h后
甲基橙的降解率可达到75%。
Eu
3+
doped -Ga
2
O
3
powders were prepared by hydrothermal method. X-ray diffraction
field emission scanning electron microscopy
transmission electron microscopy
Raman spectroscopy
and photoluminescence spectra were used to characterize the structure and properties of -Ga
2
O
3
: Eu
3+
powders. The results reveal that the obtained samples are monoclinic -Ga
2
O
3
powders. Under the excitation of 325 nm He-Cd laser
the strongest emission peak is located at 612 nm
corresponding to the
5
D
0
7
F
2
transition of Eu
3+
. -Ga
2
O
3
:Eu
3+
powders have high photocatalytic degradation rate for methyl orange under simulated solar irradiation
and the photocatalytic degradation rate of methyl orange is up to 75% after 2 h degradation.
水热法Eu3+:&beta-Ga2O3光致发光
hydrothermal method&beta-Ga2O3:Eu3+photoluminescence
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