共 32 条
Synthesis and photoluminescence properties of self-assembled Eu-doped ZnO hollow microspheres
被引:7
作者:
Xu, Jin
[1
,2
]
Wang, Nating
[1
]
Wang, Weiqiang
[1
]
机构:
[1] Xiamen Univ, Coll Mat, Dept Mat Sci & Engn, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Key Lab Fire Retardant Mat Fujian Prov, Xiamen 361005, Peoples R China
来源:
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
|
2011年
/
208卷
/
12期
基金:
中国国家自然科学基金;
关键词:
photoluminescence;
solvothermal;
transmission electron microscopy;
ZnO:Eu3+;
EFFICIENT ENERGY-TRANSFER;
ZINC-OXIDE;
HYDROTHERMAL SYNTHESIS;
OPTICAL-PROPERTIES;
ROOM-TEMPERATURE;
EU3+-DOPED ZNO;
NANOCRYSTALS;
SPHERES;
NANOSTRUCTURES;
ARCHITECTURES;
D O I:
10.1002/pssa.201127290
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
ZnO hollow microspheres with a shell wall consisting of crystalline ZnO nanosheets were synthesized by using Zn5(CO3)2(OH)6 microspheres as spherical templates. Zn5(CO3)2(OH)6 microspheres were first fabricated by a solvothermal procedure in an ethylene glycol (EG)water solution. ZnO microspheres with a hexagonal structure were identified by means of X-ray diffraction (XRD) and selected-area electron diffraction (SAED). On the basis of the results, a possible self-assembly growth mechanism was proposed. It reveals that the EG played an important role in determining the hollow morphologies of Zn5(CO3)2(OH)6 structures. In addition, photoluminescence (PL) investigation of ZnO:Eu3+ suggested that a direct energy transfer occurred, which was ascribed to the energy transfer from ZnO host to Eu3+ ions.
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页码:2833 / 2838
页数:6
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