期刊
NANOTECHNOLOGY
卷 21, 期 12, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/0957-4484/21/12/125604
关键词
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资金
- UTA
- NSF
- DHS joint program [2008-DN-077-ARI016-03]
- US Army Medical Research Acquisition Activity (USAMRAA) [W81XWH-05-C-0101, BC095348, PC094562]
- Hi-Tech Research and Development Program of China (the 863 program) [2007AA03Z312]
- NNSF of China [10574047]
- China Scholarship Council
- Department of Energy's Office of Biological and Environmental Research [DE-AC06-76RLO1830]
CePO4:Tb/LaPO4 nanowires with a core/sheath architecture have been successful synthesized by a facile aqueous chemical method mediated by original CePO4:Tb aggregation seeds. The seed crystals serve as both a luminescence center and a nucleation site for epitaxial growth. The seed nanocrystals have an irregular sphere-like shape with an average size of around 6.8 nm and a narrow size distribution. When the seed crystals are coated with LaPO4, the resulting core/sheath CePO4:Tb/LaPO4 nanowires have mean diameters of about 7.6 nm and lengths up to 331 nm. Both photo-and x-ray luminescence demonstrate that the LaPO4 coating increases the luminescence efficiency. These core/sheath structured nanowires may find potential applications in solid state lighting, medical imaging and radiation detection.
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