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Lanthanide doped Y6O5F8/YF3 microcrystals: phase-tunable synthesis and bright white upconversion photoluminescence properties
被引:42
作者:
Wang, Song
[1
,2
]
Deng, Ruiping
[1
,2
]
Guo, Hailing
[1
,2
]
Song, Shuyan
[1
,2
]
Cao, Feng
[1
,2
]
Li, Xiyan
[1
,2
]
Su, Shengqun
[1
,2
]
Zhang, Hongjie
[1
]
机构:
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
基金:
中国国家自然科学基金;
关键词:
HYDROTHERMAL SYNTHESIS;
TELLURITE GLASSES;
ENERGY-TRANSFER;
LUMINESCENCE;
NANOTUBES;
EMISSION;
GREEN;
ER3+;
BLUE;
YB3+;
D O I:
10.1039/c0dt00446d
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
High-quality Y6O5F8/YF3 microcrystals have been synthesised by using a hydrothermal and subsequent calcination route. Upon changing the initial solution pH value, the as-prepared microcrystal can be well tuned from YF3 octahedron microcrystals to YF3 hollow spheres and finally to Y6O5F8 microtubes. The as-obtained microcrystals have been characterised by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and photoluminescence (PL) spectra. When the Y6O5F8:Ln(3+) microtubes are excited by a 980 nm continual wave laser diode, bright red, green, and blue room temperature upconversion PL emissions have been observed. A series of white light emissions have been obtained by precisely adjusting dopants concentration in Y6O5F8 microtubes.
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页码:9153 / 9158
页数:6
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