Title of article :
Reflux synthesis, formation mechanism, and photoluminescence performance of monodisperse Y2O3:Eu3+ nanospheres
Author/Authors :
Tingting Yan، نويسنده , , Dengsong Zhang، نويسنده , , Liyi Shi، نويسنده , , Haopeng Yang، نويسنده , , Hailing Mai، نويسنده , , Jianhui Fang، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2009
Pages :
10
From page :
234
To page :
243
Abstract :
Monodisperse Y2O3:Eu3+ nanospheres have been successfully synthesized by a low-temperature reflux method assisted by cetyltrimethyl ammonium bromide (CTAB). The products were characterized by X-ray diffraction spectroscopy, transmission electron microscopy, scanning electron microscopy, Fourier-transform infrared spectrophotometer, thermogravimetric and differential thermal analysis, and X-ray photoelectron spectroscopy. It is demonstrated that the size of Y2O3:Eu3+ nanospheres can be controlled from 80 to 140 nm with narrow size distribution by adjusting the amount of CTAB. A possible formation mechanism of Y2O3:Eu3+ nanospheres has been proposed. The photoluminescence analysis shows that Y2O3:Eu3+ nanospheres obtained have a strong red emission peak of Eu3+ ions at around 611 nm, due to the 5D0 → 7F2 forced electric dipole transition of Eu3+ ions. It is found that the photoluminescence performance of the obtained Y2O3:Eu3+ nanospheres is stronger than that of the Y2O3:Eu3+ nanorods synthesized by a traditional hydrothermal route.
Keywords :
Chemical synthesis , Luminescence , Nanostructures , Oxides
Journal title :
Materials Chemistry and Physics
Serial Year :
2009
Journal title :
Materials Chemistry and Physics
Record number :
1058692
Link To Document :
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