XIAO Lin-jiu, YAN Feng-qiao, XIE Ying, ZENG Fan, CHEN Yong-jie, LI Wen-ze. Preparation and Fluorescent Properties of Bi<sup>3+</sup> Doped, Yb<sup>3+</sup> Doped and Bi<sup>3+</sup>,Yb<sup>3+</sup> Codoped Gd<sub>2</sub>O<sub>3</sub> Phosphors[J]. Chinese Journal of Luminescence, 2012,33(4): 383-388
XIAO Lin-jiu, YAN Feng-qiao, XIE Ying, ZENG Fan, CHEN Yong-jie, LI Wen-ze. Preparation and Fluorescent Properties of Bi<sup>3+</sup> Doped, Yb<sup>3+</sup> Doped and Bi<sup>3+</sup>,Yb<sup>3+</sup> Codoped Gd<sub>2</sub>O<sub>3</sub> Phosphors[J]. Chinese Journal of Luminescence, 2012,33(4): 383-388 DOI: 10.3788/fgxb20123304.0383.
phosphors were prepared by sol-gel method. The preparation conditions of Gd
2-
x-y
O
3
:Bi
x
3+
Yb
y
3+
phosphors were investigated. The phases of the phosphors were characterized
and the fluorescent properties of Gd
2-
x-y
O
3
:Bi
x
3+
Yb
y
3+
were studied. Under the excitation of 338 nm
which is the characteristic excitation of Bi
3+
NIR emissions of Yb
3+
characteristic emission from 900 to 1 100 nm and the characteristic emission of Bi
3+
from 500 to 700 nm have been obtained. That suggests a very efficient energy transfer from Bi
3+
ions to Yb
3+
ions in Gd
2
O
3
:Bi
3+
Yb
3+
.The results indicate that the Gd
2
O
3
:Bi
3+
Yb
3+
material has potential application in the silicon based solar cells by converting 300~400 nm photon which is almost useless in the silicon solar cell into 400~700 nm and 1 000 nm photons which are absorbed strongly by the Si-solar cell. And the photovoltaic efficiency of the Si-solar cell will be improved.
关键词
近红外荧光粉溶胶-凝胶法稀土掺杂能量传递
Keywords
near-infrared phosphorssol-gel methodrare-earth dopedenergy transfer
references
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