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吉林大学电子科学与工程学院 集成光电子国家重点联合实验室,吉林 长春,130012
纸质出版日期:2012-5-10,
网络出版日期:2012-5-10,
收稿日期:2012-3-22,
修回日期:2012-4-17,
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刘叶, 于放达, 刘树森, 赵丹, 何春凤, 郑克志, 秦伟平. 近红外光诱导下NaYbF<sub>4</sub>:Tm<sup>3+</sup>,Eu<sup>3+</sup> 体系中Eu<sup>3+</sup>的上转换发光[J]. 发光学报, 2012,(5): 476-480
LIU Ye, YU Fang-da, LIU Shu-sen, ZHAO Dan, HE Chun-feng, ZHENG Ke-zhi, QIN Wei-ping. Upconversion Luminescence of Eu<sup>3+</sup> in NaYbF<sub>4</sub>∶Tm<sup>3+</sup>,Eu<sup>3+</sup> Nanocrystals Induced by 980 nm Excitation[J]. Chinese Journal of Luminescence, 2012,(5): 476-480
刘叶, 于放达, 刘树森, 赵丹, 何春凤, 郑克志, 秦伟平. 近红外光诱导下NaYbF<sub>4</sub>:Tm<sup>3+</sup>,Eu<sup>3+</sup> 体系中Eu<sup>3+</sup>的上转换发光[J]. 发光学报, 2012,(5): 476-480 DOI: 10.3788/fgxb20123305.0476.
LIU Ye, YU Fang-da, LIU Shu-sen, ZHAO Dan, HE Chun-feng, ZHENG Ke-zhi, QIN Wei-ping. Upconversion Luminescence of Eu<sup>3+</sup> in NaYbF<sub>4</sub>∶Tm<sup>3+</sup>,Eu<sup>3+</sup> Nanocrystals Induced by 980 nm Excitation[J]. Chinese Journal of Luminescence, 2012,(5): 476-480 DOI: 10.3788/fgxb20123305.0476.
利用水热法制备得到NaYbF
4
:0.01%Tm
3+
20%Eu
3+
上转换材料
利用X射线衍射分析、扫描电子显微镜及光谱测试技术分别对其进行了结构、形貌以及光谱性质的表征。在980 nm近红外激光激发下
得到了Eu
3+
的可见到紫外范围的上转换荧光发射。分析表明:共掺杂NaYbF
4
纳米材料中Tm
3+
到Eu
3+
离子的能量传递对布居Eu
3+
离子的激发态能级
获得Eu
3+
的上转换发光起着至关重要的作用。另外
在实验中首次获得了Eu
3+
对应于
3
P
0
7
F
j
(
j
=0
1
2)能级跃迁的上转换光发射。
NaYbF
4
∶0.01%Tm
3+
20%Eu
3+
nanocrystals were synthesized by hydrothermal method. The crystalline phase
morphology
and optical properties were characterized by X-ray diffraction
scanning electron microscope and luminescent spectra. The samples are nano-rods with uniform size distribution. Their length is 500 nm and diameter is 200 nm on average. Under 980 nm near-infrared laser excitation
ultraviolet and visible upconversion luminescence of Eu
3+
was obtained. In the codoped NaYbF
4
nano-rods
the energy transfer from Tm
3+
to Eu
3+
and the bridging effect of Tm
3+
ions play important roles in populating the high-energy excited states of Eu
3+
. Furthermore
the upconversion emissions from
3
P
0
7
F
j
(
j
=0
1
2) of Eu
3+
were observed for the first time.
铕纳米材料紫外上转换发光
Eu3+nanomaterialsultravioletupconversionluminescence
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