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集成光电子学国家重点联合实验室 吉林大学电子科学与工程学院,吉林 长春,130012
纸质出版日期:2015-4-3,
收稿日期:2015-1-13,
修回日期:2015-2-22,
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郎言波, 陈欢, 宋维业等. 疏水基团修饰的核-壳型 NaYF<sub>4</sub>/NaLuF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>纳米粒子设计制备[J]. 发光学报, 2015,36(4): 382-388
LANG Yan-bo, CHEN Huan, SONG Wei-ye etc. Synthesis of Hydrophobic Ligands Modified Core-shell NaYF<sub>4</sub>/NaLuF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup> Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(4): 382-388
郎言波, 陈欢, 宋维业等. 疏水基团修饰的核-壳型 NaYF<sub>4</sub>/NaLuF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup>纳米粒子设计制备[J]. 发光学报, 2015,36(4): 382-388 DOI: 10.3788/fgxb20153604.0382.
LANG Yan-bo, CHEN Huan, SONG Wei-ye etc. Synthesis of Hydrophobic Ligands Modified Core-shell NaYF<sub>4</sub>/NaLuF<sub>4</sub>:Yb<sup>3+</sup>,Tm<sup>3+</sup> Nanoparticles[J]. Chinese Journal of Luminescence, 2015,36(4): 382-388 DOI: 10.3788/fgxb20153604.0382.
通过异质核诱导
利用溶剂热法在较低温度下合成了具有疏水表面的上转换发光稀土核-壳NaYF
4
/NaLuF
4
:20%Yb
1%Tm纳米粒子
并利用X射线衍射仪、透射电子显微镜、傅里叶变换红外吸收光谱仪以及荧光光谱仪等测试设备对其进行了结构、形貌和上转换光谱的表征。测试结果表明
纳米粒子核为立方相
壳层为六角相。核-壳型纳米粒子的尺寸平均在20 nm以下
分布较为均匀。在980 nm近红外光激发下
核-壳型纳米粒子发射出较强的紫色和紫外荧光
且发光强度明显高于同尺寸立方相NaLuF
4
:20%Yb
1%Tm纳米粒子。这表明利用异质核诱导的方法制备的核-壳型纳米粒子在生物医学领域具有更高的应用价值。
utilizing cubic NaYF
4
nanoparticles as cores
we synthesized hydrophobic core-shell -NaYF
4
/-NaLuF
4
:20%Yb
1%Tm upconversion nanoparticles under a mild solvothermal condition. The core-shell nanoparticles were characterized by X-ray diffraction
transmission electron microscopy
Fourier transform infrared spectrometer and fluorescence spectrometer.The measurement results showed that -NaYF
4
cores were about 10-15 nm
and average size of -NaYF
4
/-NaLuF
4
:20%Yb
1%Tm upconversion nanoparticles was about 20 nm. Both the core and core-shell nanoparticles possessed narrow size distributions. The core-shell nanoparticles showed stronger luminescence intensity than those of cubic NaLuF
4
:20%Yb
1%Tm with similar size. The detection results showed that this kind of hydrophobic core-shell -NaYF
4
/-NaLuF
4
:20%Yb
1%Tm nanoparticle has a higher potential value in biomedical applications.
上转换发光稀土掺杂纳米颗粒异质核-壳诱导纳米粒子疏水基团修饰
upconversion luminescencerare-earth doped nanoparticlescore-shell nanoparticleshydrophobic surface
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