具有强紫外上转换发射特性的小尺寸、水溶性 NaYF4∶Yb,Tm纳米晶的合成与表征

宋维业; 石峰; 赵丹; 秦伟平

doi:10.3788/fgxb20123307.0693

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具有强紫外上转换发射特性的小尺寸、水溶性 NaYF₄∶Yb,Tm纳米晶的合成与表征

材料合成及性能研究 | 更新时间：2020-08-12

- 具有强紫外上转换发射特性的小尺寸、水溶性 NaYF₄∶Yb,Tm纳米晶的合成与表征
- Synthesis and Characterization of Small Size, Water Soluble, and Intense Ultraviolet Upconversion Emission of β-NaYF₄∶Yb,Tm Nanocrystals
- 发光学报 2012年33卷第7期页码：688-692
- 作者机构：
  
  集成光电子国家重点联合实验室吉林大学实验区, 吉林大学电子科学与工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
  
  国家自然科学基金(60908001,60908031,51072065,61077033,61178073)资助项目()
- DOI：10.3788/fgxb20123307.0693
  中图分类号： O482.31
- 纸质出版日期：2012-7-10，
  
  网络出版日期：2012-7-10，
  
  收稿日期：2012-5-8，
  
  修回日期：2012-5-20，
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宋维业, 石峰, 赵丹, 秦伟平. 具有强紫外上转换发射特性的小尺寸、水溶性 NaYF4∶Yb,Tm纳米晶的合成与表征[J]. 发光学报, 2012,33(7): 688-692

SONG Wei-ye, SHI Feng, ZHAO Dan, QIN Wei-ping. Synthesis and Characterization of Small Size, Water Soluble, and Intense Ultraviolet Upconversion Emission of β-NaYF4∶Yb,Tm Nanocrystals[J]. Chinese Journal of Luminescence, 2012,33(7): 688-692
宋维业, 石峰, 赵丹, 秦伟平. 具有强紫外上转换发射特性的小尺寸、水溶性 NaYF4∶Yb,Tm纳米晶的合成与表征[J]. 发光学报, 2012,33(7): 688-692 DOI： 10.3788/fgxb20123307.0693.

SONG Wei-ye, SHI Feng, ZHAO Dan, QIN Wei-ping. Synthesis and Characterization of Small Size, Water Soluble, and Intense Ultraviolet Upconversion Emission of β-NaYF4∶Yb,Tm Nanocrystals[J]. Chinese Journal of Luminescence, 2012,33(7): 688-692 DOI： 10.3788/fgxb20123307.0693.

摘要

利用高温热解法合成了小尺寸、粒径均匀分布的NaYF

∶18%Yb

0.5%Tm纳米晶

并通过配体交换的方法实现了纳米晶油溶性向水溶性的转变。通过X射线衍射仪、透射电子显微镜和荧光光谱仪对修饰前后的纳米晶进行了结构、形貌和光学性质的表征。实验结果表明:所合成的样品是纯六角相NaYF

(β-NaYF

)

且粒径均匀分布在35 nm左右。在980 nm近红外光激发下

修饰前后的纳米晶具有强的紫外上转换发射特性

其Tm

离子的五光子上转换发光强度强于四光子和三光子上转换发光强度。鉴于这种特殊的光学性质以及小的尺寸

所合成的水溶性纳米晶在生物医学领域显示出潜在的应用价值。

Abstract

Uniform NaYF

∶18%Yb

0.5%Tm nanocrystals were synthesized via thermal decomposition method following high temperature

and then a change of the nanocrystals was made from oil-soluble to water-soluble by ligand-exchanged method. X-ray diffraction (XRD) analyses showed that the samples were β-NaYF

nanocrystals. The TEM images exhibited that the nanocrystals had an average size of 35 nm. Under 980 nm near-infrared laser excitation

the samples showed intense ultraviolet upconversion emission. 5-photon upconversion fluorescence of the Tm

ions in the nanocrystals was stronger than 4-photon and 3-photon upconversion fluorescence. Due to special optical properties and small size

the water-soluble nanocrystals would show potential applications in the biomedical field.

关键词

NaYF4水溶性纳米晶强紫外光发射

Keywords

NaYF4water-solublenanocrystalsintense ultraviolet emission

references

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Boyer J C, Cuccia L A, Capobianco J A. Synthesis of colloidal upconverting NaYF4∶Er3+/Yb3+ and Tm3+/Yb3+ monodisperse nanocrystals [J]. Nano Lett., 2007, 7(3):847-852.

Shi F, Wang J S, Qin W P, et al. Facile synthesis of β-NaLuF4∶Yb/Tm hexagonal nanoplates with intense ultraviolet upconversion luminescence [J]. Cryst. Eng. Comm., 2011, 13(11):3782-3787.

Shi F, Wang J S, Qin W P, et al. Greatly enhanced size-tunable ultraviolet upconversion luminescence of monodisperse β-NaYF4∶Yb,Tm nanocrystals [J]. J. Mater. Chem., 2011, 21(35):13413-13421.

Huang M W, Meng F Y, Yuan X H, et al. Research on upconversion spectra of NaY1-x-yF4∶Yb3+em>y,Tm3+x nanoparticles [J]. Chin. J. Lumin. (发光学报), 2008, 29(1):192-194 (in Chinese).

Chen H, Chuai X H, Qin W P, et al. Synthesis and optical properties of water soluble upconversion NaYF4∶Yb,Tm nanoparticles [J]. Chin. J. Lumin. (发光学报), 2010, 31(4):538-542 (in Chinese).

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