氨基磷酸辅助的水热合成NaYF4 ∶ Yb3+ ,Er3+ 纳米晶及其上转换发光

赵军伟; 孔祥贵

doi:10.3788/fgxb20113207.0675

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氨基磷酸辅助的水热合成NaYF₄ ∶ Yb³⁺ ,Er³⁺ 纳米晶及其上转换发光

材料合成及性能研究 | 更新时间：2020-08-12

- 氨基磷酸辅助的水热合成NaYF₄ ∶ Yb³⁺ ,Er³⁺ 纳米晶及其上转换发光
- AEP-assisted Hydrothermal Synthesis and Upconversion Luminescence of NaYF₄ ∶ Yb³⁺ ,Er³⁺ Nanocrystals
- 发光学报 2011年32卷第7期页码：675-679
- 作者机构：
  
  1. 洛阳理工学院材料科学与工程系,河南洛阳,471023
  2. 中国科学院激发态物理重点实验室长春光学精密机械与物理研究所,吉林长春,130033
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10904142,11004189)();洛阳理工学院博士科研基金资助项目()
- DOI：10.3788/fgxb20113207.0675
  中图分类号： O482.31
- 收稿日期：2011-01-25，
  
  修回日期：2011-04-24，
  
  网络出版日期：2011-07-22，
  
  纸质出版日期：2011-07-22
- 稿件说明：
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赵军伟, 孔祥贵. 氨基磷酸辅助的水热合成NaYF4 ∶ Yb3+ ,Er3+ 纳米晶及其上转换发光[J]. 发光学报, 2011,32(7): 675-679

ZHAO Jun-wei, KONG Xiang-gui. AEP-assisted Hydrothermal Synthesis and Upconversion Luminescence of NaYF4 ∶ Yb3+ ,Er3+ Nanocrystals[J]. Chinese Journal of Luminescence, 2011,32(7): 675-679
赵军伟, 孔祥贵. 氨基磷酸辅助的水热合成NaYF4 ∶ Yb3+ ,Er3+ 纳米晶及其上转换发光[J]. 发光学报, 2011,32(7): 675-679 DOI： 10.3788/fgxb20113207.0675.

ZHAO Jun-wei, KONG Xiang-gui. AEP-assisted Hydrothermal Synthesis and Upconversion Luminescence of NaYF4 ∶ Yb3+ ,Er3+ Nanocrystals[J]. Chinese Journal of Luminescence, 2011,32(7): 675-679 DOI： 10.3788/fgxb20113207.0675.

摘要

以氨基磷酸为螯合剂

通过共沉淀与水热法相结合

成功地制备出NaYF

∶ Yb

纳米晶。研究结果表明:水热前后NaYF

∶ Yb

纳米晶均为立方相结构

其颗粒大小约为80 nm。在980 nm近红外光激发下

实现了样品的上转换发光。样品的上转换绿红光发射带归因于Er

的

11/2

3/2

15/2

和

9/2

15/2

能级的跃迁。水热处理后的样品的上转换发光强度与水热处理前相比有了很大的增强。水热处理后

样品表面的有机配体的减少和样品结晶度的提高是样品上转换发光显著增强的主要原因。

Abstract

NaYF

∶ Yb

nanocrystals were successfully prepared by the combination of coprecipitation and hydrothermal methods using 2-aminoethyl phosphate (AEP) as chelator. It is found that the crystal structures of the NaYF

∶ Yb

nanoparticles before and after hydrothermal treatment are both in cubic phase

the size of which is about 80 nm. The upconversion luminescence from the two samples was observed under the excitation of 980 nm laser. The green and red emission bands are attributed to the transition of

11/2

3/2

15/2

and

9/2

15/2

energy levels of Er

ions

respectively. The upconversion luminescence intensity of the sample with hydrothermal treatment is much stronger than that of the sample without hydrothermal treatment due to the improved crystallization of the samples and the reduction of organic ligands on the surface of the NaYF

∶ Yb

nanoparticles.

关键词

Keywords

references

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