氮气氛中高温退火对NaYF4∶Yb3+, Er3+ 纳米粒子上转换发光的影响

赵军伟; 单含; 贾铁昆; 范翊; 孔祥贵

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氮气氛中高温退火对NaYF₄∶Yb³⁺, Er³⁺ 纳米粒子上转换发光的影响

材料合成及性能研究 | 更新时间：2020-08-12

- 氮气氛中高温退火对NaYF₄∶Yb³⁺, Er³⁺ 纳米粒子上转换发光的影响
- Effect of High Temperature Annealing in Nitrogen on Upconversion Luminescence of NaYF₄∶Yb³⁺, Er³⁺ Nanoparticles
- 发光学报 2011年32卷第12期页码：1227-1232
- 作者机构：
  
  1. 中国科学院苏州生物医学工程技术研究所,江苏苏州,215163
  2. 洛阳理工学院材料科学与工程系,河南洛阳,471023
  3. 长春理工大学,吉林长春,中国,130022
  4. 中国科学院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)();河南省基础前沿与技术研究(102300410172)();洛阳市自然科学基金(2009YZ04)资助项目()
- DOI：
  中图分类号： O482.31
- 收稿日期：2011-10-15，
  
  修回日期：2011-11-02，
  
  网络出版日期：2011-12-22，
  
  纸质出版日期：2011-12-22
- 稿件说明：
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赵军伟, 单含, 贾铁昆, 范翊, 孔祥贵. 氮气氛中高温退火对NaYF4∶Yb3+, Er3+ 纳米粒子上转换发光的影响[J]. 发光学报, 2011,32(12): 1227-1232

ZHAO Jun-wei, SHAN Han, JIA Tie-kun, FAN Yi, KONG Xiang-gui. Effect of High Temperature Annealing in Nitrogen on Upconversion Luminescence of NaYF4∶Yb3+, Er3+ Nanoparticles[J]. Chinese Journal of Luminescence, 2011,32(12): 1227-1232
赵军伟, 单含, 贾铁昆, 范翊, 孔祥贵. 氮气氛中高温退火对NaYF4∶Yb3+, Er3+ 纳米粒子上转换发光的影响[J]. 发光学报, 2011,32(12): 1227-1232 DOI：

ZHAO Jun-wei, SHAN Han, JIA Tie-kun, FAN Yi, KONG Xiang-gui. Effect of High Temperature Annealing in Nitrogen on Upconversion Luminescence of NaYF4∶Yb3+, Er3+ Nanoparticles[J]. Chinese Journal of Luminescence, 2011,32(12): 1227-1232 DOI：

摘要

以柠檬酸三钠为螯合剂

采用共沉淀和水热相结合的方法成功制备出尺寸为40 nm的NaYF

∶Yb

纳米粒子。将得到的部分样品在300 ℃氮气保护下退火2 h。退火前后的样品晶体结构都属于立方相

尺寸保持在40 nm左右。在980 nm光激发下

退火后样品的上转换发光整体强度和绿光相对发射强度明显增强。分析认为高温退火改善了纳米粒子的结晶质量并降低了纳米粒子表面有机配体的浓度

改善了样品上转换发光性能。

Abstract

NaYF

∶Yb

nanoparticles with the size about 40 nm were successfully prepared by the combination of coprecipitation and hydrothermal methods using trisodium citrate as chelator. The obtained sample was divided into two parts

one of them was annealed in nitrogen at 300 ℃ for 2 h. The crystal structure of the NaYF

∶Yb

nanoparticles before and after annealing treatment are in cubic phase

the size of which is about 40 nm. Under the excitation of 980 nm laser

the total upconversion luminescence intensity and the relative green emission intensity of the sample after annealing is much stronger than that of the sample without annealing treatment. It is found that high temperature annealing improved the crystallization of the sample and reduced the concentration of the organic molecules on the surface of the nanoparticles

resulting in a great improve of the upconversion luminescence property.

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references

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