Synthesis and Luminescence Properties of β-NaYF4 Doped with Eu3+ and Tb3+

JIANG Chen-fei; HUANG Wen-juan; DING Ming-ye; SONG Yan; NI Ya-ru; LU Chun-hua; XU Zhong-zi

doi:10.3788/fgxb20123307.0683

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Synthesis and Luminescence Properties of β-NaYF₄ Doped with Eu³⁺ and Tb³⁺

更新时间：2020-08-12

- Synthesis and Luminescence Properties of β-NaYF₄ Doped with Eu³⁺ and Tb³⁺
- Chinese Journal of Luminescence Vol. 33, Issue 7, Pages: 683-687(2012)
- 作者机构：
  
  南京工业大学材料科学与工程学院,江苏南京,210009
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123307.0683
  CLC： O482.31
- Received：27 March 2012，
  
  Revised：20 May 2012，
  
  Published Online：10 July 2012，
  
  Published：10 July 2012
- 稿件说明：
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蒋晨飞, 黄文娟, 丁明烨, 宋艳, 倪亚茹, 陆春华, 许仲梓. 双掺Eu3+ 和Tb3+ 的下转换β-NaYF4的合成与发光性能[J]. 发光学报, 2012,33(7): 683-687

JIANG Chen-fei, HUANG Wen-juan, DING Ming-ye, SONG Yan, NI Ya-ru, LU Chun-hua, XU Zhong-zi. Synthesis and Luminescence Properties of β-NaYF4 Doped with Eu3+ and Tb3+[J]. Chinese Journal of Luminescence, 2012,33(7): 683-687
蒋晨飞, 黄文娟, 丁明烨, 宋艳, 倪亚茹, 陆春华, 许仲梓. 双掺Eu3+ 和Tb3+ 的下转换β-NaYF4的合成与发光性能[J]. 发光学报, 2012,33(7): 683-687 DOI： 10.3788/fgxb20123307.0683.

JIANG Chen-fei, HUANG Wen-juan, DING Ming-ye, SONG Yan, NI Ya-ru, LU Chun-hua, XU Zhong-zi. Synthesis and Luminescence Properties of β-NaYF4 Doped with Eu3+ and Tb3+[J]. Chinese Journal of Luminescence, 2012,33(7): 683-687 DOI： 10.3788/fgxb20123307.0683.

摘要

采用高温溶剂热法合成了下转换发光材料NaYF

∶Eu

和NaYF

∶Eu

采用X射线衍射(XRD)、场发射扫描电镜(FESEM)、激发(PLE)谱和光致发光(PL)谱对材料的物相结构、形貌特征和发光性质进行了表征和研究

并分析了其发光原理。结果表明:所合成的NaYF

∶Eu

和NaYF

∶Eu

为纯六方相晶体

尺寸在100 nm左右;改变Eu

和Tb

的掺杂浓度后晶格结构没有发生明显变化

说明Eu

和Tb

取代的是Y

的晶格位置;在394 nm光的激发下

检测到Eu

在

→

和

→

跃迁处的特征发射光

并且可见光强度随着Eu

离子掺杂浓度的变化而变化。另外Tb

离子浓度对NaYF

∶Eu

晶体结构产生了一定的影响

说明掺杂Tb

离子改变了Eu

离子所处的配位环境

导致红色发光带增强

而这主要源于电偶极子跃迁的贡献。

Abstract

Powdered samples NaYF

∶Eu

and NaYF

∶Eu

are successfully prepared by high temperature solvothermal method. The obtained samples are characterized by X-ray power diffraction(XRD)

field emission scanning electron microscopy (FESEM)

and photoluminescence(PL) spectra. Experiment results revealed that as-prepared NaYF

∶Eu

and NaYF

∶Eu

crystallized in hexagonal phase without cubic phase

and the size was about 80 nm×100 nm (side length×thickness). When the doping concentration of Eu

and Tb

are various

the lattice structure of samples do not change

indicating that the Eu

and Tb

ions are completely dissolved in the NaYF

host lattice by substitution for the Y

. The emission from

→

(595 nm) and

→

(618 nm) of Eu

ions was observed under excitation of 394 nm light from Xe lamp. The visible light intensity changes with the doping ions of Eu

concentration and the influence to crystal structure of Tb

ions concentration have been investigated. These results show that the doping ions of Tb

change the coordination environment of Eu

resulting to stronger red emissions

and electric dipole transition occupied the main contribution.

关键词

Keywords

references

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