Synthesis and Spectral Properties of NaYF4: Yb3+, Er3+ Nanoparticles <italic style="font-style: italic">via</italic> Thermolysis Method

Zi-juan LI; Xue AN; Hao NIU; Jing-hui YAN; Hong-zhou LIAN

doi:10.37188/fgxb20204109.1128

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Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method

Synthesis and Properties of Materials | 更新时间：2020-09-10

- Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method
- Chinese Journal of Luminescence Vol. 41, Issue 9, Pages: 1128-1136(2020)
- 作者机构：
  
  1.长春理工大学化学与环境工程学院, 吉林长春 130022
  2.中国科学院长春应用化学研究所稀土资源利用国家重点实验室, 吉林长春 130022
- 作者简介：
- 基金信息：
  
  Science and Technology Department Major Science and Technology Bidding Project of Ji
- DOI：10.37188/fgxb20204109.1128
  CLC： O482.31
- Received：25 June 2020，
  
  Accepted：02 August 2020，
  
  Published：2020-09
- 稿件说明：
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Zi-juan LI, Xue AN, Hao NIU, et al. Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method[J]. Chinese journal of luminescence, 2020, 41(9): 1128-1136.
DOI：

Zi-juan LI, Xue AN, Hao NIU, et al. Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method[J]. Chinese journal of luminescence, 2020, 41(9): 1128-1136. DOI： 10.37188/fgxb20204109.1128.

摘要

以稀土氯化物为反应前驱体，采用高温溶剂法合成单分散、形貌和尺寸均一的NaYF

:20% Yb

，2% Er

上转换发光纳米粒子。探讨了反应时间、温度以及油酸加入量对产物结构和光学性能的影响。通过XRD、SEM、EDS、XPS及光致发光等对产物性能进行表征。结果表明，样品与标准卡片匹配良好，为纯相，属六方晶系；所合成的纳米粒子形貌为六角盘状，对角线长度约为77 nm，厚度约为54 nm；在980 nm激光激发下，所合成纳米粒子在523 nm和542 nm左右的绿光区以及峰值位于656 nm左右的红光区均可观察到Er

的特征发射峰，分别归属于

11/2

、

3/2

及

9/2

能级到

15/2

能级之间的跃迁，不论是红光还是绿光吸收均为双光子过程。

Abstract

Mono-dispersed up-converting luminescent nanoparticles of NaYF

:20%Yb

2%Er

with uniform size and morphology were prepared

via

the thermolysis method using rare earth chloride as the precursor. The crystal structure

morphology

and upconversion properties of the samples were characterized by X-ray diffraction(XRD)

scanning electron microscope(SEM)

energy dispersive spectrometer(EDS)

X-ray photoelectron spectroscopy(XPS) and photoluminescence spectrum. The results show that the samples belong to the hexagonal system(space group:

6) and therefore verifies the phase purity of the samples. The sample exhibits the morphology of hexagonal disc with a diagonal length of about 77 nm and a thickness of about 54 nm. Under the excitation of 980 nm laser

the samples exhibit characteristic emission of Er

peaked at 523 nm(green)

542 nm(green) and 656 nm(red)

which can be attributed to the transition from the level of

11/2

3/2

and

9/2

to the level of

15/2

respectively. Both absorption of green and red were due to two-photon processes.

关键词

Keywords

references

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⁰

Synthesis and Spectral Properties of NaYF4: Yb3+, Er3+ Nanoparticles via Thermolysis Method

DOI：10.37188/fgxb20204109.1128

摘要

Abstract

关键词

Keywords

references

Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method