高温溶剂热分解法合成NaYF4:Yb3+, Er3+纳米粒子及其光谱特性

李子娟; 安雪; 牛昊; 闫景辉; 连洪洲

doi:10.37188/fgxb20204109.1128

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高温溶剂热分解法合成NaYF₄:Yb³⁺, Er³⁺纳米粒子及其光谱特性

材料合成及性能 | 更新时间：2020-09-10

- 高温溶剂热分解法合成NaYF₄:Yb³⁺, Er³⁺纳米粒子及其光谱特性
- Synthesis and Spectral Properties of NaYF₄: Yb³⁺, Er³⁺ Nanoparticles via Thermolysis Method
- 发光学报 2020年41卷第9期页码：1128-1136
- 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：
  
  [ "李子娟(1994-), 女, 吉林松原人, 硕士, 2019年于长春理工大学获得硕士学位, 主要从事稀土发光材料与性能方面的研究。E-mail:1774090348@qq.com" ]
  [ "闫景辉(1963-), 男, 吉林农安县人, 博士, 教授, 2007年于长春理工大学获得博士学位, 主要从事纳米材料及其功能化方面的研究。E-mail:yjh@cust.edu.cn" ]
  [ "连洪洲(1976-), 男, 山东荣成人, 博士, 2005年于中国科学院长春应用化学研究所获得博士学位, 主要从事稀土发光材料的研究。E-mail:hzlian@ciac.ac.cn" ]
- 基金信息：
  
  吉林省科技厅重大科技招标专项(20150203013YY);吉林省科技厅科技支撑计划重点项目(20120223);国家自然科学基金(51672266)
- DOI：10.37188/fgxb20204109.1128
  中图分类号：
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李子娟, 安雪, 牛昊, 等. 高温溶剂热分解法合成NaYF₄:Yb³⁺, Er³⁺纳米粒子及其光谱特性[J]. 发光学报, 2020,41(9):1128-1136.

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.
李子娟, 安雪, 牛昊, 等. 高温溶剂热分解法合成NaYF₄:Yb³⁺, Er³⁺纳米粒子及其光谱特性[J]. 发光学报, 2020,41(9):1128-1136. DOI： 10.37188/fgxb20204109.1128.

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,4,:20% Yb,3+,，2% Er,3+,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,3+,的特征发射峰，分别归属于,2,H,11/2,、,4,S,3/2,及,4,F,9/2,能级到,4,I,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,4,:20%Yb,3+, 2%Er,3+, 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:,P,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,3+, peaked at 523 nm(green), 542 nm(green) and 656 nm(red), which can be attributed to the transition from the level of ,2,H,11/2,4,S,3/2, and ,4,F,9/2, to the level of ,4,I,15/2, respectively. Both absorption of green and red were due to two-photon processes.

关键词

高温溶剂热分解法NaYF4:Yb3+ Er3+纳米粒子上转换发光单分散

Keywords

thermolysis methodNaYF4:Yb3+ Er3+nanoparticlesup-conversion luminescencemonodisper

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