Preparation and Luminescence Properties of Octahedral CeO2∶Er3+ Nanophosphor

ZHANG Hui-min; CONG Yan; TONG Yao; YANG Yang; WANG Yue; REN Bo-yu; DONG Bin

doi:10.3788/fgxb20204104.0386

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Preparation and Luminescence Properties of Octahedral CeO₂∶Er³⁺ Nanophosphor

Synthesis and Properties of Materials | 更新时间：2020-08-12

- Preparation and Luminescence Properties of Octahedral CeO₂∶Er³⁺ Nanophosphor
- Chinese Journal of Luminescence Vol. 41, Issue 4, Pages: 386-391(2020)
- 作者机构：
  
  1. 大连民族大学物理与材料工程学院, 国家民委新能源与稀土资源利用重点实验室, 辽宁省光敏材料与器件重点实验室,辽宁大连,116600
  2. 中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20204104.0386
  CLC： O614.23+2;O614.43+2
- Published：5 April 2020，
  
  Published Online：2 March 2020，
  
  Received：19 January 2020，
  
  Revised：23 February 2020，
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张慧敏, 丛妍, 佟尧等. 八面体结构纳米CeO2∶Er3+的合成及发光性质[J]. 发光学报, 2020,41(4): 386-391

ZHANG Hui-min, CONG Yan, TONG Yao etc. Preparation and Luminescence Properties of Octahedral CeO2∶Er3+ Nanophosphor[J]. Chinese Journal of Luminescence, 2020,41(4): 386-391
张慧敏, 丛妍, 佟尧等. 八面体结构纳米CeO2∶Er3+的合成及发光性质[J]. 发光学报, 2020,41(4): 386-391 DOI： 10.3788/fgxb20204104.0386.

ZHANG Hui-min, CONG Yan, TONG Yao etc. Preparation and Luminescence Properties of Octahedral CeO2∶Er3+ Nanophosphor[J]. Chinese Journal of Luminescence, 2020,41(4): 386-391 DOI： 10.3788/fgxb20204104.0386.

摘要

采用水热合成法制备了八面体结构纳米CeO

∶Er

，并研究了稀土Er

离子掺杂对CeO

纳米晶的结构以及发光特性的影响。所合成的CeO

纳米晶具有八面体结构，结晶完好，粒度均匀。XRD和拉曼光谱测试结果表明所制备的CeO

纳米晶为面心立方萤石结构，稀土Er

离子的掺杂在基质晶格中产生了氧空位缺陷，并产生了晶格畸变。在980 nm激光激发下产生了稀土Er

离子绿色（

11/2

，

3/2

15/2

）、红色（

9/2

15/2

）和近红外（

11/2

，

13/2

15/2

）发光。随着稀土Er

离子掺杂浓度的变化，样品的发光光谱在可见光和近红外光范围产生了不同的猝灭浓度，这是由于掺杂浓度变化对Er

-Er

之间的交叉驰豫过程产生了影响，Er

的能级布居变化引起了发光特性的改变。

Abstract

Octahedral CeO

∶Er

nanophosphors with uniform crystallinity and fine crystalline were prepared using hydrothermal method. The structural and emission properties were investigated. The XRD and Raman spectra indicated that the as-prepared CeO

∶Er

samples were cubic fluorite structure of CeO

phase

and the oxygen vacancies were produced due to the substitution of Er

for Ce

. Green (

11/2

3/2

15/2

)

red (

9/2

15/2

) and NIR (

11/2

13/2

15/2

) emissions under 980 nm laser diode excitation were also investigated

and they were strong affected by the doping concentration of Er

. Different quenching concentrations are observed in the visible and NIR emission spectra

which is due to the alteration of populating channels in the cross relaxation processes of Er

关键词

CeO2∶Er3+纳米晶水热合成法发光

Keywords

CeO2∶Er3+nanophosphorhydrothermal methodluminescence

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