Yb3+/Er3+共掺(MLaFn)x(M=0,K;n=3,4;x=1,1.5)纳米材料的控制合成及其上转换发光性质

刘媛媛; 德格吉呼; 王仙

doi:10.3788/fgxb20194002.0143

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Yb³⁺/Er³⁺共掺(MLaF_n)_x(M=0,K;n=3,4;x=1,1.5)纳米材料的控制合成及其上转换发光性质

材料合成及性能 | 更新时间：2020-08-12

- Yb³⁺/Er³⁺共掺(MLaF_n)_x(M=0,K;n=3,4;x=1,1.5)纳米材料的控制合成及其上转换发光性质
- Controllable Synthesis and Upconversion Luminescence Properties of Yb³⁺/Er³⁺ Codoped (MLaF_n)_x (M=0,K;n=3,4;x=1,1.5) of Nanomaterials
- 发光学报 2019年40卷第2期页码：143-152
- 作者机构：
  
  1. 内蒙古师范大学化学与环境科学学院, 内蒙古呼和浩特 010022
  2. 内蒙古师范大学内蒙古功能材料物理与化学重点实验室, 内蒙古呼和浩特 010022
  3. 吉林大学集成光电子学国家重点联合实验室, 吉林长春 130012
- 作者简介：
- 基金信息：
  
  内蒙古自治区科技创新引导项目基金（000-21090179）资助项目
- DOI：10.3788/fgxb20194002.0143
  中图分类号： 0482.31
- 收稿日期：2018-08-14，
  
  修回日期：2018-09-19，
  
  网络出版日期：2018-09-26，
  
  纸质出版日期：2019-02-05
- 稿件说明：
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刘媛媛, 德格吉呼, 王仙. Yb3+/Er3+共掺(MLaFn)x(M=0,K;n=3,4;x=1,1.5)纳米材料的控制合成及其上转换发光性质[J]. 发光学报, 2019,40(2): 143-152

LIU Yuan-yuan, DE Ge-ji-hu, WANG Xian. Controllable Synthesis and Upconversion Luminescence Properties of Yb3+/Er3+ Codoped (MLaFn)x (M=0,K;n=3,4;x=1,1.5) of Nanomaterials[J]. Chinese Journal of Luminescence, 2019,40(2): 143-152
刘媛媛, 德格吉呼, 王仙. Yb3+/Er3+共掺(MLaFn)x(M=0,K;n=3,4;x=1,1.5)纳米材料的控制合成及其上转换发光性质[J]. 发光学报, 2019,40(2): 143-152 DOI： 10.3788/fgxb20194002.0143.

LIU Yuan-yuan, DE Ge-ji-hu, WANG Xian. Controllable Synthesis and Upconversion Luminescence Properties of Yb3+/Er3+ Codoped (MLaFn)x (M=0,K;n=3,4;x=1,1.5) of Nanomaterials[J]. Chinese Journal of Luminescence, 2019,40(2): 143-152 DOI： 10.3788/fgxb20194002.0143.

摘要

采用水热与溶剂热结合的方法，在乙二醇-正己醇体系中，通过调节KF与

（

=La，Yb，Er）的量比、反应温度和反应时间实现了由LaF

（六角相）到KLaF

（立方相、六角相）晶型的控制合成。借助透射电子显微镜（TEM）和X射线粉末衍射（XRD）对样品的结构和微观形貌进行表征。结果表明，当KF/

比例为2.25时，制备的样品为片状的六角相LaF

纳米颗粒；当KF/

比例为3.00时，得到具有近似球形的立方相KLaF

纳米颗粒；当KF/

比例为4.25时，得到了六角相（KLaF

）

1.5

纳米颗粒。上转换发射光谱显示:所有的样品在近红外光（980 nm）激发下，均有3个明显的发射峰，在522 nm、544 nm处分别对应于Er

的

3/2

，

11/2

15/2

能级跃迁，655 nm处属于Er

的

9/2

15/2

能级跃迁。

Abstract

Upconversion nanocrystals(UPCNs) from hexagonal phase LaF

() to cubic phase KLaF

() or hexagonal phase(KLaF

)

1.5

() were prepared by simply tuning the molar ratio of KF to

(

=La

Er)

reaction temperature and reaction time in ethlene glycol(EG) and 1-hexanol (HA) mixed solvents

via

a facile hydro/solvothermal method. The -LaF

to -KLaF

or -(KLaF

)

1.5

transformation process was studied by X-ray diffraction(XRD)

fluorescence spectrophotometer with an external 980 nm single-wavelength diode laser and transmission electron microscopy(TEM) techniques. The results indicate that the hexagonal phase of LaF

nanosheet was synthesized when the ratio of KF/

was 2.25. With the ratio of KF/

increased to 3.00

the approximate spherical cubic phase of KLaF

was obtained. The cubic phase of KLaF

completely transforms into the hexagonal phase of (KLaF

)

1.5

when the ratio of KF/

was 4.25. The red and green emission are corresponding to the transitions

3/2

11/2

15/2

(Green) at 522 nm and 544 nm

9/2

15/2

(Red) at 655 nm of Er

ions

respectively.

关键词

Keywords

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