上转换材料LiY(MoO4)2:Yb3+/Er3+的光学特性以及温度传感特性的研究

黄穗超; 胡正发; 张伟

doi:10.12052/gdutxb.180064

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上转换材料LiY(MoO₄)₂:Yb³⁺/Er³⁺的光学特性以及温度传感特性的研究

综合研究 | 更新时间：2026-05-27

- 上转换材料LiY(MoO₄)₂:Yb³⁺/Er³⁺的光学特性以及温度传感特性的研究
- The Temperature-Sensor and Optical Properties of Up-Conversion Phosphor LiY(MoO₄)₂:Yb³⁺/Er³⁺
- 广东工业大学学报 2019年36卷第1期页码：75-80
- 作者机构：
  
  1. 广东工业大学　物理与光电工程学院,广东,广州,510006
  2. 东源广工大现代产业协同创新研究院,广东,河源,517000
- 作者简介：
  
  黄穗超(1990-)，男，硕士研究生，主要研究方向为上转换发光材料
  胡正发(1972-)，男，副研究员，主要研究方向为热致、电致发光材料. E-mail：zhfhu@gdut.edu.cn
- 基金信息：
  
  国家自然科学基金资助项目(21271048);广东省重大科技专项项目(2011A080801015)
- DOI：10.12052/gdutxb.180064
  中图分类号： O482.31
- 网络首发：2019-01-25，
  
  纸质出版：2019
- 稿件说明：
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黄穗超, 胡正发, 张伟. 上转换材料LiY(MoO₄)₂:Yb³⁺/Er³⁺的光学特性以及温度传感特性的研究[J]. 广东工业大学学报, 2019, 36(1): 75-80. DOI: 10.12052/gdutxb.180064.

Huang Sui-chao, Hu Zheng-fa, Zhang Wei. The Temperature-Sensor and Optical Properties of Up-Conversion Phosphor LiY(MoO₄)₂:Yb³⁺/Er³⁺[J]. 2019, 36(1): 75-80. DOI: 10.12052/gdutxb.180064.
黄穗超, 胡正发, 张伟. 上转换材料LiY(MoO₄)₂:Yb³⁺/Er³⁺的光学特性以及温度传感特性的研究[J]. 广东工业大学学报, 2019, 36(1): 75-80. DOI: 10.12052/gdutxb.180064. DOI：

Huang Sui-chao, Hu Zheng-fa, Zhang Wei. The Temperature-Sensor and Optical Properties of Up-Conversion Phosphor LiY(MoO₄)₂:Yb³⁺/Er³⁺[J]. 2019, 36(1): 75-80. DOI: 10.12052/gdutxb.180064. DOI：

摘要

采用中温固相反应法合成了发光材料LiY(MoO

)

:Yb

/Er

材料具有明显的上转换发光特性. 通过X射线衍射仪、荧光光谱对荧光粉的晶体结构以及发光学特性进行了研究. 在980 nm激光的激发下

LiY(MoO

)

:Yb

/Er

在500~575 nm波长范围内出现很强的绿色发射带

主要是源自Er

离子

11/2

3/2

→

15/2

的能级辐射跃迁. 研究发现其在不同功率的激发下能实现光色调控. 在298~513 K温度范围内

通过测量其在

11/2(1)

→

15/2

和

3/2(1)

→

15/2

处的荧光强度比

数据拟合图像表明

11/2(1)

3/2(1)

热耦合能级上的布居数遵循玻尔兹曼分布

相对灵敏度在298 K达到最大值1.785% K

–1

绝对灵敏度在约473 K达到最大值263.20×10

–4

–1

并且热能级

11/2(1)

3/2(1)

之间的能隙Δ

为756.71±27.48 cm

–1

. 基于以上分析

LiY(MoO

)

:Yb

/Er

荧光粉在温度传感器上具有很好的前景.

Abstract

The phosphors LiY(MoO

)

:Yb

/Er

with remarkable up-conversion emission character were synthesized by means of high-temperature solid state reaction method. Experiments were carried out to determine the crystal structure

up-conversion emission optical properties and temperature sensing of the phosphors. Under 980 nm laser

the LiY(MoO

)

:Yb

/Er

exhibits an intensive green emission bands which can be assigned to

11/2

3/2

→

15/2

transitions. The temperature sensing properties were studied by measuring the fluorescence intensity ratio of the

11/2(1)

and

3/2(1)

emitting energy levels in the temperature range from 298 to 513 K. The maximum relative sensitivity was 1.785% K

-1

at 298 K and the maximum absolute sensitivity reach to 263.20×10

−4

−1

at 473 K

and the calculated energy gap Δ

between

11/2(1)

and

3/2(1)

levels was 756.71±27.48 cm

−1

suggesting that the present phosphor is a suitable candidate for optical temperature sensors.

关键词

Keywords

references

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