Crystal Site Engineering in Sr<sub>2</sub>LiSiO<sub>4</sub>F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing

Shuai HUANG; Jin-di WANG; Yu YAN; Meng-meng SHANG

doi:10.37188/CJL.20210299

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Crystal Site Engineering in Sr₂LiSiO₄F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing

Cover Story | 更新时间：2021-12-17

- Crystal Site Engineering in Sr₂LiSiO₄F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 12, Pages: 1829-1836(2021)
- 作者机构：
  
  1.山东大学材料科学与工程学院　材料液固结构演变与加工教育部重点实验室，山东　济南　250061
  2.南昌大学　材料科学与工程学院，江西　南昌　330031
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51672265);Natural Science Foundation of Shandong Province(ZR2018JL016);Qilu Young Scholar Program of Shandong University
- DOI：10.37188/CJL.20210299
  CLC： O482.31
- Published：2021-12，
  
  Received：13 September 2021，
  
  Revised：30 September 2021，
扫描看全文
Shuai HUANG, Jin-di WANG, Yu YAN, et al. Crystal Site Engineering in Sr₂LiSiO₄F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing. [J]. Chinese Journal of Luminescence 42(12):1829-1836(2021)
DOI：

Shuai HUANG, Jin-di WANG, Yu YAN, et al. Crystal Site Engineering in Sr₂LiSiO₄F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing. [J]. Chinese Journal of Luminescence 42(12):1829-1836(2021) DOI： 10.37188/CJL.20210299.

摘要

通过高温固相法制备了一系列Eu掺杂的Sr

1.95+

F(0≤

≤0.25)发光材料，并详细研究了所制备Sr

LiSiO

F化合物的晶体结构及相组成。利用Al

-Sr

离子对取代Si

-Li

离子对的晶体位点工程，对Eu

占据的Sr多面体位点进行调控，实现单相Sr

1.95+

1-x

F(0≤

≤0.25)材料中Eu

和Eu

的共存，获得了Sr

1.95+

F∶Eu体系从绿光到红光的发光调谐。通过对Sr

1.95+

-Al

F∶Eu材料中的Eu

和Eu

离子在25~300 ℃范围内温度依赖性光谱的研究发现Eu

和Eu

呈现不同的温度敏感特性。经计算，Sr

1.95+

F∶0.05Eu发光材料的温度传感绝对灵敏度和相对灵敏度可分别达到2.83%·K

-1

与0.66%·K

-1

，进一步证实了所制备发光材料在温度传感方面的应用潜力。

Abstract

Eu-doped Sr

1.95+

F(0≤

≤0.25) phosphors were prepared by solid-state method. The Sr polyhedron sites occupied by Eu

in the Sr

LiSiO

F matrix lattice were adjusted

via

crystal site engineering method which is implemented by replacing Si

-Li

with Al

-Sr

ion pairs. The co-existence of Eu

and Eu

in single-phase Sr

1.95+

F∶0.05Eu(0≤

≤ 0.25) phosphors was achieved

and the luminescence was tuned from green to red light. The temperature-dependent spectra(25-300 ℃) of Eu

and Eu

ions in Sr

1.95+

-Al

F∶0.05Eu were studied. It was found that Eu

and Eu

have different temperature sensitivities. The absolute sensitivity and relative sensitivity of temperature sensing of the Sr

1.95+

-Al

F∶0.05Eu phosphor reach 2.83%·K

-1

and 0.66%·K

-1

respectively

which further confirms the application potential of the prepared phosphors in temperature sensing.

关键词

晶格位点工程混合价态Eu温度传感

Keywords

crystal site engineeringmixed-valent europiumratiometric temperature sensing

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Related Author

Shuai HUANG

Jindi WANG

Yu YAN

Mengmeng SHANG

Related Institution

Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials （Ministry of Education）， School of Material Science and Engineering， Shandong University

College of Materials Science and Engineering， Nanchang University

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⁰

Crystal Site Engineering in Sr2LiSiO4F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing

DOI：10.37188/CJL.20210299

摘要

Abstract

关键词

Keywords

references

Crystal Site Engineering in Sr₂LiSiO₄F Enabling Mixed-valent Europium Toward Ratiometric Temperature Sensing