Controllable crystal form transformation and temperature sensing properties studies of K3Sc0.5Lu0.5F6: Ho3+, Yb3+ with cryolite structure

被引：1

作者：

Shuai, Pengfei ^{[1
]}

Guo, Qingfeng ^{[2
]}

Liao, Libing ^{[1
,3
]}

Yan, Zhaoliang ^{[1
]}

Su, Ke ^{[1
]}

Wang, Yujia ^{[1
]}

Mei, Lefu ^{[1
]}

机构：

[1] China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol, Natl Lab Mineral Mat, Beijing, Peoples R China

[2] China Univ Geosci, Jewelry & Mineral Mat Lab, Sch Gemol, Expt Teaching Demonstrat Ctr, Beijing, Peoples R China

[3] China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol, Natl Lab Mineral Mat, Beijing 100083, Peoples R China

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2023年 / 54卷 / 06期

基金：

中国国家自然科学基金;

关键词：

cryolite; KSLF; phase change; temperature sensing; up-conversion luminescence; UP-CONVERSION LUMINESCENCE; PHOTOLUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; PHASE-TRANSITION; PHOSPHORS; NANOCRYSTALS; MORPHOLOGY; EVOLUTION; GROWTH;

D O I：

10.1002/jrs.6525

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this work, a method for controllable regulation of crystal form was proposed for the first time and the effects of different crystal forms on the up-conversion luminescence properties of Ho3+, Yb3+ co-doped K3Sc0.5Lu0.5F6 (KSLF) phosphors was explored. KSLF:Ho3+, Yb3+ phosphors were synthesized by the high temperature solid-state reaction method, and X-ray diffraction (XRD) results illustrate that the compounds can obtain monoclinic phase and cubic phase at different synthesis temperatures. In addition, according to the power-dependent up-conversion luminescence (UCL) intensity, the UCL mechanism and the electronic transition process are discussed. Simultaneously, the temperature sensing behavior of the best samples with different crystal forms at different temperatures was studied by fluorescence intensity ratio technique. All the results show that KSLF:Ho3+, Yb3+ phosphors show great application potential in the field of temperature sensing, and the preparation of KSLF:Ho3+, Yb3+ in different crystal forms can provide a reference value for crystal design and growth.

引用

页码：651 / 661

页数：11

共 75 条

[71] A ratiometric optical thermometer with multi-color emission and high sensitivity based on double perovskite LaMg0.402Nb0.598O3: Pr3+ thermochromic phosphors [J].