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Li+掺杂YPO4:Dy3+荧光粉的诱导相变与发光性能优化

ZHAN Junwei RUAN Yongqi CHEN Zhiqiang WEN Lei PENG Siyan YANG Liusai

人工晶体学报2025，Vol.54Issue(12)：2146-2155,10.

人工晶体学报2025，Vol.54Issue(12)：2146-2155,10.DOI:10.16553/j.cnki.issn1000-985x.2025.0179

Li+掺杂YPO4:Dy3+荧光粉的诱导相变与发光性能优化

Induced Phase Transformation and Luminescence Performance Optimization of Li+ Doped YPO4:Dy3+ Phosphors

ZHAN Junwei ¹RUAN Yongqi ²CHEN Zhiqiang ²WEN Lei ²PENG Siyan ³YANG Liusai³

作者信息

1. School of Chemistry and Environmental Science,Shangrao Normal University,Shangrao 334001,China||Key Laboratory of Preparation and Application of Black Talc Functional Materials,Jiangxi Provincial Department of Education,Shangrao 334001,China||School of Environmental and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China
2. School of Chemistry and Environmental Science,Shangrao Normal University,Shangrao 334001,China
3. School of Chemistry and Environmental Science,Shangrao Normal University,Shangrao 334001,China||Key Laboratory of Preparation and Application of Black Talc Functional Materials,Jiangxi Provincial Department of Education,Shangrao 334001,China
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摘要

Abstract

A series of YPO4:Dy3+phosphors with different Li+doping concentrations were synthesized via a hydrothermal method combined with high-temperature calcination.The effects of Li+co-doping on the structure,morphology and luminescence properties of YPO4:Dy3+phosphors were systematically investigated.X-ray diffraction(XRD)results indicate that Li+doping promotes the phase transition of YPO4-0.8H2O from hexagonal to tetragonal phase.Moreover,Li+could either substitute Y3+at lattice sites or occupy interstitial positions.Scanning electron microscopy(SEM)results show that with the increase of Li+doping concentration,the morphology of the phosphor changes from hexagonal prism to spherical particles,and the average particle size gradually decreases.Fluorescence spectroscopy analysis reveals that appropriate Li+doping can significantly enhance the luminescence intensity of YPO4:Dy3+phosphors.When the Li+doping amount is 5％,the luminescence intensity reaches the maximum value,which is approximately 2.3 times that of the undoped sample.Meanwhile,Li+doping can also improve the thermal stability of the phosphor.With the increase of Li+doping amount(x=1％～7％),the CIE chromaticity coordinates of YPO4:5％Dy3+,xLi+phosphors change gradually from(0.233,0.283)to(0.238,0.289).The research results demonstrate that Li+co-doping is an effective approach to regulate the luminescence properties of YPO4:Dy3+phosphors,and provides theoretical basis and experimental foundation for their application in the field of white light-emitting diodes(LEDs).

关键词

磷酸钇/碱金属/Dy3+掺杂/相变调控/发光性能

Key words

yttrium phosphate/alkali metal/Dy3+ doping/phase transition regulation/luminescence performance

分类

化学化工

引用本文复制引用

ZHAN Junwei,RUAN Yongqi,CHEN Zhiqiang,WEN Lei,PENG Siyan,YANG Liusai..Li+掺杂YPO4:Dy3+荧光粉的诱导相变与发光性能优化[J].人工晶体学报,2025,54(12):2146-2155,10.

基金项目

江西省自然科学基金(20212BAB213029) （20212BAB213029）

大学生省级创新训练项目(S202510416007) （S202510416007）

上饶师范学院校级课题(SRYY02,SRYY04) （SRYY02,SRYY04）

上饶市科技项目(2025D011) （2025D011）

人工晶体学报

OA北大核心

ISSN：1000-985X

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