首页|Microwave-assisted fast synthesis and red-emitting properties of a borotellurate-based phosphor with excellent thermostability

Microwave-assisted fast synthesis and red-emitting properties of a borotellurate-based phosphor with excellent thermostability

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At present,with the increasing application needs of phosphor-converted white light-emitting diode(w-LED),the synthetic efficiency and thermal stability of phosphor become urgent problems.Herein,this research reports a microwave-assisted fast synthesis approach to obtain a Sm3+-activated borotellurate Na2Y2TeO4(BO3)2(NYTB)red phosphor with high crystallinity,excellent thermostability,and low chro-maticity shift.For the NYTB-based phosphor,in contrast to the conventional solid-state synthesis,the microwave-assisted synthesis method involves lower synthesis temperature and shorter processing time.Additionally,the concentration quenching mechanism was determined.The w-LED device pack-aged with the studied phosphor exhibits a near-standard white light with proper CCT and high Ra parameters.

BorotellurateSamariumMicrowave-assisted synthesisRed-emittingThermal stabilityRare earths

Yuefei Xiang、Hong Li、Hongzhi Zhang、Lin Yang、Canyuan Liao、Tongsheng Yang、Junpeng Li、Zewen Guo、Jing Zhu

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Key Laboratory of LCR Materials and Devices of Yunnan Province,Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies,School of Materials and Energy,Yunnan University,Kunming,650091,China

国家自然科学基金国家自然科学基金National Undergraduate Innovation and Entrepreneurship FoundationScientific Research Foundation of Education Department of Yunnan provinceProgram for Excellent Young Talents,Yunnan University

22165031217610342022106730342022Y001

2024

10.1016/j.jre.2023.03.012

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(6)
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