期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 9, 期 5, 页码 9523-9530出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2020.06.056
关键词
Phosphors; Rare earth; Nanocomposite; Luminescent materials
资金
- Science and Technology Major Projects of Guangxi [AA19254022]
- Project of Guangxi Natural Science Foundation [2017GXNSFAA198289, 2018GXNS-FAA294001]
- Major Program of Guangxi [AB18126008]
- Chongzuo Science and Technology Project [FA2018002, FA2019003]
- National Natural Science Foundation of China [51973099]
- Taishan Scholar Program of Shandong Province [tsqn201812055]
A series of Eu3+ doped Y2O3 nanophosphors have been synthesized via an ultra-fast ultrasonic-microwave method followed by thermal annealing. The emission of Y2O3:Eu3+ nanophosphors depends tremendously on the concentration of Eu3+ ions and maximum emission intensity is achieved at 612 nm (red luminescence) with a doping concentration of 3?mol%. Moreover, the Y2O3:Eu3+ nanophosphors in this work have much higher photoluminescence lifetime (1.570 ms) and quantum efficiency (80.88%) than that synthesized by other methods. The results of chromaticity coordinates indicate that the Y2O3:Eu3+ as red-emitting phosphor is promising candidate for white light-emitting diodes (LEDs). (C) 2020 The Authors. Published by Elsevier B.V.
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