化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (1) : 103-107. DOI: 10.19817/j.cnki.issn1006-3536.2022.01.021

新材料与新技术

水热法制备NaY(WO₄)₂:Eu³⁺荧光粉及其上转换发光性能研究

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Hydrothermal synthesis and upconversion luminescence property of NaY(WO₄)₂:Eu³⁺ phosphor

Liu Yongfu, Shi Zhongxiang, Wang Jing, Shi Jun

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Received		Published
2020-09-27		2022-01-20
Issue Date	Revised Date
2022-02-08	2020-09-27

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摘要

采用水热法合成出NaY(WO₄)₂:Eu³⁺荧光粉。研究了水热反应时间对样品晶体结构、形貌及上转换发光性能的影响。结果表明:水热反应6h后所得样品均属四方相,且掺入的Eu³⁺进入到基质NaY(WO₄)₂晶格中,并占据Y³⁺的格位。添加聚乙二醇(PEG-2000)作为表面活性剂,可得到形貌统一且分散性良好的微米针状球。利用790nm近红外光激发样品,获得了595nm橙光和616nm红光发射峰,其中橙光发射来自Eu³⁺的 ⁵D₀→⁷F₁跃迁,红光由Eu³⁺的 ⁵D₀→⁷F₂跃迁产生。

Abstract

Eu³⁺ doped NaY(WO₄)₂ phosphors were prepared via hydrothermal process.The effect of hydrothermal reaction time on the crystal structure,morphology and upconversion luminescence properties were investigated.Analysis results showed that the synthesized samples were tetragonal phase NaY(WO₄)₂ after the hydrothermal reaction reached 6h,and Eu³⁺ were successfully introduced into the lattice and replaced Y³⁺ site.The micrometer-sized needle spheres with uniform morphology and excellent dispersion by adding polyethylene glycol (PEG-2000) as surfactant.Under 790nm excitation NaY(WO₄)₂:Eu³⁺ can observed 595nm orange and 616nm red emission peak.Orange emitting lights were from the transition of ⁵D₀→⁷F₁ of Eu³⁺,red emitting lights resulted from the energy level transition of ⁵D₀→⁷F₂ of Eu³⁺.

关键词

上转换发光 / NaY(WO₄)₂:Eu³⁺ / 聚乙二醇 / 水热时间

Key words

upconversion luminescence / NaY(WO₄)₂:Eu³⁺ / polyethylene glycol / hydrothermal time

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水热法制备NaY(WO₄)₂:Eu³⁺荧光粉及其上转换发光性能研究[J]. 化工新型材料, 2022, 50(1): 103-107 DOI:10.19817/j.cnki.issn1006-3536.2022.01.021

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