化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (9) : 84-88. DOI: 10.19817/j.cnki.issn1006-3536.2022.09.017

新材料与新技术

Sm³⁺掺杂Sr₂YSbO₆红色荧光粉的制备及发光性能研究

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Preparation and luminous performance analysis of Sm³⁺ doped Sr₂YSbO₆ red phosphor

Xie Lanchi, Luo Xin, Yang Weibin, Yang Yin, Xu Feixiang, Xiong Feibing

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文章历史 +

Received		Published
2021-05-31		2022-09-20
Issue Date	Revised Date
2022-09-27	2021-05-31

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摘要

采用高温固相法合成新型Sr₂YSbO₆∶Sm³⁺红色荧光粉。使用X射线衍射仪(XRD)、荧光粉激发光谱与热猝灭分析系统、稳态-瞬态光谱仪等手段对样品的物相结构、光致发光光谱、荧光淬灭等性能进行分析。结果表明:合成的样品不含杂质相,在405nm光激发下可以发射出色坐标为(0.598,0.399)的红光;Sm³⁺最佳掺杂浓度为2.0%;Sm³⁺之间的交换相互作用是导致Sr₂YSbO₆∶Sm³⁺样品荧光浓度猝灭发生的原因;Sr₂Y_0.980SbO₆∶0.020Sm³⁺样品的荧光寿命为1.37ms,在293～480K之间具有比较好的热稳定性。因此,Sr₂YSbO₆∶Sm³⁺红色荧光粉有望作为白光LED用红色荧光粉。

Abstract

Sr₂YSbO₆∶Sm³⁺ red phosphor was synthesized by high temperature solid state method.The crystal structure,luminescent properties,fluorescence concentration quenching and thermal properties of the sample were analyzed.The results shown that the synthesized sample was pure phase and emited red light with color coordinates of (0.598,0.399).The optimal doping concentration of Sm³⁺ was about 2.0%.The reason for fluorescence concentration quenching of Sr₂YSbO₆∶Sm³⁺ was attributed to the exchange interaction between Sm³⁺.The fluorescence lifetime of the sample with optimal doping concentration was about 1.37ms,and it had relatively good thermal stability in the range of 293～480K.The above results indicated that Sr₂YSbO₆∶Sm³⁺ was expected to be used as red phosphors for white LED.

关键词

Sr₂YSbO₆∶Sm³⁺ / 红色荧光粉 / 荧光粉性能 / 白光LED

Key words

Sr₂YSbO₆∶Sm³⁺ / red phosphor / phosphor property / white LED

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Sm³⁺掺杂Sr₂YSbO₆红色荧光粉的制备及发光性能研究[J]. 化工新型材料, 2022, 50(9): 84-88 DOI:10.19817/j.cnki.issn1006-3536.2022.09.017

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