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人工晶体学报 ›› 2022, Vol. 51 ›› Issue (1): 120-125.

• 研究论文 • 上一篇    下一篇

NaY(WO4)2:Sm3+粉末的制备及荧光性能

孟晓燕1, 吴斌2, 刘清1, 王意1, 吴秀平1   

  1. 1.上饶师范学院化学与环境科学学院,上饶 334001;
    2.鄱阳泽浩建材有限公司,上饶 333100
  • 收稿日期:2021-09-13 出版日期:2022-01-15 发布日期:2022-02-09
  • 作者简介:孟晓燕(1978—),女,安徽省人,讲师。E-mail:mengxiaoyan_bin@163.com
  • 基金资助:
    江西省自然科学基金(20212BAB213029);上饶师范学院校级自选课题(202029,202131)

Preparation and Luminescent Properties of NaY(WO4)2:Sm3+ Powders

MENG Xiaoyan1, WU Bin2, LIU Qing1, WANG Yi1, WU Xiuping1   

  1. 1. School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao 334001, China;
    2. Poyang Zehao Building Materials Limited Company, Shangrao 333100, China
  • Received:2021-09-13 Online:2022-01-15 Published:2022-02-09

摘要: 以柠檬酸三钠为结合剂,采用水热法结合高温烧结两步法制备了一系列NaY1-x(WO4)2:xSm3+(x=0、0.005、0.010、0.015、0.020、0.025、0.030)粉末。通过X射线衍射(XRD)、扫描电镜(SEM)、红外光谱(FT-IR)和荧光性能(PL)对粉末的相结构、形貌、成分以及发光性能进行了表征。研究结果表明,所合成粉末为NaY(WO4)2的纯相,属四方晶系白钨矿结构,其形貌为3D花形。在405 nm的光激发下,NaY(WO4)2:Sm3+粉末在600 nm处具有最高的荧光强度,对应于Sm3+4G5/26H7/2磁偶极跃迁,观察到橙红光发射,且Sm3+最佳掺杂摩尔分数为0.015时,粉末显示出最强的荧光发射强度。

关键词: NaY(WO4)2, Sm3+掺杂, 柠檬酸三钠, 水热法, 高温烧结, 3D花形, 橙红色, 荧光粉, 荧光性能

Abstract: A series of self-assembled 3D flower-like NaY1-x(WO4)2:xSm3+(x=0, 0.005, 0.010, 0.015, 0.020, 0.025, 0.030) powders were prepared by hydrothermal method and high temperature sintering, with trisodium citrate as the anchoring agent. The phase structure, morphology, composition and luminescence properties were characterized by X-ray powder diffraction(XRD), scanning electron microscopy(SEM), infrared spectrum(FT-IR) and photoluminescence spectroscopy (PL), respectively. The results show that the synthesized samples are pure NaY(WO4)2 with tetragoonal scheelite structure. NaY(WO4)2:Sm3+ powders can be excited by a wavelength of 405 nm and exhibit a strong orange-red emission at 600 nm, corresponding to the 4G5/26H7/2 magnetic dipole transition of Sm3+. The optimum doping molar fraction of Sm3+ is determined to be of 0.015 based on the maximum intensity of fluorescence emission.

Key words: NaY(WO4)2, Sm3+doping, trisodium citrate, hydrothermal method, high temperature sintering, 3D flower shape, orange-red, phosphor powder, luminescent property

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