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人工晶体学报 ›› 2023, Vol. 52 ›› Issue (2): 327-333.

• 研究论文 • 上一篇    下一篇

双钙钛矿结构Rb3GaF6∶Er3+,Yb3+的合成及上转换发光特性研究

李敬远   

  1. 中国人民解放军第一二〇五工厂,北京 100088
  • 收稿日期:2022-12-04 出版日期:2023-02-15 发布日期:2023-03-08
  • 作者简介:李敬远(1988—),男,河北省人,工程师。E-mail:101292130@qq.com
  • 基金资助:
    陆军后勤部项目(CLJ1818)

Synthesis and Up-Conversion Luminescence Characteristics Study of Rb3GaF6∶Er3+,Yb3+ with Double Perovskite Structure

LI Jingyuan   

  1. The 1205 Plant of Chinese People's Liberation Army, Beijing 100088, China
  • Received:2022-12-04 Online:2023-02-15 Published:2023-03-08

摘要: 双钙钛矿结构化合物具有化学稳定性高、声子能量低、易于稀土离子掺杂和多种可调变的晶体学格位等优点,是一种优良的上转换发光基质材料。本文采用高温固相法在600 ℃下合成了双钙钛矿结构Rb3GaF6∶Er3+,Yb3+上转换发光材料,并采用X射线粉末衍射仪(XRD)、场发射扫描电镜(SEM)和荧光光谱仪对其成分、结构和发光特性进行系统表征。在980 nm激发下,制备的样品在521和548/561 nm处产生的绿光发射分别归因于Er3+2H11/2-4I15/24S3/2-4I15/2能级上的电子跃迁,同时在656 nm处产生的红光发射对应于Er3+4F9/2-4I15/2能级上的电子跃迁。此外,本文探究了Rb3GaF6∶Er3+,Yb3+的上转换发光机理。

关键词: 双钙钛矿, Rb3GaF6∶Er3+,Yb3+, 上转换, 发光特性, 稀土掺杂, 高温固相法, 发光机理

Abstract: Double perovskite compounds are an excellent up-conversion host material with high chemical stability, low phonon energy, easy doping of rare earth ions and a variety of tunable crystallographic lattices. In this paper, Rb3GaF6∶Er3+, Yb3+ up-conversion luminescent materials with the double perovskite structure were synthesized by high-temperature solid-phase method at 600 ℃, and the composition, structure and luminescence characteristic were systematically characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (SEM) and fluorescence spectrometer. Under 980 nm excitation, the prepared samples produced green emission at 521 and 548/561 nm attributes to electron transitions on the 2H11/2-4I15/2 and 4S3/2-4I15/2 level of Er3+, respectively, and the red emission at 656 nm corresponding to electron transitions on the 4F9/2-4I15/2 level of Er3+. In addition, the up-conversion luminescence mechanism of Rb3GaF6∶Er3+,Yb3+ was also investigated.

Key words: double perovskite, Rb3GaF6∶Er3+,Yb3+, up-conversion, luminescence characteristic, rare earth doping, high-temperature solid-phase method, luminescence mechanism

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