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JOURNAL OF SYNTHETIC CRYSTALS ›› 2023, Vol. 52 ›› Issue (2): 327-333.

• Research Articles • Previous Articles     Next Articles

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

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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