Preparation of Tm3+ ion-doped BaZrO3 powder and its luminescence performance study

Abstract

A series of Tm3+ ion doped BaZrO3 blue phosphors were synthesized by traditional hydrothermal method. The structure, morphology and luminescence properties of the synthesized materials were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), fourier transform infrared spectrum (FT-IR), size distribution and fluorescence spectrometer, respectively. The results show that the final products existed in a pure phase and with increasing of Tm3+ concentration, the grain size, lattice constants and lattice strain showed a trend of increase. In addition, by changing the supersaturation of the precursor solution, the spherical particle size can be carefully adjusted. When the doping molar fraction of Tm3+ was 5.0%, thebluemovementoftheinfrared absorption peakwasthemost, which was consistent with the theoretical calculations. Finally, based on the unique “probe” characteristics of Eu3+, it was confirmed that leading cause of energy level splitting was the reduction of the local symmetry of the matrix environment and the luminescence decrease should be attributed to the concentration quenching and lattice distortion.