Luminescent properties of Cr3+-doped β-Ga2O3 materials synthesised by thermal diffusion method

Abstract

This study reports a simple fabrication process for producing Cr³⁺ doped β-Ga₂O₃ (β-Ga₂O₃:Cr³⁺) phosphor powder with different concentrations (0.2-1.5%) by thermal diffusion method. The X-ray diffraction pattern (XRD) analysis revealed that the β-Ga₂O₃:Cr³⁺ phosphor has a monoclinic structure. Additionally, the Cr³⁺ ions were found to replace the Ga³⁺ ions in the β-Ga₂O₃ lattice.