Local symmetry engineering and Judd–Ofelt decoupling in SrLaInO 4 :Eu 3+ for high-purity red emission toward advanced solid-state lighting

Key Points

• The aim is to enhance red emission in SrLaInO4:Eu3+ through local symmetry engineering and Judd–Ofelt analysis.
• Utilized local symmetry engineering techniques in SrLaInO4:Eu3+
• Conducted Judd–Ofelt analysis to evaluate optical transitions
• Measured red emission quality for solid-state lighting applications
• Achieved high-purity red emission from the 5D0→7F2 transition
• Judd–Ofelt analysis revealed a large Ω2 value
• Enhanced local asymmetry and Eu–O covalency were observed