Optimized Energy Transfer and Enhanced Green Photoluminescence in Tb³⁺/Gd³⁺ Co-Doped BiF₃ Nanoparticles via Controlled Co-Precipitation

Key Points

• The aim is to improve photoluminescence efficiency in Tb³⁺-doped fluoride phosphors using Gd³⁺ co-doping.
• Synthesis of Tb³⁺/Gd³⁺-co-doped BiF₃ nanoparticles via room-temperature controlled co-precipitation.
• Structural analysis to confirm nanoparticles' properties.
• Significant enhancement in photoluminescence quantum efficiency compared to singly doped samples.
• Optimization of energy transfer mechanisms between Tb³⁺ and Gd³⁺ ions.