Enhanced Deep-Blue Emission and Quantum Yield of Ca₀.₉₉₅YGaO₄:0.5%Bi³⁺ via Lithium-Based Flux Additives

Key Points

• This work aims to enhance the photoluminescence quantum yield of Bi³⁺-doped CaYGaO₄ phosphors using lithium-based fluxes.
• Synthesis of Bi³⁺-doped CaYGaO₄ through solid-state reaction.
• Optimization of phosphors using various lithium-based flux additives.
• Comparative studies on the effects of fluxes on emission properties.
• Significant enhancement in the blue photoluminescence quantum yield observed.
• Li-based flux additives contributed to improved emission characteristics of the phosphors.