Thermally controlled Er3+-Ho3+ energy transfer in NaYGeO4 olivine phosphor for enhanced NIR-II luminescence and sensitive thermometry

Key Points

• Enhanced NIR-II luminescence achieved through efficient energy transfer mechanisms.
• Key evidence shows 25% increase in luminescence with optimized thermal conditions.
• Assessment using energy transfer theory highlights olivine phosphor as a viable material.
• Findings suggest applications in both luminescence technologies and precision thermometry.