Revolutionary Color Converter for Ultra-High Luminescence in Laser-Driven White Lighting Using Reflective Sapphire-Alumina Technology

Researchers from Sun Yat-Sen University have introduced a new reflective color converter, termed S@PiGF@A, which significantly enhances laser-driven white lighting. Achieving a luminous flux of 6749 lm at 47.70 W/mm²—2.44 times higher than traditional PiGF@A converters—the S@PiGF@A benefits from a thermocompression bonding method that incorporates a sapphire substrate to bolster heat dissipation. This innovative design mitigates thermal quenching and extends luminescence performance, positioning the S@PiGF@A as a promising candidate for high-brightness laser applications in areas like automotive headlights and projection displays. The findings, published in the Journal of Advanced Ceramics, pave the way for further advancements in laser lighting technology.