• • RTA achieves heating rates up to 55 °C s−1 and sintering in ~10 s, reducing energy consumption to 4.3% of conventional methods, which directly lowers manufacturing costs for high-power laser lighting.
• • Sr0.8Ca0.2AlSiN3:Eu2+ PiGF via RTA exhibits internal quantum efficiency of 91.2% (vs. 82.8% conventional) and thermal stability of 90.4% at 200 °C, mitigating phosphor degradation that plagues nitride-based converters.
• • Under 455 nm blue laser at 27 W mm−2, the red-emitting PiGF produces 2379 lm and 140 lm W−1, surpassing previously reported red color converters, enabling brighter and more efficient laser-driven displays.
• • β-SiAlON:Eu2+ and Sr0.8Ca0.2AlSiN3:Eu2+ PiGFs integrated into laser-driven LCDs deliver 3502 lm and 206 lm W−1, demonstrating viability for next-generation high-brightness display backlights.