Phosphors that are designed for laser-lighting are essential to possess high luminescence saturation threshold. However, the current phosphors with adequate saturation threshold have been facing several technological limitations including costly, complex and tedious synthetic approaches. Herein, we report the facile fabrication of LuAG:Ce/glass composite films using an industry-friendly blade-coating method. The resultant composite film presents a porous architecture that can facilitate light extraction and confine the laser spots. When pumped by blue laser, the composite film shows a high internal quantum efficiency of 86% and the corresponding white light source shows a high luminous efficacy of 199 lm/W. Furthermore, the composite film shows no sign of saturation even under the irradiation of 30.1 W blue laser; therefore, a high luminous flux of 5496 lm can be achieved. The combination of these outstanding properties and the industry-friendly fabrication method can drive the development of commercially viable phosphors for high-power laser-lighting applications.

设计用于激光照明的荧光粉对于拥有高的发光饱和阈值至关重要。然而，具有足够的饱和阈值的当前磷光体已经面临若干技术限制，包括昂贵，复杂和繁琐的合成方法。在本文中，我们报告了使用行业友好的刮刀涂覆方法轻松制造LuAG：Ce /玻璃复合薄膜的过程。最终的复合膜呈现出一种多孔结构，可以促进光提取并限制激光点。当用蓝色激光泵浦时，复合膜显示出86％的高内部量子效率，相应的白光源显示出199 lm / W的高发光效率。另外，即使在30.1W的蓝色激光的照射下，复合膜也没有饱和的迹象。因此，可以获得5496 lm的高光通量。这些出色的性能与行业友好的制造方法相结合，可以推动大功率激光照明应用中商业上可行的荧光粉的开发。