| abstract |
A porous fluorescent ceramic, a preparation method therefor, a light-emitting device and a projection device. The porous fluorescent ceramic comprises a fluorescent ceramic phase and hole phases dispersed in the fluorescent ceramic phase, and at least a part of the hole phases are located in crystal grains of the fluorescent ceramic phase. The hole phases located inside the crystal grains can improve the uniformity of light emission, and can improve the light conversion efficiency and mechanical properties of the fluorescent ceramic. |