Yellow-emitting YAG:Ce transparent ceramic is recognized as an ideal color converter in high-power blue LEDs and LDs, but the absence of scattering centers in its microstructure leads to a low light extraction efficiency and poor light uniformity. Here, taking advantage of the scattering effect and the transparency of YAG:Ce ceramics, Ce-free YAG phase was used as a second component to form a composite with YAG:Ce phosphor. The sintered YAG:Ce-YAG ceramic possessed a high transparency of ∼63 % and a thermal conductivity of 8.9 Wm⁻¹ K⁻¹. Due to its beneficial thermal properties and high external quantum efficiency of 70.2 %, the YAG:Ce-YAG ceramic could be excited under a high blue-laser flux density of up to 9.60 W/mm² and showed a luminous emittance of 1220 lm/mm². Due to light scattering arising from the slightly different refractive indices of the two phases, the designed YAG:Ce-YAG ceramic showed better lighting effects than a single-phase transparent YAG:Ce ceramic.

发射黄光的YAG：Ce透明陶瓷被公认为是大功率蓝色LED和LD中理想的色彩转换器，但是在其微结构中不存在散射中心会导致光提取效率低和光均匀性差。在这里，利用YAG：Ce陶瓷的散射效应和透明性，将无Ce的YAG相用作第二组分，以与YAG：Ce荧光粉形成复合材料。烧结的YAG：Ce-YAG陶瓷具有〜63％的高透明性和8.9Wm ^-1 K ^-1的导热率。由于其有益的热性能和70.2％的高外部量子效率，可以在高达9.60 W / mm ²的高蓝激光通量密度下激发YAG：Ce-YAG陶瓷并且显示出1220 lm / mm ²的发光率。由于两相的折射率略有不同而引起的光散射，设计的YAG：Ce-YAG陶瓷比单相透明的YAG：Ce陶瓷显示出更好的照明效果。