Ce:YAG Scintillator Crystal -A fast decay scintillation material used in white LED Ce YAG Scintillator Crystal Ce:YAG single crystal has obvious absorption peak at 340nm and 460nm, which is the characteristic absorption peak of Ce 3+. At present, the emission wavelength of InGaN blue chip used in commercial white LED is 460 nm. The wide absorption band of Ce:YAG single crystal with a central wavelength of 460 nm indicates that it can effectively absorb blue light emitted from blue chip., The blue light emitted by the chip and the yellow light emitted by the Ce:YAG chip are superimposed to form white light. Moreover, Ce:YAG single crystal has good thermal stability, which is particularly important for the manufacture of high-power white LED devices.. With the increase of the thickness of Ce:YAG wafer, the light efficiency of white LED devices packaged with blue chip and Ce:YAG wafer increases gradually, and the color temperature and color rendering index decreases gradua...