The influence of Ce~(3+) doping concentration on luminescence of Y_3Al_5O_(12) :Ce~(3+) phosphors synthesized by combustion method

摘要

Powder phosphors of yttrium aluminum garnet Y_3Al_5O_(12) (YAG), activated with trivalent cerium (Ce~(3+)) was synthesized by combustion from mixed metal nitrate reactants and urea with ignition temperature of 500℃～550℃. Sintering the precursor can improve the crystallization of YAG: Ce~(3+) phosphors so to promote the luminescence intensity. The influence of the concentration of Ce~(3+) on the luminescence character was studied. The crystalline structure and morphology are observed by X-ray powder diffraction picture and SEM picture respectively.