YAG:Ce crystal with a diameter of 110 mm is successfully grown by the temperature gradient technique (TGT). The effects of annealing on the luminescence efficiency of YAG:Ce crystal are investigated, and the optimal annealing temperature and atmosphere are obtained. The mechanism of variation behavior of the luminescence efficiency of YAG:Ce under different annealing conditions is discussed and some details on the luminescence associated with color centers are analyzed.
© 2010 Chinese Optics Letters
Dunhua Cao, Guangjun Zhao, Qin Dong, Jianyu Chen, Yan Cheng, Yuchong Ding, and Jun Zou, "Effects of annealing on luminescence efficiency of large-size YAG:Ce crystal grown by temperature gradient techniques," Chin. Opt. Lett. 8, 199-201 (2010)