Spherical red-emitting X1-Y2SiO5:Eu and α-Y2Si2O7:Eu phosphors with high color purity: The evolution of morphology, phase and photoluminescence upon annealing
Shaohong Liu, Hao Cui, Manmen Liu, Jialin Chen, Ming Wen, Song Li, Wei Wang, Ji-Guang Li, Xudong Sun.