title: Composite phase ceramic phosphor of Al₂O₃-Ce:YAG for high efficiency light emitting.
abstract: We present our achievement which is a ceramic plate phosphorable to produce white light when directly combined with commercially available blue light emitting diodes. The ceramic phase structure is that the Al₂O₃ particle is uniformly distributed in the Ce:YAG matrix. The Al₂O₃-Ce:YAG ceramic phosphor has a better luminous efficacy than the transparent Ce:YAG ceramic phosphor under the same test condition. The Al₂O₃ particle plays an important role in promoting the luminous efficacy. The Al₂O₃ particle changes the propagation of the light in ceramic, and it reduces the total internal reflection. That is why the composite phase ceramic phosphor improves extraction efficiency of light.
authors.forename: Yanru
authors.initials: Y
authors.lastname: Tang
authors.forename: Shengming
authors.initials: S
authors.lastname: Zhou
authors.forename: Chong
authors.initials: C
authors.lastname: Chen
authors.forename: Xuezhuan
authors.initials: X
authors.lastname: Yi
authors.forename: Yue
authors.initials: Y
authors.lastname: Feng
authors.forename: Hui
authors.initials: H
authors.lastname: Lin
authors.forename: Shuai
authors.initials: S
authors.lastname: Zhang