Chinese Optics Letters, 2017, 15 (12): 121602, Published Online: Jul. 18, 2018
Synthesis and photoluminescence properties of Sr4La(PO4)3O:RE3+(RE=Eu/Tb/Ce) phosphors
Abstract
A series of RE 3 + (RE = Eu / Tb / Ce )-activated Sr 4 La ( PO 4 ) 3 O (SLPO) phosphors are synthesized with a high-temperature solid-state reaction method. The photoluminescence properties, thermal stability, morphology, and CIE values of the SLPO : Eu 3 + / Tb 3 + / Ce 3 + phosphors are investigated. Under 394 nm excitation, the SLPO : Eu 3 + exhibits red emission, and the SLPO : Tb 3 + presents a green emission upon 379 nm excitation, while Ce 3 + -doped SLPO has a broad emission band ranging from 370 to 650 nm under 337 nm excitation. The investigation results indicate that the SLPO : Eu 3 + / Tb 3 + / Ce 3 + phosphors can be effectively excited by near-ultraviolet light and may have the potential to serve as red-, green-, and blue-emitting phosphors for applications in white light-emitting diodes.
Ju Cheng, Jia Zhang, Hongchao Zhang, Sardar Maryam, Xintian Bian, Zhonghua Shen, Xiaowu Ni, Jian Lu. Synthesis and photoluminescence properties of Sr4La(PO4)3O:RE3+(RE=Eu/Tb/Ce) phosphors[J]. Chinese Optics Letters, 2017, 15(12): 121602.