Abstract

A series of RE³⁺ (RE=Eu/Tb/Ce)-activated Sr₄La(PO₄)₃O (SLPO) phosphors are synthesized with a high-temperature solid-state reaction method. The photoluminescence properties, thermal stability, morphology, and CIE values of the SLPO:Eu³⁺/Tb³⁺/Ce³⁺ phosphors are investigated. Under 394 nm excitation, the SLPO:Eu³⁺ exhibits red emission, and the SLPO:Tb³⁺ presents a green emission upon 379 nm excitation, while Ce³⁺-doped SLPO has a broad emission band ranging from 370 to 650 nm under 337 nm excitation. The investigation results indicate that the SLPO:Eu³⁺/Tb³⁺/Ce³⁺ 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.

© 2017 Chinese Laser Press

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