Synthesis and photoluminescence characteristics of Ba2Ca(PO4)4:Dy3+ phosphors for n-UV based solid-state lighting

Abstract

A series of Ba₂Ca(PO₄)₄:Dy³⁺ phosphors were synthesized by the wet chemical method and the photoluminescence properties were systematically investigated. Under the 350 nm near ultraviolet excitation, Ba₂Ca(PO₄)₄:Dy³⁺ phosphor shows emission peak at 475 nm (blue) and 572 nm (yellow). At 0.5 mol% of Dy³⁺ ions, concentration quenching was shown. The present study implies that the Ba₂Ca(PO₄)₄:Dy³⁺ phosphors would be a suitable choice for solid-state lighting applications as a near ultraviolet convertible phosphor.