Photoluminescence properties of Sr2bo3cl:Dy3+ phosphor for solid state lighting

In this paper we report the synthesis of Sr2BO3Cl:Dy3+ phosphor prepared by modified solid state method. X-ray powder diffraction (XRD) and Photoluminescence (PL) were carried out. The absorption band located at 351 nm is a main excitation peak matching with the emission of near-ultraviolet light (340-400 nm). The emission spectrum consists mainly of two groups of line, which are situated around 485 nm (blue emission) and 576 nm (yellow emission). These line can be assigned to the transitions 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2, respectively. The concentration quenching effect for Dy3+ was found at the optimum doping concentration of 1 mol%. The prepared phosphor may be useful for eco-friendly lighting technology.