A novel UV-emitting phosphor: NaSr4(BO3)3: Pb2+

Abstract

Pb2+ doped NaSr4(BO3)(3) materials were prepared by a solution combustion synthesis method. The phase analysis of all synthesized materials was carried out using the powder XRD. The synthesized materials were investigated using spectrofluorometer at room temperature. The excitation and emission bands of NaSr4(BO3)(3): Pb2+ were observed at 291 and 368 nm, respectively. The dependence of the emission intensity on the Pb2+ concentration for the NaSr4(BO3)(3) was studied in detail. It was observed that the concentration quenching of Pb2+ in NaSr4(BO3)(3) is 0.01 mol. The Stokes shifts of NaSr4(BO3)(3): Pb2+ phosphor were calculated to be 7190 cm(-1). (C) 2015 Elsevier B.V. All rights reserved.