Photoluminescence properties of Pb(PO)Br:RE (RE = Dy, Eu and Tb) phosphor synthesised using solid-state method.

This study describes the luminous properties of Pb(PO)Br doped with RE (RE = Dy, Eu and Tb) synthesised using the solid-state method. The synthesised phosphor was characterised using Fourier-transform infrared, X-ray diffraction, scanning electron microscopy and photoluminescence measurements. Dy-doped Pb(PO)Br phosphor exhibited blue and yellow emissions at 480 and 573 nm, respectively, on excitation at 388 nm. Eu-doped Pb(PO)Br phosphor exhibited orange and red emissions at 591 and 614 nm, respectively, on excitation at λ = 396 nm. Pb(PO)Br:Tb phosphor exhibited the strongest green emission at 547 nm on excitation at λ = 380 nm. Additionally, the effect of the concentration of rare-earth ions on the emission intensity of Pb(PO)Br:RE (RE = Dy, Eu and Tb) phosphors was investigated.