Photoluminescence properties of Pb5(PO4)3Br:RE (RE = Dy3+, Eu3+ and Tb3+) phosphor synthesised using solid‐state method

Abstract This study describes the luminous properties of Pb 5 (PO 4 ) 3 Br doped with RE 3+ (RE = Dy 3+ , Eu 3+ and Tb 3+ ) 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 3+ ‐doped Pb 5 (PO 4 ) 3 Br phosphor exhibited blue and yellow emissions at 480 and 573 nm, respectively, on excitation at 388 nm. Eu 3+ ‐doped Pb 5 (PO 4 ) 3 Br phosphor exhibited orange and red emissions at 591 and 614 nm, respectively, on excitation at λ ex = 396 nm. Pb 5 (PO 4 ) 3 Br:Tb 3+ phosphor exhibited the strongest green emission at 547 nm on excitation at λ ex = 380 nm. Additionally, the effect of the concentration of rare‐earth ions on the emission intensity of Pb 5 (PO 4 ) 3 Br:RE 3+ (RE 3+ = Dy 3+ , Eu 3+ and Tb 3+ ) phosphors was investigated.