Synthesis and influence of Ce3+ codopant on the luminescence sensitivity of SrZnP2O7:Dy3+ phosphor

• SrZnP2O7:Dy3+, Ce3+ phosphor have been synthesized by combustion technique.
• SrZnP2O7:Dy3+, Ce3+ phosphors were characterized by XRD, PL, SEM and FTIR.
• SrZnP2O7:Dy3+ has excitation at 360 nm i.e. characteristics of solid state lighting.
• The SrZnP2O7:Dy3+ exhibits PL emission spectra ranging from 450 to 700 nm.
• SrZnP2O7:Dy3+, Ce3+ favorable to scintillation applications.

The present research describes a simple chemical combustion synthesis route to obtain SrZnP2O7:Dy3+ pyrophosphate co-doped with Ce3+ along with its optical, structural and morphological investigations which may be applicable for solid state lighting and scintillation application as well. The phase uniformity of the phosphor was confirmed by X-ray powder diffraction (XRD) and characterized by scanning electron microscopy (SEM), photoluminescent (PL) spectroscopy and room temperature FTIR spectrum. The photoluminescence (PL) properties were investigated under ultraviolet (UV) ray excitation. The SrZnP2O7:Dy3+ when excited at 360 nm (UV), exhibit two distinctive colors: a blue band centered at 485 nm and yellow band at 575 nm originating from Dy3+, these emissions may be useful for white light emission and favorable to solid state lighting. SrZnP2O7:Ce3+ exhibit emission at 361 nm and 391 nm when excited at 327 nm and Ce3+ co-doping in SrZnP2O7:Dy3+ enhances the emission intensity of SrZnP2O7:Ce3+ phosphor which may be applicable for scintillating application.

The photoluminescence (PL) properties were investigated under ultraviolet (UV) ray excitation.Figure optionsDownload as PowerPoint slide