K 5 La(MoO 4 ) 4 :Pr 3+ Molybdate Phosphor: Synthesis and Spectroscopic Analysis for Applications in Optical Devices

A series of Pr 3+ ions activated K 5 La(MoO 4 ) 4 trigonal structured molybdate phosphors were prepared using a solid‐state reaction method. Structural, morphological, and optical properties of as‐synthesized material are reported. X‐ray diffraction (XRD) pattern confirmed the trigonal crystal system with a R‐3m (#166) space group. Surface morphology with irregularly shaped particles with a size in micrometers and elemental composition was confirmed using the scanning elelctron microscopy (SEM) and energy dispersive spectra (EDS). Under 450 nm excitation, photoluminescence spectra exhibit a strong orange emission with a dominant peak at 606 nm for Pr 3+ ions. The Obtained results indicate that single‐phase K 5 La(MoO 4 ) 4 : Pr 3+ phosphors could be a potential material for orange‐emitting light emitting diodes and other optoelectronic applications.