Luminescence properties of Dy³⁺:GdAlO₃ nanopowder phosphors

Different concentrations of dysprosium (Dy³⁺) doped gadolinium aluminates (GdAlO₃) have been newly synthesized by the wet chemical route method. Very fine particles in the nanometer range could be prepared by this method, as evidenced by X-ray diffraction and SEM measurements. The XRD profile confirms their orthorhombic nature, which is well correlated with the reported results. Luminescence studies on these compounds have been carried out on the emission and excitation, along with lifetime measurements. Such luminescent powders are expected to find potential applications as new optical materials. The emission procedure in the system has also been elucidated by an energy level scheme.