Comparison of photoluminescence properties of Gd2O3 phosphor synthesized by combustion and solid state reaction method

In this paper, we presented a comparison of Photoluminescence (PL) studies of Gd 2 O 3 phosphor prepared by two synthesis methods, high temperature (1400 °C) solid state reaction and low temperature combustion synthesis. Both of these methods synthesized Gd 2 O 3 phosphor successfully. Structural properties of Gd 2 O 3 phosphor were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR). Scanning electron microscope (SEM), Energy dispersive X-ray analysis (EDX), and Transmission electron microscopy (TEM). The results obtained for both methods of preparation were compared. The photoluminescence (PL) properties of pure Gd 2 O 3 were carried out over the range of 300 nm–650 nm. A PL emission band at UV region in between 318 and 370 nm along with blue, green and red emission was observed at 275 nm excitation.