Abstract
The Yb3+ doped Gd2O3 phosphors have been prepared by combustion route method. The structural, morphological, compositional and vibrational analysis of the Yb3+ doped Gd2O3 phosphor have been studied by X-ray diffraction, transmission electron microscopy, energy dispersive X-ray and Fourier transform infrared spectroscopy. The results indicated that Yb3+ doped Gd2O3 phosphor synthesized by combustion had particle size ranging from 15 to 38 nm, for the different concentration of the Yb3+. The optical and luminescence properties of prepared phosphors had been studied by using 980 nm laser excitation. The effects of Yb3+ doping and annealing temperature on luminescence properties were also studied. Photoluminescence spectra showed that nanocrystals exhibited emission at near infrared region corresponding to different Stark labels of Yb3+ ions. The theoretical mechanism of luminescence was explored. The results indicate that this material may be suitable for infrared laser devices.
Published Version
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