Abstract
Nano pebbles of pure neodymium oxide is synthesized by the solution combustion method and they exhibit room temperature photoluminescence and thermoluminescence properties. Powder X-ray diffraction pattern reveals A-type hexagonal structure. Surface morphology is visualized by the field emission scanning electron microscopy. The visualized images are regular and irregular shapes with smooth surface. Energy dispersive X-ray spectroscopy reveals the existence of Nd, O and Na elements. X-ray photoelectron spectroscopy reveals the signature of all elements exist in the sample. The diffused reflectance spectrum is used to evaluate the optical band gap energy. Fourier transformed-infrared spectrum confirms the existence of Nd and O bond. Raman spectrum peaks are assigned and confirms A-type hexagonal phase. PL emission is observed in UV, blue, green and red region and the peaks are located at 325, 347, 380, 385, 422, 445, 485, 530, 605, 625, 650, 690 and 750 nm. The activation energies and the frequency factors of thermoluminescence are calculated. The synthesized Nd2O3 is a promising material for white light emitting diodes and the supra linearity features of TL is to be a potential candidate for dosimeters applications.
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