Abstract
Cubic phase of 5% samarium doped cerium oxide nanoparticles was successfully synthesized by hydrolysis assisted co-precipitation method. The average grain sizes of the as-prepared and annealed (800 °C) samples were 12–16 nm respectively. The rod like morphology of the post annealed sample was revealed by transmission electron microscope (TEM). The nanoparticles exhibited the orange and red color emissions when excited at 330 nm. The as-prepared and annealed powders showed orange emission with maximum intensity at 574 nm which is the characteristic peak of the Sm 3+ ion corresponding to the magnetic dipole transition between the 4G 5/2 and 6H 5/2 states. Size dependent luminous intensity was observed from photoluminescence studies.
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