Synthesis of nanoparticles / Nanoparticles / Synthesis and Characterization of nanomaterials / ZnO (Zinc Oxide) / Fabrication of Zinc Oxide Nanostructures / zinc Oxide Nanorods and nanoparticles leading to make Nanogenerator / Zinc Oxide Thin Film / Rare Earth doped Zinc oxide / RE doped Zinc oxide nanostructures / zinc Oxide Nanorods and nanoparticles leading to make Nanogenerator / Zinc Oxide Thin Film / Rare Earth doped Zinc oxide / RE doped Zinc oxide nanostructures