| Abstract: | In this work,yttrium-doped zinc oxide(YZO) nanopowder was synthesized via hydrothermal precipitationmethod. The microstructure and optical properties of yttrium-doped zinc oxide nanopowder were characterized,which confirmed the well-crystalline wurtzite hexagonal phase of Zn O. The yttriumdoped zinc oxide nanopowder grains formed the nanobolts of ~400 nm in length and ~900 nm in width.High resolution-transmission electron microscopy(HR-TEM) of the nanobolts revealed uniform lattice fringes and no visible faults and/or distortions. X-ray photoelectron spectroscopy(XPS) analysis confirmed the presence of yttrium in the zinc oxide lattice,proving the contribution of yttrium on the microstructural and optical properties of the material. A strong ultra violet(UV) emission peak of the YZO exhibited a red shift compared to pure zinc oxide,which was ascribed to the defects and the formation of a shallow energy level caused by the incorporation of yttrium. |
