Synthesis and optical properties of CuO nanostructures obtained via a novel thermal decomposition method

R. Al-Gaashani, S. Radiman, N. Tabet, A. Razak Daud

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We report a novel method that allows the synthesis of copper oxide (CuO) nanostructures and control their morphology and size by rapid thermal decomposition of copper nitrate (CuN2O6) under ambient conditions. The size and morphology of the nanostructures can be controlled by changing the temperature and the duration of the decomposition process. The structure of the products was investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) equipped with energy dispersive spectroscopy (EDS). The results showed that the morphology of the nanostructures changed as the temperature was varied and their size increased with increasing the treatment time. The optical properties of the samples were investigated by UV-vis spectroscopy and a photoluminescence (PL) spectrometer. Rice-like nanostructures were observed and analyzed by X-ray photoelectron spectroscopy (XPS)/EDS and XRD which confirmed that the as-synthesized powders correspond to pure CuO.

Original languageEnglish
Pages (from-to)8761-8769
Number of pages9
JournalJournal of Alloys and Compounds
Issue number35
Publication statusPublished - 1 Sep 2011



  • CuO
  • Nanostructures
  • Optical properties
  • Thermal decomposition

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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