Optical, electrical and microstructural studies of monoclinic CuO nanostructures synthesized by a sol-gel route

V. Dhanasekaran, N. Soundaram, Seong Il Kim, R. Chandramohan, Srinivas Mantha, S. Saravanakumar, T. Mahalingam

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

We have reported on the synthesis of CuO nanostructures via a simple sol-gel approach with high yield at low cost by the reduction of aqueous solutions of Cu(NO3)2 and Na2NO3. Synthesized nanostructures were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), fluorescence spectroscopy, Raman scattering and UV-Vis-NIR spectroscopy. Structural studies revealed that the prepared CuO nanostructures were polycrystalline in nature with monoclinic structure. The crystallite size of CuO nanostructures was estimated to be ∼10 nm using Debye-Scherrer's formula. The uniform and nanoregime grains were observed in SEM micrographs. The optical band gap value was estimated to be 1.2 eV using Tauc's plot. The Raman scattering investigations revealed Ag and Bg mode peaks at 278 cm-1, 332 cm-1 and 618 cm-1, respectively. This journal is

Original languageEnglish
Pages (from-to)2327-2333
Number of pages7
JournalNew Journal of Chemistry
Volume38
Issue number6
DOIs
StatePublished - Jun 2014

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