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Articles by V. Manoj
Total Records ( 2 ) for V. Manoj
  V. Manoj , M. Karthika , V.S.R. Praveen Kumar , S. Boomadevi , K. Jeyadheepan , R.K. Karn , R. John Bosco Balaguru and S.K. Pandiyan
  A new approach has been proposed to synthesis pure ZnO nanoparticles from zinc nitrate hexa-hydrate precursor and sodium carboxymethyl cellulose capping agent. The resulting nanoparticles were characterized by X-ray Diffraction (XRD), Fourier Transform Infra-red (FTIR) spectroscopy, photoluminescence spectroscopy and Field Emission Scanning Electron Microscopy (FESEM). The XRD results showed that particle size is in the range of few nanometers with hexagonal wurtzite structure. Photoluminescence and FESEM results suggested that the adopted method can be successfully utilized for the preparation of size controlled nanocrystalline ZnO powder.
  M. Karthika , V. Manoj , S. Boomadevi , K. Jeyadheepan , R.K. Karn , R. John Bosco Balaguru and S.K. Pandiyan
  Nano crystalline zinc oxide (ZnO) films were fabricated by dip coating of ZnO hydrogel. Zinc nitrate hexahydrate and sodium carboxymethyl cellulose were used to prepare the hydrogel. The dip coated samples were annealed at 400°C to obtain the high quality thin films. The films were characterized by X-Ray Diffraction (XRD) which indicated that the films are single phase with the wurtzite structure. Surface morphology of the nanoparticles were studied by Field Emission Secondary Electron Microscopy (FESEM) and optical properties were studied by photo luminescence spectroscopy. Further, gas sensing behaviour were checked for the coated films for ammonia and acetaldehyde vapours at room temperature.
 
 
 
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