• Mahipal Singh Deora
• S. K. Sharma

The nanocrystalline Copper oxide (CuO) thin films have been synthesized on glass substrate by a facile solution processed spin coating technique and as deposited CuO thin films were annealed at 150 °C and 500 °C temperature for 1 hour in air. X-ray diffraction pattern shows that the films are nanocrystalline with the monoclinic structure and also present the random orientation of crystallites. The crystallite size increases with increasing in the annealing temperature of CuO thin films. The crystallite size corresponding to preferred diffraction peaks (111) were found to be 30nm and 62nm for thin films annealed at 150 °C and 500 °C temperature. The SEM studies exhibited homogeneous surface morphological and uniform deposition of thin film on the glass substrate. The EDAX spectra of thin film annealed at 150 °C confirmed the presence of copper, oxygen elements in the film. The FTIR spectra displayed the formation of Cu-O bonding in thin films. The optical transmission of CuO thin films in the visible and near infrared spectral region was found to be above 80%. The optical band gap energy decreases with increasing the annealing temperature. The estimated energy band gap of CuO thin film annealed at temperature 150 °C and 500 °C were found to be 1.62eV and 1.43 eV. The influence of annealing temperature on the physical properties of CuO thin films were examined.

Nanocrystalline, Solution-processed Spin coating technique, Visible and near infrared spectral region

"Structural, morphogical, optical studies of nanocrystalline CuO thin films by solution processed Spin Coating technique ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.669-674, January-2019, Available :http://www.jetir.org/papers/JETIR1901993.pdf

"Structural, morphogical, optical studies of nanocrystalline CuO thin films by solution processed Spin Coating technique ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp669-674, January-2019, Available at : http://www.jetir.org/papers/JETIR1901993.pdf