Influence of Laser irradiation on nano-sized powder of Metal oxide

Journal Article

Farooq, W. A. . 2014

• Publication Work Type: Research
• Publication Online URL: http://link.springer.com/article/10.1134/S0036024414130056
• Magazine \ Newspaper: Russian Journal of Physical Chemistry A
• Volume Number: 13

Publication Abstract

ZnO Nano powders were prepared by co-precipitation method which includes post-oxidation and annealing in air. Influence of laser irradiation was carried out using 355 nm laser on the physical properties of ZnO nanoparticles. SEM studies reveal agglomeration of grains resulting into enlargement and deformation of the nanoparticles. XRD pattern exhibited decrease in FWHM which is a clear evidence of the increase in crystallite size due to laser irradiation. Optical properties showed decrease in the band gap of the laser irradiated Nano powders. The observed results indicated the UV laser irradiation increases the ZnO nanoparticles crystallinity that affects the optical properties of the ZnO.