Characterizing nickel oxide nanostructures produced by laser ablation method: effects of laser fluence
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Effects of laser fluence on properties of pulsed laser ablation-produced nickel (Ni) nanoparticles have been studied experimentally. In this experiment, the output pulse of a Nd–YAG laser at 1064-nm wavelength and 7-ns pulse width with four different fluences was employed to irradiate a high purity Ni bulk in distilled water. Productions were studied using UV–Vis–NIR spectrum of samples, X-ray diffraction pattern, photoluminescence spectrum, dynamic light scattering size measurement, and transmission and scanning electron microscope images. Results show that produced nanostructures were multi-crystalline structure nickel oxide nanoparticles with spherical shape, and their sizes decreased with increasing the fluence of laser pulse.
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