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Study of optical and morphological properties for Au-ZnO nanocomposite prepared by Laser ablation in liquid
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Study of optical and morphological properties for Au-ZnO nanocomposite prepared by Laser ablation in liquid
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Journal Article
Study of optical and morphological properties for Au-ZnO nanocomposite prepared by Laser ablation in liquid
2021
Overview
The preparation of Au-ZnO nanocomposite involves the synthesis of Au and ZnO colloidal solutions by Nd:YAG laser (1064nm) ablation of metal targets in deionized water followed by laser irradiation of the mixed colloidal solution by a second harmonic Nd:YAG laser (532nm). The UV-visible show the gold nanoparticle (NPs) peak at 525nm while the peak of the ZnO nanoparticle (NPs) at 375nm. The Au-ZnO nanocomposite showed a blue shift in the absorption of the ZnO excited, while due to the plasomon resonance and interfacial charge transfer of Au NPs lead to redshift in the absorption, also show the intensity absorpation increases with the concentration of the metal nanoparticles. The morphological properties of nanoparticles have been characterized by Transmission Electron Microscopy (TEM).
Publisher
IOP Publishing
Subject
