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Journal of Engineering and Applied Sciences
Year: 2018  |  Volume: 13  |  Issue: 18  |  Page No.: 7583 - 7589

Behavior of Localized Surface Plasmon Resonance with Shape, Size, Liquid Medium and Magnetic Field in Au:Ag Alloy

Nagham M. Obaid, Ghaleb Al-Dahash, Hassan A. Majeed and Asmaa Mahmood Hayder    

Abstract: In this research study the behavior of the subject of the oscillation resonance Surface Plasmon (SPR) and the size and shape of nanoparticles for alloy Au50: Ag50 prepared in a manner laser ablation in pure water and Sodium Dodecyl Sulphate (SDS) solution and at three different concentrations 0.25, 0.09, 0.01 molar. Where showed SEM pictures of colloidal nanoparticles for Au50:Ag50 alloy composition of two types of forms of nanoparticles, one cube-shaped in the case of energy use 730 mJ and the other on a spherical shape when energy use 430 mJ in a (SDS) solution and at wavelength 1064 nm. Laser ablation for the alloy under the influence of magnetic field led to increase the concentration and size of nanoparticles which led to the removal of the top of the subject of the oscillation resonance surface plasmon towards larger wavelengths, X-Ray Diffraction (XRD) spectra of colloidal nanoparticles of alloy prepared in water it showed when to shed the magnetic field during laser ablation process plays an important role in improving the optical properties of the NPs.

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