Plasmonic Absorption of Gold and Silver Nanoparticles in Water
Noor R. Abdulhameed , Dr. Hyder A. Salih , Dr. Khaleel I. Hassoon , Dr. A. K. Ali
Abstract

Gold and silver nanoparticles were prepared as colloidal in water by pulsed laser ablation method. Nanoparticles are characterized by UV-Vis, FTIR and Atomic absorption spectroscopy. Absorbance spectrum has been measured as a function of time and laser energy. Both types of colloidal nanoparticles showed plasmonic absorption in the visible spectrum at 525 nm and 400 nm for Au and Ag nanoparticles, respectively.
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