Abstract
Silver/polyvinyl alcohol (PVA) nanocomposites are prepared via quick precipitation method, using hydrazine as a reducing agent. Preparing of silver/PVA nanocomposites by this method is done for the first time. The samples are characterized by Uv-Visible spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM). Nonlinear optical properties are carried out by Z-scan technique using a blue CW laser beam operated at wavelength 405 nm. It is shown that the synthesized samples have negative nonlinear refractive index and the magnitude is in the order of 10−8. The nonlinear refractive index increases as amount of reducing agent increases.
Highlights
Nanoscience and nanotechnology primarily deal with the synthesis, characterization, exploration, and exploitation of nanostructure materials [1] and recently this field has provided solutions to many technological challenges, e.g., solar cell, medicine, water treatment [2]
In this paper we present our synthesis method, structural and nonlinear optical properties of silver nanocomposites which are produced, to the best of our knowledge, for the first time by quick precipitation method in polyvinyl alcohol (PVA) liquid
The silver nanocomposites are synthesized by following steps. 5 wt% PVA solution is prepared by dissolving PVA powder in deionized water at the 90◦C in water bath
Summary
Silver/polyvinyl alcohol (PVA) nanocomposites are prepared via quick precipitation method, using hydrazine as a reducing agent. Preparing of silver/PVA nanocomposites by this method is done for the first time. The samples are characterized by Uv-Visible spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM). Nonlinear optical properties are carried out by Z-scan technique using a blue CW laser beam operated at wavelength 405 nm. It is shown that the synthesized samples have negative nonlinear refractive index and the magnitude is in the order of 10−8. The nonlinear refractive index increases as amount of reducing agent increases.
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