Optical characteristics of silver-based nano-composites fabricated by an environmentally friendly method

Author:

Malakhovska T.O., ,Pogodin A.I.,Filep M.J.,Pop M.M.,Studenyak Ya.I.,Nemesh K.M.,Mariychuk R.,Vakulchak V.V.,Komanicky V.,Vorobiov S., , , , , , , , , ,

Abstract

This work presents a simple and environmentally friendly method of synthesis of chitosan and Ag nanocomposites. The structure of the obtained organic matrix was determined by Fourier-transform infrared spectroscopy (FTIR). Formation of chitosan- chitin copolymer was discovered. Nanocomposite films with silver content of 9–71 wt.% were prepared. The microstructure and elemental composition of the obtained films were investigated by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The prepared films are characterized by uniform distribution of silver nanoparticles in the organic matrix. Optical properties were studied by diffuse reflectance spectroscopy. The diffuse reflectance spectra of the films have maxima. The increase of the Ag 0 concentration in the nanocomposite films was found to lead to the maximum shift of the diffuse reflectance spectra to longer wavelengths. The optical transitions energies were estimated using the Kubelka–Munk function in combination with the Tauc method.

Publisher

National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Structure and optical characterization of chitosan-chitin/Ag nanocomposite thin films;Semiconductor Physics, Quantum Electronics and Optoelectronics;2024-03-12

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