Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Optical Properties of Composite Silver Nanoparticles

Version 1 : Received: 24 January 2023 / Approved: 25 January 2023 / Online: 25 January 2023 (10:12:27 CET)

How to cite: Ali, I.E.; Almutairi, W.S. Optical Properties of Composite Silver Nanoparticles. Preprints 2023, 2023010453. https://doi.org/10.20944/preprints202301.0453.v1. Ali, I.E.; Almutairi, W.S. Optical Properties of Composite Silver Nanoparticles. Preprints 2023, 2023010453. https://doi.org/10.20944/preprints202301.0453.v1.

Abstract

Abstract composite silver nanoparticles were synthesised using melanin broth and Arabic gum as a reducing and binding agent. The reactions are carried out with water because it is a non-hazardous solvent. The produced composites either had specified diameters (average diameter of 50 nm) with high silver loading or lower loading composites with tuneable morphologies and electrical properties. UV-IR, gamma, and conventional light are used to characterise the synthesised composite silver nanoparticles. Furthermore, measurements are carried out of the dielectric constant, refractive index, energy gap, optical and electrical conductivities, and refractive index coefficients. The silver nanoparticle formation was validated by UV-Vis measurement of the sample, which demonstrated a distinct peak at a wavelength of 420 nm. The characteristics of the composite silver nanoparticles are also quantified using several methods, including XRD, SEM, and particle size analysis.

Keywords

Arabic gum; nanocomposite; melanin; optical properties; silver nanoparticles

Subject

MATERIALS SCIENCE, Nanotechnology

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