Document Type : Review Paper
Authors
1
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
2
University of Tehran
10.22059/jufgnsm.2024.02.05
Abstract
Nowadays, conductive nanocomposites are widely utilized in many applications of electronic equipment, telecommunications, the internet of things (IOT), and biosensors. Enhancing electrical properties, transparency, mechanical strength, or surface adhesion in materials for printed circuits can drive advancements in related industries. To improve the conductivity, it’s significant to pay more attention to the types of electrical resistance (ER) in nanostructures such as tunneling resistance, contact resistance, and their mechanisms. Several review papers examine the synthesis processes of nanowires and how their diameter affects conductivity. Others concentrate on the mechanical properties and stability of reinforcement particles, along with efforts to synthesize rGOs and analyze their mechanical and electrical properties. However, none of these studies specifically address how morphology and synthesis impact conductivity in optoelectronic materials. This paper reviewed the various data obtained about the conductivity of single and multiple silver micro-flake, nanowires, nanoparticles, and rGO systems as 2D, 1D, and 0D nanostructures. To obtain the best conductivity by statistical methods, tried to find a mathematical relation between ER and structural parameters. Proportions of 20 wt.% for silver Micro-flakes, 20 wt.% for silver nanowires, and 5 wt.% for silver nanoparticles, respectively, may be suitable. Further, the most efficient result was obtained at the lowest aspect ratio for Ag-NWs. In general, it can be concluded that the higher the aspect ratio consequent the lower the ER. Also, probably, rGO especially without metal heteroatom can be a proper substitute for Ag micro-flakes.
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