Metallic and Magnetic Nanomaterials for Electronics Applications

Abstract

New research studies have consistently examined nanomaterials that possess both metallic and magnetic characteristics because of their wide range of uses, specifically in electronic applications. Their conductivity, optical, and mechanical properties at the nanoscale level are unique, unlike any bulk counterparts, which make them suitable for various electronics applications. Metallic nanomaterials, including silver, gold, copper, and platinum nanoparticles and many others, have exceptional electrical conductivity due to their high surface-to-volume ratio, making them ideal for use in conductive inks for all printed electronics, interconnects in microelectronics, and even thin-film transistors. They can also be used for catalyzing reactions in fuel cells and battery production. Specific synthesis procedures can further improve their electrical conductivity and mechanical properties to be selected as the best candidates for flexible substrates. Moreover, these materials also reveal exemplary thermal and optical properties, which are essential for electronic devices' heat management and ideal for photonic and optoelectronic applications, including sensors. Magnetic nanomaterials (MNMs), such as iron oxide, cobalt, and nickel nanoparticles, are widely used in the development of innovative electronics, including data storage and magnetic logic devices. Spintronics, which exploits the electron spin in addition to charge, is an emerging field that uses MNMs to create faster and more energy-efficient electronic devices. Additionally, MNMs are integral to the development of various sensors, including biosensors and electrochemical sensors, among others, enabling high sensitivity and specificity in detecting various physical and chemical changes. Furthermore, these materials are also essential in applications such as radio frequency circuits and microwave communication systems. This chapter highlights the key characteristics of metallic and MNMs that position them as highly promising candidates for a wide range of electronic applications. Their metallic and magnetic properties can also be combined within a single hybrid nanomaterial for more advanced electronic technologies. More technical analysis and application examples will be illustrated in the full chapter.