Speaker
Description
Nanoparticle thin films have a vast range of applications in various fields due to their superior properties. There are a number of methods for nanoparticle thin film coatings, for example spray pyrolysis, electrodeposition, spin coating and sol-gel process. However, these methods are either a multistep synthesis or require the use of toxic substances. The sparking method is a onestep, simple and cost-effective process. It can be used to prepare nanoparticles and nanoparticle-thin films by applying a high voltage across any two metal wire tips. This talk will cover effects of electric and magnetic fields on film morphology and crystalline phase formation. Preparartion and characterisation of various noble metals, metal oxides and binary oxides nanoparticle thin films will be presented. It was found that the electric and magnetic fields enhanced the growth rate and uniformity the films while the magnetic field also altered a phase formation. Review of the sparked nanoparticles or nanoparticle thin films for some potential applications will be addressed.
