Authors:Nishant Kumar and Anu Katiyar
Abstract:
A sample may be referred to as a thin film if one of its dimensions is much smaller than the other two [1]. They consist of thin material layers that range in size from a few micrometres to fractions of a nanometre. Thin films are advantageous for optical coatings, photonic devices, electronic semiconductor devices, etc. The substrate material, the rate and angle of deposition, the ambient environment, and the deposition technique all have a significant impact on thin film attributes. High optical transmission/reflection, adhesion, hardness, porosity, chemically inert for corrosive environments, high resistivity or conductivity, and stability with regard to stoichiometry, orientation in single, and temperature and polycrystalline films are among the specific film properties required by the particular applications. Additionally, amorphous films have been proven to be beneficial in lasing materials [5] and optical sensors [2-4].