Introduction
A thin film is a layer of material ranging from fractions of a nanometer to several micrometers in thickness. Thin film deposition is the act of applying a thin film of material onto a substrate (Rao and Shekhawat, 2013).
For example a household mirror. Thin film technologies are a means of substantially
minimizing the cost of solar cells, this is because thin film solar cells are cheaper to manufacture due to their reduced material costs, energy costs and handling costs.
Aluminium thin films have great coating properties required for optical, microelectronics, telecommunication and constructional applications (Frey, 2015).