Mechanical scribing as a quality and reliability analysis tool for CIGSeS thin film solar cells

One of the important issues involved while taking a process from lab environment to pilot plant scale is the yield of the process. Mechanical scribing that is used for making integral interconnects in CIGSeS thin film solar cells can be used to test the mechanical properties of the absorber film. Hence, it is necessary that the process delivers cohesive absorber films that exhibit good adhesion to molybdenum back contact and high efficiencies that are amenable to mechanical scribing. Optical and scanning electron microscopy can be used to study the effect of scribing on the absorber film and the morphology of the scribe lines.