Non-destructive Microcracks Detection Techniques in Silicon Solar Cell

A very high demand and limited stock of fossil fuels, renewable energy in very particular solar energy is the mainly focused area for research these days. This review paper presents the nondestructive optical testing techniques for the solar cells. The impacts of microcracks in solar cells as well as photovoltaic modules have been studied in this paper. Laser beam induced current, electron beam induced current, electroluminescence and photoluminescence are mainly discussed techniques in this paper. All the aforementioned methods will be reviewed, highlighting some of their salient characteristics including merits and demerits. For completion and thoroughness, some image processing techniques for the shape and size detection of micro-cracks will also be discussed.