Observations of contact resistance in TOPCon and PERC solar cells

 
An illustration of resistance change paths

This work presents observations of hydrogen induced contact resistance in PERC and TOPCon solar cells, where the contact resistance has been isolated to occur at the Ag/m+Si interfaces, and respond differently to applied biases.

These insights are critical to the understanding of degradation in industrial solar panels.

You can read the full paper in Solar Energy Materials and Solar Cells.