PERC Solar Cell Structure Diagram - Textured Front, Passivation & Copper Plating #1421434 (License: Personal Use)

This technical illustration depicts a PERC (Passivated Emitter and Rear Cell) solar cell’s layered architecture, including a textured front surface with SiO₂ passivation to reduce recombination, laser-cut grooves filled with copper plating for low-resistance current collection, and heavy phosphorus diffusion in the grooves to form local back-surface fields. The structure sits atop a p-type silicon substrate with an aluminium-alloyed BSF (Back Surface Field) and a rear copper contact for optimal carrier extraction.

Used in photovoltaic engineering educational materials, solar cell manufacturing documentation, and renewable energy research publications; targets engineers, researchers, and students seeking to understand advanced silicon solar cell designs and efficiency-enhancing features like localized rear contacts and surface passivation.