PERC technology adds a passivation layer on the rear of the cell, reflecting unused light back for a second absorption increasing efficiency by 1-2% over standard mono cells.

• Rear Passivation Layer : A dielectric passivation layer on the rear surface of the cell reduces electron recombination. Local openings allow rear contact, while the rest reflects long-wavelength light back into the wafer.
• Monocrystalline Silicon : Cut from a single silicon crystal using the Czochralski process, mono cells have uniform structure leading to fewer defects and higher carrier mobility than polycrystalline alternatives.
• Enhanced Low-Light Performance : The PERC rear reflector boosts IR light capture, improving performance in diffuse/cloudy conditions critical for regions with monsoon seasons or overcast mornings.
• Best Value in Solar : Mono PERC delivers the highest efficiency-to-cost ratio of any widely deployed technology making it the workhorse choice for millions of installations globally.