TOPCon (Tunnel Oxide Passivated Contact) technology enhances solar cell efficiency by reducing charge carrier recombination at the rear surface through a thin tunnel oxide layer. This results in improved collection of charge carriers and lower contact resistance, leading to higher overall performance. Compared to traditional PERC methods, TOPCon offers superior passivation, better performance at high temperatures, and potentially lower long-term costs, making it a promising advancement in solar cell technology.