Tunnel oxide passivated contact (TOPCon) technology will be the next big thing from this year on. By the end of 2023, PV production capacity will exceed 450GW, putting this technology in first place in terms of market share in the following years. All TOPCon cells are equipped with passivating contact on the rear and, most of them, with selective emitters or with LECO (Laser Enhanced Contact Optimization) processed surface on the front, which increase the voltage to above 725mV and enable cell efficiencies in production of around 24.5%. The next step in cell development is the implementation of passivating contacts for the p+ polarity.
