JinkoSolar today announced a record high efficiency of 24.2% was achieved by its large-area n-type TOPCon monocrystalline silicon solar cell. Testing was conducted by the Photovoltaic and Wind Power Systems Quality Test Center at the Chinese Academy of Sciences (CAS).

TOPcon (Tunnel Oxide Passivated Contact) is a newer solar manufacturing concept where a thin oxide layer is introduced to the silicon cell to reduce recombination losses and increase cell efficiency.

The large-area N-Type cell features JinkoSolar’s “HOT” cell design, which is based on the tunnel oxide passivating contact technology. JinkoSolar’s high quality n-type wafer, selective doping technology and advanced fine-line printing technology allow the company to achieve 24.2% cell efficiency across its entire product chain. The world PV module power record of 387.6 W for n-type half-cell module was fabricated using JinkoSolar’s HOT cell design.

N-type HOT technology is a key R&D milestone for JinkoSolar and is opening up a new path toward developing high-efficiency industrial products. N-type HOT technology also demonstrates the competitiveness of JinkoSolar products when compared to current HIT and IBC technologies.

News item from Jinko