Imec’s screen printed large-area nPERT solar cells surpass 23 percent efficiency

Belgian research institute Imec announced that its latest generation of large-area monofacial screen-printed rear-emitter nPERT cells feature a conversion efficiency of 23.03 percent, certified by Fraunhofer ISE CalLab. The nPERT (n-type Passivated Emitter and Rear Totally diffused) solar cells are made using an industry-compatible screen-printing process that has been designed as an upgrade of conventional pPERC (p-type Passivated Emitter and Rear Cell) processes. According to Imec, its nPERT technology is projected to reach 23.5 percent efficiency by the end of this year.
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