RENA has said that its inline passivated emitter and rear cell (PERC) processing equipment ‘InPERC’ has achieved solar cell efficiencies at a customer site in China of 18%, without the use of selective emitter cell design.
The InPERC technology undertakes rear-side smoothing, passivation and laser ablation, including SoLayTec’s ‘InPassion’ atomic layer deposition (ALD) tool to provide a key aspect of the efficiency gains, according to the company.
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The company said that the Chinese customer adopted the InPERC solution for its high performance pilot line to meet the 18% efficiency requirements for multicrystalline solar cells recently imposed on PV producers by the Chinese Government.