GCL-SI reaches 20.6% efficiency in multi-crystalline PERC solar cells

By Kelly Pickerel GCL System Integration Technology recently announced that it has raised its self-developed Passivated Emitter Rear Cell (PERC) solar cell average efficiency to 20.1% in mass production by utilizing Reactive Ion Etching (RIE) technology, with the highest test reaching 20.6%. It marks a major step forward in advancing the efficiency of multi-crystalline cells.
Black silicon is well-known for its particularly useful properties, such as extremely low reflectance and weakly low absorption of some kinds of photons, for photovoltaic applications. Meanwhile, the main barrier for the introduction of diamond wire sawing of mc-Si into mass production is the difficulty to texture using typical

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