Fraunhofer CSP develops repair process for PERC solar cells

The performance of the solar cell contacts can be improved with laser-assisted current treatment. The process does not damage the solar cells but only optimizes faulty semiconductor-metal contacts.From pv magazine Germany Scientists from Germany's Fraunhofer Center for Silicon Photovoltaics CSP have developed a new process aimed at lowering the series resistance of monocrystalline PERC solar cells. The new technique was tested in partnership with German company CE Cell Engineering GmbH. "Contacting surface structures (emitters) of solar cells with high sheet resistance is already technically ...

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