Manz showcases OneStep selective emitter technology

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Manz’s selective emitter structures are created using a laser. Specially developed laser optics allow parts of the phosphorous, present after diffusion in phosphorus glass, to be carefully diffused again to the surface of the solar cell without any defects as the company states.

As a result, the doping with phosphor atoms can be locally increased, thus significantly boosting the conductivity between the silicon wafer and the contact fingers.

Having already undergone multiple tests, the technology has already received initial orders from Yingli, Bosch and Conergy.