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Crystalline silicon solar cells tout 19% efficiency
Tech Business
Written by Gizmo   
Thursday, 28 May 2009 10:42

Christoph Hammerschmidt
EE Times Europe

A research team at the Stuttgart University has achieved an efficiency record for laser-processed solar cells based on crystalline silicon. The researchers claim that the manufacturing process is fit for industrial volume production.

The postgraduate research group led by Jürgen Köhler managed to produce crystalline silicon solar cells with an efficiency of 19 per cent. Hitherto, this technology was limited to 16 per cent.

In the normal solar cell manufacturing, the pn junction is achieved in a high-temperature process in a diffusion furnace. The Stuttgart research group however used a pulsed laser beam instead in order to achieve the doping.

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