Featured in FUTURE PV – 09-2014

Laser ablation on modern solar cells

Solar cells: Laser marking and structuring for dielectric layers, laser drilling, laser firing and laser doping are needed for most modern and future solar cell concepts. Only an optimal process design enables cost effective process improvements. Jens Theobald, research engineer at the International Solar Energy Research Center Konstanz (ISC), Richard Hendel, Sales Manager for Photovoltaic Applications at Rofin-Baasel Lasertech, and Stephan Grosser, Team Leader, c-Si Defect Diagnostics, Fraunhofer Center for Silicon Photovoltaics CSP, report on an approach using laser-ablation processes for current PERC solar cells and applications for emerging cell concepts, i.e. bifacial n-type solar cells.

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pv magazine

15 Sep 2014

Laser ablation is widely used in the PV industry for solar cell processing. In the past laser edge isolation, laser doping processes for selective emitters and laser marking have been successfully adopted in solar cell manufacturing. Most modern and future solar cell concepts need to apply laser processes for the ablation of very thin dielectric …

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