The Heterojunction Silicon Wafer Solar Cell Group develops advanced solar cell architectures and related manufacturing processes which are capable of cost-effectively realising very high (> 24%) PV efficiencies on thin (< 120 microns) industry-size Cz silicon wafers. The group is operating an industrial pilot line for full-size heterojunction and back-contact silicon wafer solar cells, including inductively coupled plasma deposition and advanced copper metallisation methods. Selected research topics of the group include advanced surface passivation and heterojunction stacks, back-contact solar cells, inkjet printing, inline plating, femtosecond laser processing, atmospheric plasma treatment, and low-cost alternative TCOs. The group also operates an industrial ion implanter for back-contact solar cell development.
For further information, please contact:
Dr Thomas MUELLER
Head, Heterojunction Silicon Wafer Solar Cell Group