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New Generation Silicon Solar Cells

5.3 Reflection

New Generation Silicon Solar Cells

disadvantage:

More difficult to form it on multi-/polycrystalline silicon layers no sufficient reflection reduction

The surface area is increased   higher surface carrier recombination rates

New:

A focused laser scans the

wafer surface to form a dotted matrix

The damage on the surface of the

crystall will be etched away afterwards

Advantage: it is better for the

environment and can be used on

different materials

Reflection can be reduced from ~35%  to 20%

Laser texturized poly chrystall silicon

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