Method for raw etching silicon solar cells
OwnerArmin Kuebelbeck, Claudia Zielinski +1inventors
InventorsArmin Kuebelbeck, Claudia Zielinski, Thomas Goelzenleuchter
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Abstract
The present invention relates to a novel process for producing textured surfaces on multicrystalline, tricrystalline and monocrystalline silicon surfaces of solar cells or on silicon substrates which are used for photovoltaic purposes. It relates in particular to an etching process and an etching agent for producing a textured surface on a silicon substrate.
Claims10
Etching mixture for producing a textured surface on multicrystalline, tricrystalline and monocrystalline silicon surfaces of solar cells or on silicon substrates, for photovoltaic purposes, comprising hydrofluoric acid and mineral acids selected from the group consisting of nitric acid, sulphuric acid and phosphoric acid.
Dependencies are inferred from the claim text.