Method for preventing short-circuits or shunts in a large area thin film solar cell and cell obtained thereby
AssigneeNukem GmbH
InventorGert Hewig
Life of this patent
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Abstract
A method to prevent short-circuits or shunts in a large area thin film solar cell comprises applying, to a substrate with a first conductive electrical contact, at least one first layer comprising a p-type or n-type conductive layer and a second layer comprising an n-type or p-type conductive layer or a Schottky barrier layer. The second layer, in turn, is provided with a second conductive electrical contact. Those areas of the first conductive electrical contact which are effectively uncovered by the first layer are passivated after forming the first layer and before application of the second layer.
Claims12
A method for preventing short-circuits or shunts in a large area thin film solar cell, said method comprising the steps of sequentially applying, to a substrate comprising a first conductive electrical contact, (a) at least one first layer comprising a p-type or n-type conductive layer, and (b) a second layer comprising an n-type or p-type conductive layer or a Schottky barrier layer, said second layer also being provided with a second conductive electrical contact wherein, after forming the first layer and before application of the second layer, there is practiced the step of passivating those areas of the first conductive electrical contact which are effectively uncovered by the first layer.
Dependencies are inferred from the claim text.