Tel Solar Ag

Evelyne Vallat-Sauvain

Ulrich Kroll

Johannes Meier

Daniel Borrello

Stefano Benagli

Castens Lucie

Giovanni Monteduro

Miguel Marmelo

Jochen Hoetzel

Yassine Djeridane

Jerome Steinhauser

Jean-Baptiste Orhan

The present invention provides an improved thin film solar cell, wherein at least one additional resistive transparent conductive oxide (TCO) layer is incorporated into the solar cell. The additional resistive TCO electrically separates the conductive TCO layers acting as electrodes of such a cell and thus decreases or prevents performance losses. Furthermore, methods for the production of such solar cells are disclosed.

Method for obtaining high performance thin film devices deposited on highly textured substrates

There is provided a method of coating a substrate with a zinc oxide film. The method includes (a) providing a substrate with at least one substantially flat surface, (b) subjecting the surface at least partially to a plasma-etching process, and (c) depositing on the etched surface, a layer that includes zinc oxide. The method is particularly suitable for manufacturing solar cells.

Method of coating a substrate

A method for manufacturing a micromorph tandem cell is disclosed. The micromorph tandem cell comprises a &#x3bc;c-Si:H bottom cell and an a-Si:H top cell, an LPCVD ZnO front contact layer and a ZnO back contact in combination with a white reflector. The method comprises the steps of The micromorph tandem cell can achieve a stabilized efficiency of 10.6%.

High efficiency micromorph tandem cells

A thin film photovoltaic device on a substrate is being realized by a method for manufacturing a p-i-n junction semiconductor layer stack with a p-type microcrystalline silicon layer, a p-type amorphous silicon layer, a buffer silicon layer comprising preferably intrinsic amorphous silicon, an intrinsic type amorphous silicon layer, and an n-type silicon layer over the intrinsic type amorphous silicon layer.

Method for depositing an amorphous silicon film for photovoltaic devices with reduced light-induced degradation for improved stabilized performance

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Chezard-St. Martin, Switzerland

Evelyne Vallat-Sauvain