Photovoltaic cell and method of its manufacture
AssigneeYeda Research and Development Co. Ltd.
InventorsGary Hodes, Eran Edri, Elena Rabinovich
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Abstract
A method is presented for use in manufacture of a semiconductor device, such as a photovoltaic cell. The method comprises: providing a structure comprising a ZnO layer; applying a surface treatment to said structure for a certain time period to form a layer of ZnS on said ZnO layer; and depositing an active structure on said ZnS layer. The active structure may be a light absorbing structure, including a light absorbing semiconductor or a molecular light absorbing dye. The provision of the ZnS buffer layer between the ZnO layer and the active structure improves the device performance.
Claims28
A method for use in manufacture of a semiconductor device, the method comprising:
- providing a structure comprising a ZnO layer;
- applying a surface treatment to said structure for a certain time period to form a layer of ZnS on said ZnO layer;
- and
- depositing an active layer structure on said ZnS layer, thereby providing substantially even coating of the ZnO layer by said active layer structure, wherein the active layer structure comprises at least one of the following:
- (a) a semiconductor layer structure, and (b) a molecular dye structure.
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A method for use in manufacture of an electrode arrangement for a photovoltaic cell, the method comprising:
- providing a structure formed by a ZnO layer on an electrically conducting and optically transparent substrate;
- applying a surface treatment to said structure for a certain time period to form a layer of ZnS on said ZnO layer;
- depositing an active structure on said ZnS later, said active structure comprising at least one of the following:
- (a) a semiconductor layer structure comprising a light absorbing semiconductor, and (b) a molecular dye structure.
A semiconductor device comprising:
- an electrode structure comprising a ZnO porous layer, a ZnS layer on said ZnO layer, and an active structure on top of the ZnS layer, said active structure comprising at least one of the following:
- (a) a semiconductor layer structure, and (b) a molecular dye structure.
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Dependencies are inferred from the claim text.