Cigs solar cell structure and method for fabricating the same
OwnerChuan-Lung Chuanginventor
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Abstract
A copper/indium/gallium/selenium (CIGS) solar cell structure and a method for fabricating the same are provided. The CIGS solar cell structure includes a substrate, a molybdenum thin film layer, an alloy thin film layer, and a CIGS thin film layer. According to the present invention, the alloy thin film layer is provided between the molybdenum thin film layer and the CIGS thin film layer, serving as a conductive layer of the CIGS solar cell structure. The alloy thin film layer is composed of a variety of high electrically conductive materials (such as molybdenum, copper, aluminum, and silver) in different proportions.
Claims8
A method for fabricating a copper/indium/gallium/selenium (CIGS) solar cell, comprising:
- putting a substrate having a molybdenum thin film layer configured thereupon on a roller set, wherein the molybdenum thin film layer is configured on the substrate by a sputtering process;
- driving the roller set to move the substrate toward a direction;
- using a sputtering machine provided over the molybdenum thin film layer to execute a sputtering operation on the molybdenum thin film layer to configure an alloy thin film layer thereupon;
- and
- configuring a CIGS thin film layer on the alloy thin film layer by a thin film deposition process.
Dependencies are inferred from the claim text.