CIGS solar cell and preparation method thereof
A technology for solar cells and back electrode layers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems affecting the performance of CIGS solar cells and low conversion efficiency of CIGS solar cells, and achieve the effect of eliminating surface crystallization and improving conversion efficiency
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[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can appreciate that, in the various embodiments of the present invention, many technical details are set forth for the reader to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present invention can be realized.
[0026] The invention relates to a preparation method of a CIGS solar cell, which comprises: forming a back electrode layer and a CIGS layer on the surface of a substrate in sequence; etching the surface of the CIGS layer, cleaning, drying and annealing after the etching is completed; A buffer layer, a window layer and a tra...
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