Photovoltaic device and method for manufacturing thin-film solar cell

Abstract

A manufacturing method of a photovoltaic device and a solar cell is disclosed. The method includes manufacturing a photovoltaic cell using nanoimprint technology to define individual cell units of the photovoltaic device. The method can include providing a substrate; forming a first conductive layer over the substrate; forming first grooves in the first conductive layer using a nanoimprint and etching process; forming an absorption layer filled in the first grooves over the first conductive layer; forming second grooves in the absorption layer using a nanoimprint process; forming a second conductive layer filled in the second grooves over the absorption layer; and forming third grooves in the second conductive layer and the absorption layer, thereby defining a photovoltaic cell unit. In addition, the nanoimprint process is contrary to a conventional manufacturing process, the nanoimprint process can conveniently carry out a conventional rollable manufacturing process, simplify the manufacturing of the photovoltaic device, and reduce the manufacturing cost.

Description

Technical field [0001] The invention relates to a photovoltaic cell, in particular to the preparation of a photovoltaic cell. Background technique [0002] Photovoltaic cells, also known as solar cells, convert light energy into energy and electricity. In order to provide a higher conversion rate, the industry continues to develop photovoltaic cells and their preparation methods. For example, thin film photovoltaic cells can already provide better conversion rates. Traditionally, thin-film photovoltaic devices are prepared by laser and mechanical cutting to define, connect, and isolate photovoltaic devices to become connected photovoltaic cells. It has been found that these methods will cause low productivity and damage the surface of photovoltaic cells. Therefore, although the existing methods can generally achieve the desired purpose, they are not satisfactory in all aspects. Summary of the invention [0003] In order to overcome the shortcomings of the prior art, the presen...

AI Technical Summary

Problems solved by technology

These methods have been found to cause low yield and damage to the surface of photovoltaic cells

Therefore, although the existing methods can generally achieve the desired purpose, they are not satisfactory in all aspects.

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