Large-area flexible film solar cell and manufacturing method thereof

Abstract

The invention discloses a large-area flexible film solar cell and a manufacturing method thereof. A disconnection protective film is treated to be velvet, and then each layer of a solar cell and a packaging layer are formed on the surface of the velvet disconnection protective film. The disconnection protective film is used as a carrier for manufacturing the flexible film solar cell on a rigid substrate. According to the method disclosed by the invention, the uniformity and controllability of stress distribution of the disconnection protective film can be well improved, the flatness and dimension stability of the disconnection protective film are largely improved, the light scattering coefficient of the disconnection protective film can be increased and the photoelectric conversion efficiency can be also improved.

Description

technical field [0001] The invention relates to the field of photoelectric technology, in particular to a large-area flexible thin-film solar cell and a manufacturing method thereof. Background technique [0002] Energy is the driving force for the development of human society and an important material basis for the development of the national economy and the improvement of people's living standards. Conventional energy (mainly fossil energy such as coal, oil, and natural gas) widely used at present is limited, and years of excessive development and utilization have caused serious environmental problems, restricting economic and social development. Therefore, the development of renewable energy is one of the key measures related to the national sustainable development strategy. [0003] Among various renewable energy sources, solar photovoltaic power generation technology is the fastest-growing and most cutting-edge research field in the field of solar energy utilization in...

AI Technical Summary

Problems solved by technology

In addition, it is difficult to ensure that the large-area flexible substrate is laid flat on the surface of the rigid substrate throughout the entire device manufacturing process, and the flexible substrate can be easily peeled off without damaging the battery after the process is completed.

Even with such materials, such as polyimide, which is considered to be the best performance, it is impossible to stay completely flat on the rigid substrate from the beginning to the end, and it is easy to produce severe protrusions or wrinkles during the battery manufacturing process

Especially in the manufacturing process of large-area flexible thin-film solar cells, such non-negligible protrusions or wrinkles of the flexible substrate not only greatly affect the uniformity and consistency of thin-film deposition, but also form the internal cascade laser scribing process. Cannot be implemented reliably and performance-satisfactorily

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