Thin film solar cell panel and preparation method of same

Abstract

The invention discloses a thin film solar cell panel and a preparation method of the thin film solar cell panel. The thin film solar cell panel comprises a substrate, a first electrode located on the substrate, a photoelectric conversion layer located on the first electrode, a second electrode located on the photoelectric conversion layer and a gate electrode arranged on the second electrode. The substrate is an extremely thin glass substrate with the thickness of 0.1-1mm, wherein the extremely thin glass substrate is bendable, the minimum bending radius of the extremely thin glass substrate is less than 10cm, and the first electrode is continuously arranged on the substrate in the forming process. The thin film solar cell panel and the preparation method of the thin film solar cell panel improve light-permeating performance of the thin film solar cell panel, ensure that the thin film solar cell panel can be conveniently used for manufacturing bent solar cell modules, improve preparation processes of the bendable think film solar cell panel, avoid increasing extra costs, and greatly increase universal applicability of equipment and the preparation method when the equipment and the preparation method are applied to the bendable thin film solar cell panel.

Description

technical field [0001] The invention relates to the field of solar photovoltaic products, in particular to a thin-film solar panel and a preparation method thereof. Background technique [0002] Thin-film solar cells have experienced a long development process from invention to large-scale commercialization. In 1976, the first amorphous silicon thin-film solar cell was successfully developed by Radio Corporation of America (RCA). Since the mid-1990s, with the continuous improvement of semiconductor manufacturing equipment and manufacturing technology, efficient stacking Silicon-based thin-film solar cells have achieved large-scale commercial production, and their light-absorbing materials have developed from the initial amorphous silicon homogeneous structure to a heterojunction structure composed of amorphous silicon, polycrystalline silicon and single crystal silicon. In addition to silicon-based thin-film solar cells, thin-film solar cells based on inorganic semiconducto...

AI Technical Summary

Problems solved by technology

[0005] Most polymer substrates do not have light transmission and high temperature resistance at the same time, that is, they cannot withstand The above process temperature, while the thickness of the glass substrate selected by the existing thin-film solar cell technology is generally greater than 3mm, which is not bendable, and cannot be directly used for processing and making bendable solar cells.

In addition, most of the existing thin-film solar cell manufacturing equipment and processes are built on flat substrates, such as flat float glass, which makes it very difficult to directly manufacture thin-film solar cells with a certain curvature

If thin-film solar cells are to be processed and manufactured by uniform coating on curved substrates, major changes to coating equipment and processes are required, which will not only greatly increase the cost, but also have different shapes due to different curved structure surfaces. and bending radians, resulting in great limitations in the adaptability of the equipment and process to different products

Based on the above reasons, the application of thin-film solar cells in the field of bendable products has not been well developed.

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