High-efficiency stable large-area semitransparent perovskite solar cell and preparation method thereof

Abstract

The invention relates to the technical field of perovskite solar cells, in particular to a high-efficiency stable large-area semitransparent perovskite solar cell and a preparation method thereof. Thehigh-efficiency stable large-area semitransparent perovskite solar cell comprises a conductive substrate layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer, an ALD seed crystal layer, an ALD atomic layer and a TCO transparent electrode are sequentially formed on the surface of the conductive substrate layer, and the ALD seed crystal layer and the ALD atomic layer form a sputtering buffer double layer. According to the high-efficiency stable large-area semitransparent perovskite solar cell provided by the invention, the efficiency and the stability of the large-area semitransparent perovskite solar cell are greatly improved under the condition that the active area of the cell is relatively large, and technical reserve is provided for commercialization of the large-area semitransparent perovskite solar cell in the future; and the solar cell can be applied to the fields of building photovoltaic integration, laminated cells and the like.

Description

technical field [0001] The present application relates to the technical field of perovskite solar cells, in particular to an efficient and stable large-area translucent perovskite solar cell and a preparation method thereof. Background technique [0002] Large-area translucent perovskite solar cells can be applied to building integrated photovoltaics (BIPV) due to their simple preparation process, low cost and light transmittance, or as top cells stacked with silicon, copper indium gallium selenide and other cells. layer has received more and more attention and research. However, to date, the development of large-area semitransparent perovskite solar cells has been limited by their low power conversion efficiency, poor stability, and relatively small active area. [0003] At present, due to the thickness of the interface layer of large-area translucent perovskite solar cells at the nanometer level, it is difficult to prepare uniform, flat, and pinhole-free films in the rang...

AI Technical Summary

Problems solved by technology

However, to date, the development of large-area semitransparent perovskite solar cells has been limited by their low power conversion efficiency, poor stability, and relatively small active area.

[0003] At present, due to the thickness of the interface layer of large-area translucent perovskite solar cells at the nanometer level, it is difficult to prepare uniform, flat, and pinhole-free films in the range of several nanometers when processing large-area interface layer films by solution. interface layer, resulting in a reduction in its power conversion efficiency

At the same time, the preparation of transparent electrodes with low square resistance and high transmittance usually adopts the magnetron sputtering process. The active layer causes damage, affecting the efficiency and yield of the battery

In addition, the performance of the battery will be affected by adverse factors such as external moisture, air, and temperature during operation.

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