Perovskite solar cell, production method and perovskite cell assembly

Abstract

The embodiment of the invention provides a perovskite solar cell, a production method and a perovskite cell module, and belongs to the technical field of photovoltaics. The perovskite solar cell specifically comprises a substrate, and a conductive layer, a first carrier transport layer, a perovskite absorption layer, a fluorinated organic compound layer, a second carrier transport layer and an electrode which are sequentially formed on the substrate, wherein the fluorinated organic compound forming the first fluorinated organic compound layer includes a polar group, and the polar group includes at least one of a nitrogen atom, an oxygen atom, a sulfur atom, and a phosphorus atom. According to the embodiment of the invention, the first fluorinated organic compound layer can protect the perovskite absorption layer by utilizing the advantage of high hydrophobicity of the fluorinated organic compound; the perovskite absorption layer is prevented from being invaded by external water vapor,ion migration in the perovskite absorption layer can be limited, the interface defect of the perovskite absorption layer is passivated, and the stability of the perovskite solar cell is improved.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a perovskite solar cell, a production method of the perovskite solar cell and a perovskite cell component. Background technique [0002] Perovskite solar cells have attracted extensive attention due to their high photoelectric conversion efficiency and low cost. [0003] In the prior technology, because the perovskite material is easy to degrade under the condition of water and oxygen environment, coupled with the phase defects, interface defects and ion migration inside the perovskite material, it is easy to cause the stability of the perovskite solar cell to be relatively low. Difference. Therefore, the following methods are generally required to improve the stability of perovskite solar cells: one method is to use device packaging to prevent water and oxygen from invading the interior of perovskite solar cells, and the other is to use passivation reagents to reduce calc...

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Problems solved by technology

[0004] However, device packaging can only prevent the finished battery from the invasion of water and oxygen, but the water vapor absorbed during the battery preparation process cannot be avoided. Although the commonly used passivation reagents can reduce the internal defects of perovskite materials, they mostly contain hydrophilic groups. group, the resistance to humidity is limited, which is not conducive to obtaining perovskite solar cells with high stability

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