Solar cell module and preparation method thereof

By designing the perovskite layer and the second electrode structure that are not directly in contact in the solar cell module, the problem of efficiency reduction caused by the direct contact of the perovskite structure and the electrode is solved, and higher stability and performance are achieved.

CN119855366APending Publication Date: 2025-04-18HUANENG CLEAN ENERGY RES INST +1
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Patent Information

Application Number
CN202510011348.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

In the preparation of large-area modules, the perovskite structure is in direct contact with the electrode, resulting in the problem of device efficiency degradation.

Method used

A solar cell module is designed, including a substrate, a plurality of sub-cells in series, wherein the sub-cells include a first electrode, a hole transport layer, a perovskite layer, an electron transport layer, and a second electrode, and there is no direct contact between the second electrode and the perovskite layer.

Benefits of technology

By isolating the perovskite layer and the second electrode, the diffusion of metal to the perovskite and corrosion of the metal by the perovskite component is avoided, the stability and performance of the module are improved, and the device efficiency is improved.

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Abstract

The invention provides a solar cell module and a preparation method thereof, and the solar cell module comprises a substrate which is provided with a first surface; the plurality of serially connected sub-cells are located on the first surface, each sub-cell comprises a first electrode, a hole transport layer, a perovskite layer, an electron transport layer and a second electrode, and the first electrode is located on the first surface; in the direction from the substrate to the first electrode, the hole transport layer, the perovskite layer, the electron transport layer and the second electrode are sequentially stacked on the side, away from the substrate, of the first electrode, and the second electrode is located on one side of the perovskite layer at intervals. According to the solar cell module, the metal electrode is prevented from being in direct contact with the cross section of the perovskite layer, so that diffusion of metal ions into the perovskite layer and corrosion of components in the perovskite layer to the metal electrode are not caused, the perovskite layer in the module has more excellent barrier property, the solar cell module has more excellent stability, and the service life of the solar cell module is prolonged. And the performance of the solar cell module is improved.
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