GAS PHASE TREATMENT METHOD FOR MODIFYING THE SURFACE OF PEROVSKITE MATERIALS
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United States of America
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Mar 20, 2025
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Sep 3, 2024
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Sep 3, 2024
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The invention relates to a gas phase treatment method for modifying the surface of perovskite materials, which belongs to the field of preparation technology of perovskite material. The details are as follows: the perovskite material is exposed to a hydrogen halide vapor environment at atmospheric pressure. Hydrogen halide can effectively fill the defect sites on the perovskite surface and form stable strong chemical bonds with the perovskite surface. The modified perovskite solar cells based on the invention have enhanced resistance to high temperature, high humidity and strong light. The simulation test shows that the modified photoelectric device can work stably outdoors for nearly 10 years. The invention addresses the issue of poor stability commonly associated with halide perovskite materials, and it offers a low-cost process, which is expected to promote the industrialization and commercialization of perovskite solar cells.
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