Perovskite solar module achieves 21.44% efficiency via new passivation tech

Researchers have developed a novel passivation process for formamidinium lead iodide perovskite films, which reportedly resulted in solar cells with 23. 69% power conversion efficiency, and modules with 21. 44% certified efficiency. After 1000?hours, the hetero-polytypic passivated devices maintained 92% of their initial efficiency, outperforming untreated devices. An international research team led by the Gwangju Institute of Science and Technology (GIST) in South Korea developed a passivation process for formamidinium lead iodide (FAPbI3) perovskite films, which it demonstrated in solar cells ...

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