In a study researchers from the Ulsan National Institute of Science and Technology (UNIST), Republic of Korea, described a cost-efficient way to produce inorganic-organic hybrid perovskite solar cells (PSCs) that can reach record-breaking efficiencies. PSCs are made of a mixture of organic molecules and inorganic elements within a single crystalline structure, that together capture light and convert it into electricity.
As PSCs can reach a photovoltaic efficiency comparable to silicon solar cells but can be fabricated cheaply and easily, they have attached much attention as next-generation solar cells. Using methaylammonium lead iodide as the perovskite material and lanthanum-doped barium stannate as the electrode, they were able to produce the PSCs under mild conditions of less than 200 °C, much lower than the conventional temperature of over 900 °C.
Furthermore, the new material retains 93 percent of its initial performance after 1,000 hours of exposure to sunlight, showing excellent photostability.
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Researchers study perovskite solar cell
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