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  • Raising performance

     Japo_Japo updated 1 month ago 1 Member · 1 Post
  • Japo_Japo

    Member
    September 10, 2021 at 8:38 pm

    The paper reports the new inorganic perovskite solar cells have a photoconversion efficiency of 11.8%. That means there’s more work ahead for the engineers.

    “We are now trying to optimize this cell – we want to make it more efficient at converting solar energy into electricity,” Dalal said. “We still have a lot of research to do, but we think we can get there by using new combinations of materials.”

    The engineers, for example, replaced the iodine common in perovskite materials with bromine. That made the cells much less sensitive to moisture, solving another problem with standard hybrid perovskites. But, that substitution changed the cells’ properties, reducing efficiency and how well they work in tandem with silicon cells.

    And so the tweaks and trials will continue.

    As they move ahead, the engineers believe they’re on a proven path: “This study demonstrates a more robust thermal stability of inorganic perovskite materials and solar cells at higher temperatures and over extended periods of time than reported elsewhere,” they wrote in their paper. “(These are) promising results in pursuit of the commercialization of perovskite solar cell materials.”

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