The earliest perovskites worked for only a few minutes or hours, but today they have a lifespan of several months. However, the material currently struggles with stability, in part because temperature sensitivity causes them to degrade relatively rapidly. Perovskites have made leaps and bounds in their efficiency, growing from 3% in 2009 to over 25% today. Perovskites are naturally occurring minerals, but they also represent lab-made crystalline structured materials that imitate the natural minerals’ shape. The flexible, lightweight cells are hailed for their numerous uses, like on low-load roofs, in aviation, wearables, and rapid delivery and rollout in disaster situations. They are actively being researched worldwide for their ability to be manufactured at scale as readily printable materials that can be deposited as paper-thin solar cells. Perovskites are defined by their crystalline structure. The project was conducted in partnership with University of Colorado, Boulder, and the University of California, San Diego.Ī new architectural structure enabled the perovskite solar cell to demonstrate a certified 24% efficiency, while retaining 87% of its original output capability after 2,400 hours of operation at 55 degrees Celsius. Published in the journal Nature, researchers at the National Renewable Energy Laboratory (NREL) posted results of a new perovskite solar cell that achieved breakthrough levels of stability and efficiency for the photovoltaic material.
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