Perovskites have always been cheaper to manufacture than conventional solar cells made from silicon, but not nearly as efficient. Researchers at Stanford may now have found a way to make them more durable, and the inspiration comes from the eyes of insects.
“Perovskites are promising, low-cost materials that convert sunlight to electricity as efficiently as conventional solar cells made of silicon,” says Reinhold Dauskardt, a professor of materials science and engineering.
In testing, the improved perovskites are more resilient to mechanical stresses and thus far more resistant to fracture. Even after exposing them to temperatures of 185 degrees Fahrenheit and 85% relative humidity for six weeks, they were still efficient.
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