A perovskite-CIGS solar cell developed by UCLA Samueli researchers converts 22.4 percent of incoming energy from the sun, a record for this type of cell.
Credit: UCLA Samueli Engineering
Materials scientists from the UCLA Samueli School of Engineering have developed a highly efficient thin-film solar cell that generates more energy from sunlight than typical solar panels, thanks to its double-layer design. The device is made by spraying a thin layer of perovskite – an inexpensive compound of lead and iodine that has been shown to be very efficient at capturing energy from sunlight – onto a commercially available solar cell. The solar cell that forms the bottom layer of the device is made of a compound of copper, indium, gallium and selenide, or CIGS.
The team’s new cell converts 22...
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