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Researchers have used a "spin-flip" metal complex to achieve around 130% efficiency in solar cells through a process called singlet fission, producing more energy carriers than photons absorbed. This breakthrough could pave the way for far more powerful solar panels in the future.

A new solar breakthrough may overcome a long-standing efficiency barrier. Researchers used a “spin-flip” metal complex to capture and multiply energy from sunlight through singlet fission. The result reached about 130% efficiency, meaning more energy carriers were produced than photons absorbed. This could lead to much more powerful solar panels in the future.