In 2009, scientists began with a 3.8% perovskite solar cell. 17 years later, LONGi's silicon-perovskite tandem set a 35.5% world record

LONGi's research team achieves a remarkable 35.5% efficiency in perovskite solar cells, setting a world record and showcasing significant advancements in solar technology since their first iteration in 2009.

Raccontata daeconomictimes.indiatimes.com