Molecular movie exposes perovskite solar cell’s inner workings

A ‘molecular movie’ has revealed how perovskite solar cells responds to light. The work could help to explain why these structures are so adept at converting light into electricity. Silicon solar devices remain the dominant market force in photovoltaics, accounting for around 94% of device production in 2016. Although other cells have failed to surpass silicon’s performance, perovskites offer a promising alternative.