The following submission statement was provided by /u/NickDanger3di:

>The researchers said that achieving greater than 30 per cent efficiency with the four-terminal tandem device marked “a big step in accelerating the energy transition” and would improve energy security by reducing fossil fuel dependency.

>“This type of solar cell features a highly transparent back contact that allows over 93 per cent of the near infrared light to reach the bottom device,” said Dr Mehrdad Najafi from the Netherlands Organisation for Applied Scientific Research (TNO).

>“This performance was achieved by optimizing all layers of the semi-transparent perovskite solar cells using advanced optical and electrical simulations as a guide for the experimental work in the lab.”

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/xukl1z/solar_power_world_record_broken_with_miracle/iqvwnei/