(DOE/National Renewable Energy Laboratory) Scientists at the National Renewable Energy Laboratory (NREL) have fabricated a solar cell with an efficiency of nearly 50%. The six-junction solar cell now holds the world record for the highest solar conversion efficiency at 47.1%, which was measured under concentrated illumination. A variation of the same cell also set the efficiency record under one-sun illumination at 39.2%.

Original source: https://www.eurekalert.org/pub_releases/2020-04/drel-nss041420.php