CESIUM DOPING

Cesium Containing 2D Ruddlesden-Popper Perovskite Solar Cell

Ever wondered why some solar panels degrade faster than your smartphone battery? Traditional 3D perovskite cells—the rockstars of solar efficiency—have been crashing and burning (literally) when exposed to humidity and heat. Last month, a California solar farm reported 12% efficiency drops after just six months of coastal operation. Ouch.