The organic methylammonium (MA) molecules in the cell were replaced with inorganic elements such as rubidium and cesium. The planar perovskite cells resulting from the research have an efficiency of more than 20%.A group of researchers from Switzerland's Adolphe Merkle Institute (AMI) at the University of Fribourg has developed a methylammonium-free perovskite solar cell with the same levels of efficiency of cells based on perovskite containing methylammonium (MA) molecules. According to a paper published in the journal Science, the scientists have replaced the thermally unstable MA molecules ...Den vollständigen Artikel lesen ...