Stabilizing ligand enables 22% efficiency in all-inorganic perovskite cells

An international team of physicists, chemists and electronic engineers reports that a stabilizing ligand enables all-inorganic perovskite cells with an efficiency of up to 22%. In their study, published in the journal Nature, the group came upon the idea of introducing para-toluenesulfonyl hydrazide (PTSH) as a stabilizing ligand to promote the formation of films during the crystallization process.