Science Editor’s Summary — Many inorganic perovskites can show strong photoluminescence, including ones based on hafnium and zirconium halides, but these compounds are often air and water-sensitive. Zhu et al. extend a crown ether–assisted supramolecular assembly approach to guide and stabilize the assembly of octahedral [HfBr6]2– octahedral centers. Solid powders of (18C6@K)2HfBr6 exhibited 96% photoluminescence quantum yield for blue emission, and a zirconium analog had a photoluminescence quantum yield of 83% for green emission. Addition of a polymer-created solution‐processable inks for printing luminescent thin films and structures. — PDS
Check the full publication here: https://doi.org/10.1126/science.adi4196