Photoluminescent 3D printer inks made with crown-ether-stabilised perovskites

By stabilising perovskites in a supramolecular assembly, US researchers have produced effective photoluminescent materials that can be formulated into thin films and 3D printer inks. The supramolecular approach simplifies the synthesis of the perovskites and could open the door to their wider use in light-emitting devices.