Shine bright like a nanoaggregate: Highly luminescent inks made from copper-iodine hybrid clusters with aggregation-induced emission

Chinese scientists have turned copper-iodine cluster molecules into aggregated, highly luminescent nanostructures for use in light-emitting diodes (LEDs). The solid-state assemblies made of complexes of the copper-iodine cluster with phosphor-organic compounds as ligands are easily prepared, cheap, and can emit light in many colors, they report. The nanoaggregates can be used as luminescent inks for invisible paintings and color coatings for LEDs.