A fluorescence–phosphorescence dual-emissive Cu₃(pyrazolate)₃ complex with highly tunable emission colours for anticounterfeiting and temperature sensing

Abstract

An anti-counterfeit label and a luminescence thermometer are fabricated by the Cu 3 pyrazolate 3 complex, showing luminescence switching between blue fluorescence and orange or red phosphorescence through modulating excitation energies or temperatures.