Computational study on the luminescence quantum yields of terbium complexes with 2,2'-bipyridine derivative ligands.

Terbium complexes are widely used as luminescent materials because of their bright green emission and sharp emission spectra and the independence of their emission wavelengths from the surrounding environment. The luminescence quantum yield (LQY), however, heavily depends on the surroundings, and an appropriate ligand design is indispensable. In this study, we focus on a Tb complex coordinated by a 2,2'-bipyridine derivative ligand (L1), whose LQY is almost zero at room temperature [M.