Abstract Cationic blue-emitting complexes with (2, 4-difluoro) phenylpyridine and different 1, 2, 3-triazole ligands are synthesized with different counterions. The influence of the substituents on the triazole ligand is investigated as well as the influence of the counterions. The substituents do not change the emission energy but, in some cases, slightly modify the excited-state lifetimes and the emission quantum yields. The excited-state lifetimes, in ...
