Imidazo[1,5-a]pyridine-benzilimidazole conjugated (donor-π-acceptor) greenish-yellow fluorophores and their applications in white light-emitting diodes, acidochromism and anticounterfeiting

This work reports on the design and synthesis of three D-π-A push-pull fluorophores (BPy-1, BPy-2, and BPy-FL) featuring flexible phenyl or rigid and sterically hindered diethylfluorene moieties. The role of...