Organic light-emitting devices using ruthenium (II) (4,7-diphenyl-1,10-phenanthroline)3 as dopant

The light emitting devices using ruthenium(II)(4,7-diphenyl-1,10-phenanthroline)3 ([Ru(dphphen)3]2+) complex as dopant and emitter in poly(N-vinylcarbazole) (PVK)-based blend matrix have been studied in different structures. In comparison with the indium-