New Red Electroluminescent Devices Using Tris(2,2′-bipyridine) Ruthenium (II) Hexafluorophosphate as Emitter

Publisher Website
Google Scholar
Abstract
A new ruthenium complex, tris (2,2′-bipyridine) ruthenium (II) hexafluorophosphate [Ru(bpy)3(PF6)2], was synthesized. Two single-layer electroluminescent devices with an indium-tin oxide (ITO) anode and a Mg cathode were fabricated, one with the newly synthesized material and the other with the known tris (2,2′-bipyridine) ruthenium (II) chloride [Ru(bpy)3Cl2] as emitting materials. The efficiency of the electroluminescent device with the new emitting material [Ru(bpy)3(PF6)2] was found to be much higher than that with [Ru(bpy)3Cl2]. The efficiency of the devices is influenced by the anion size of the emitting materials.