HIGH BRIGHTNESS AND LOW VOLTAGE OPERATED LEDS BASED ON INORGANIC SALTS AS EMITTERS AND CONDUCTIVE MATERIALS AS CATHODIC CONTACTS

摘要

Solid-state light-emitting diodes (LEDs) are fabricated based on an amorphous or nanocrystalline film of Ru(bpy)3(ClO4)2(bpy = 2,2'-bipyridine) about 100 nm thick on indium tin oxide (ITO) and printed on stable conductive material including low melting point alloys (Ga:In, Ga:Sn and Bi:In:Pb:Sn) and ITO as cathodic contact. Devices with the structure of ITO(10 at 4.0 V) centered at 660 nm. This new method significantly simplifies the fabrication of an electroluminescence cell and has potential application in the production of OLEDs by inkjet or microcontact printing. LEDs based on Ru(bpy)3(ClO4)2, Ru(phenanthroline)3(ClO4)2, Os(bpy)3(PF6)2, and Tris(8-hydroxy-quinoline)aluminum(Alq3) are also presented.