Enhanced brightness of organic light emitting diodes based on Mg:Ag cathode usin

Different thicknesses of cesium chloride (CsCl) and various alkali metal chlorides were inserted into organic light-emitting diodes (OLEDs) as electron injection layers (EILs). The basic structure of OLED is indium tin oxide (ITO)/N,N'-diphenyl-N,N'-bis(1-napthyl-phenyl)-1.1'-biphenyl-4.