High performance yellow light-emitting organic electrophosphorescent devices based on Re(I) complex

摘要

Yellow organic light-emitting devices (OLEDs) with (2,3-diphenylpyrazino [2,3-f] [1,10] phenanthroline) Re(CO)_3Br (Re-Dppp) doped CBP as emissive layer were studied. It is found experimentally that Re-Dppp based yellow OLEDs possess high electroluminescent efficiency and brightness: a maximum brightness of 6249 cd/m~2 at 15 V and a highest current efficiency of 14.2cd/A with a brightness of 180 cd/m~2 occurring at 1.3mA/cm~2 are achieved, which indicate that Re(I) complexes have a potential application in commercialized PMOLEDs.