Author/Authors :
Yang، نويسنده , , J.P and Jin، نويسنده , , Y.D and Heremans، نويسنده , , P.L and Hoefnagels، نويسنده , , R and Dieltiens، نويسنده , , P and Blockhuys، نويسنده , , F and Geise، نويسنده , , H.J and Van der Auweraer، نويسنده , , M and Borghs، نويسنده , , G، نويسنده ,
Abstract :
We report on white light emission from an organic light emitting diode (OLED) prepared by spin coating. The organic layer is a single layer of polystyrene, in which we incorporate rubrene for orange emission and the phenylene-vinylene trimer, 1,4-bis(1,1-diphenyl-2-ethenyl) benzene (PEB) for blue emission. These two colors blend to white. The Commission Internationale de LʹEclairage coordinates are x=0.30 and y=0.37. When fabricated with an air-stable Al cathode, our white OLED has a quantum efficiency of 0.3%, a current efficiency of 0.9 cd/A and a brightness of 1500 cd/m2.
