| 摘要 |
Disclosed is an organic electroluminescent device (1) comprising at least an anode (12), a cathode (14) and an organic light-emitting layer (13) interposed between the electrodes, wherein the organic light-emitting layer (13) contains one or more host materials, a hole-trapping dopant and an electron-trapping dopant. By having the hole-trapping dopant and the electron-trapping dopant coexist in the organic light-emitting layer, the organic electroluminescent device (1) can have a longer life. |
