| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stacked organic electroluminescent device with high luminance, high efficiency and long lifetime. <P>SOLUTION: A stacked organic electroluminescent device and a method of making such device is disclosed. The device comprises an anode, a cathode, at least two organic electroluminescent units disposed between the anode and the cathode, and a doped organic connector disposed between each adjacent organic electroluminescent unit. The organic electroluminescent unit comprises at least one organic hole-transporting layer and one organic electron-transporting layer. The doped organic connector comprises at least one n-type doped organic layer or one p-type doped organic layer, or combinations of layers thereof. <P>COPYRIGHT: (C)2004,JPO |
