Abstract: |
The invention relates to an organic electroluminescence device, comprising an anode layer, an organic functional layer and a cathode layer in order, which is characterized in that a cathode decorative layer made of the alkali metal salt of nitrogenous fragrant phenol is also included between said organic functional layer and the cathode layer, wherein, the alkali metal salt is preferredly a metal cesium salt. The invention has gotten higher device performance when it is used in conjunction with the high work function metallic cathode, through the development of the cathode interface decorative material of membrane that has a high rejection membrane electron injection ability. |