| 摘要 |
An organic EL (Electroluminescence) device includes a Li2O layer which is metallic oxide at an interface of a first cathode with an organic luminescent layer, and the Li2O layer has a concentration gradient in which a concentration becomes high at a side of the interface with the organic luminescent layer. Therefore, it is possible to obtain a high rectification ratio, to make a driving voltage low, and to make a luminescent efficiency high. |
