| 摘要 |
The present invention relates to an organic electroluminescent device comprising: a positive electrode; a negative electrode; and at least one organic layer selected from the group consisting of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer which is laminated between the positive electrode and the negative electrode. In addition, at least one of the at least one organic layer is a phosphorescent light emitting layer comprising a first host and a metal coordination compound type host. |
