[Object]
To provide a wide band-gap material capable of forming a stable amorphous thin film and an organic electroluminescent device using such a compound and having a high light emission efficiency.
[Solution]
It has been found that a novel oligophenylene derivative, which is applicable as an organic electroluminescent material, can be produced efficiently using a cross-coupling reaction. It has also been found that a highly-efficient blue phosphorescent light-emitting device can be produced using this compound. The present invention is based on these findings.
提供一种能够形成稳定非晶态薄膜的宽禁带材料,以及使用这种化合物并具有高发光效率的有机电致发光器件。
已经发现,一种新型的寡苯基衍
生物可以通过交叉偶联反应有效地制备,该衍
生物可用作有机电致
发光材料。还发现,使用这种化合物可以制造出高效蓝色
磷光发光器件。本发明基于这些发现。