| 摘要 |
PROBLEM TO BE SOLVED: To provide a benzofluorenylamine compound having a more excellent hole transportation characteristic than conventional known compounds and to provide a material for an organic EL, having high efficiency and durability with using the benzofluorenylamine compound.SOLUTION: A benzofluorenylamine compound represented by the general formula (1) is used. (1), where each Rand Rindependently represents a substituent selected from a biphenylyl group, a terphenylyl group and a benz[a]fluorenyl group which may have a methyl group, each Rand Rindependently represents a hydrogen atom or a methyl group. |
