Aromatic amine derivative and electroluminescence device using the same
AssigneeIdemitsu Kosan Co., Ltd.
InventorsNobuhiro Yabunouchi, Tetsuya Inoue
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Abstract
Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at least one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.
Claims21
An aromatic amine derivative represented by the following formula (5):
- wherein at least one of Ar7 to Ar9 is represented by the following formula (3):
- wherein R4 to R6 each are a hydrogen atom;
- X is a sulfur atom or an oxygen atom;
- f and h each are an integer of 0 to 4;
- g is an integer of 0 to 3;
- and
- i is an integer of 1 to 3;
- in formula (5), among Ar7 to Ar9, a group which is not represented by formula (3) is a substituted or non-substituted aryl group selected from the group consisting of phenyl, 1-naphthyl, 2-naphthyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, p-terphenyl-4-yl, p-terphenyl-3-yl, p-terphenyl-2-yl, m-terphenyl-4-yl, m-terphenyl-3-yl, m-terphenyl-2-yl, and fluorenyl;
- with the proviso that when one of Ar7 to Ar9 is Formula 3 and when X is a sulfur atom the remaining two Ar groups cannot both be phenyl.
Dependencies are inferred from the claim text.