- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING SAME
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An aromatic amine derivative represented by formula (1): wherein L1, L2, Ar1, Ar2, R1, R2, a, b, and Q are as defined in the specification. An organic electroluminescence device having at least one organic thin film layer which includes the aromatic amine derivative has high emission efficiency and long lifetime.
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Paragraph 0191; 192
(2014/08/19)
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