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US09382206B2 Nitrogen-containing aromatic heterocyclic derivative and organic electroluminescence device using the same 有权
含氮芳族杂环衍生物和使用其的有机电致发光器件

Nitrogen-containing aromatic heterocyclic derivative and organic electroluminescence device using the same
Abstract:
A nitrogen-containing aromatic heterocyclic derivative represented by the following formula, wherein X1 to X3 are a single bond, CRaRb, NRc, an oxygen atom or a sulfur atom, and when all of X1 to X3 is a single bond, at least one of Ara, Arb and Arc is an aryl group having 6 to 20 ring carbon atoms substituted with a heteroaryl group, an aryloxy group or a heteroaryloxy group, or a substituted or unsubstituted heteroaryl group having 5 to 20 ring atoms.
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