| 摘要 |
<p>The present invention provides a compound of formula (I) for an organic electroluminescent device: wherein X and Y are each independently selected for the group consisting of an alkyl substituted, aryl substituted or unsubstituted carbazole, indolocarbazole, triphenylsilyl and diphenylphosphine oxide represented by formula (A), (B), (C), (D) or (E).</p> |
