发明名称 |
ORGANIC ELECTROLUMINESCENT ELEMENT |
摘要 |
Disclosed is a useful organic EL device which comprises a phosphorescent light-emitting layer and is endowed with improved luminous efficiency and high driving stability. Also disclosed is a hole-transporting material suitable for use in the phosphorescent light-emitting device. The hole-transporting material is a triptycene derivative which has substituents at the 9- and 10-positions and is substituted with an aromatic group containing at least one diarylamino group (-ArNAr 2 ). The organic EL device contains the triptycene derivative in at least one organic layer selected from the group of a phosphorescent light-emitting layer, a hole-transporting layer, an electron-blocking layer, and an exciton-blocking layer. The diarylamino group (-NAr 2 ) may be fused to form an aromatic heterocyclic group such as a carbazolyl group. |
申请公布号 |
KR20110119713(A) |
申请公布日期 |
2011.11.02 |
申请号 |
KR20117019086 |
申请日期 |
2010.01.15 |
申请人 |
NIPPON STEEL CHEMICAL CO., LTD. |
发明人 |
SUDA MITSURU;KAI TAKAHIRO;YAMAMOTO TOSHIHIRO |
分类号 |
C09K11/06;C07D209/86;H01L51/50 |
主分类号 |
C09K11/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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