Invention Grant
- Patent Title: Material having indolocarbazole compound for phosphorescent light-emitting element and organic electroluminescent element using the same
- Patent Title (中): 具有磷光发光元件的吲哚咔唑化合物的材料和使用其的有机电致发光元件
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Application No.: US13256363Application Date: 2010-03-25
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Publication No.: US08962158B2Publication Date: 2015-02-24
- Inventor: Masaki Komori , Takahiro Kai , Toshihiro Yamamoto
- Applicant: Masaki Komori , Takahiro Kai , Toshihiro Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
- Current Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-085638 20090331
- International Application: PCT/JP2010/055223 WO 20100325
- International Announcement: WO2010/113755 WO 20101007
- Main IPC: H01L51/54
- IPC: H01L51/54 ; C07D487/04 ; C07D403/14 ; C09K11/06 ; H01L51/00 ; H05B33/14 ; H01L51/50

Abstract:
Provided is an organic electroluminescent device (organic EL device), which has improved luminous efficiency, has sufficient driving stability, and has a simple construction. The organic EL device of the present invention is an organic electroluminescent device, including a light-emitting layer and a hole-transporting layer between an anode and a cathode laminated on a substrate, in which the light-emitting layer contains a phosphorescent light-emitting dopant and an indolocarbazole compound that serves as a host material, or alternatively, the hole-transporting layer contains an indolocarbazole compound. The indolocarbazole compound is represented by the following formula (1). In the formula: A1's each represent an aromatic hydrocarbon group or an aromatic heterocyclic group, provided that at least one of A1's has a fused ring structure; and R1's each represent a hydrogen atom, an alkyl group, an alkoxy group, or an acyl group.
Public/Granted literature
- US20120001165A1 MATERIAL FOR PHOSPHORESCENT LIGHT-EMITTING ELEMENT AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME Public/Granted day:2012-01-05
Information query
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