Title:
An organic electroluminescence element
Document Type and Number:
Japanese Patent JP5914500
Kind Code:
B2
Abstract:
Provided is an organic electroluminescent device (organic EL device) which has improved luminous efficiency and a simple configuration, while ensuring sufficient driving stability. This organic electroluminescent device includes a light-emitting layer between an anode and a cathode that are laminated on a substrate. The light-emitting layer contains a phosphorescent light-emitting dopant, and a carbazole compound represented by the following formula (1) as a host material. In the formula (1), E represents oxygen or sulfur, and R 1 to R 6 each represent hydrogen, an alkyl group, a cycloalkyl group, or an aromatic group represented by the formula (2). In the formula (2), X represents CR 9 or nitrogen.
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Inventors:
Tadashi Tadashi
Takahiro Kai
Takahiro Kai
Application Number:
JP2013533559A
Publication Date:
May 11, 2016
Filing Date:
July 19, 2012
Export Citation:
Assignee:
Nippon Steel & Sumikin Chemical Co., Ltd.
International Classes:
H01L51/50; C07D405/14
Domestic Patent References:
| JP2011509247A |
Foreign References:
| WO2008029729A1 | ||||
| WO2009008100A1 |
Attorney, Agent or Firm:
Kazuya Sasaki
Katsuo Naruse
Tomohiro Nakamura
Eiichi Sano
Katsuo Naruse
Tomohiro Nakamura
Eiichi Sano
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