Invention Grant
- Patent Title: Organometallic complex, light-emitting element, light-emitting device, electronic device, and lighting device
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Application No.: US15156679Application Date: 2016-05-17
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Publication No.: US10170710B2Publication Date: 2019-01-01
- Inventor: Yui Yamada , Hideko Inoue
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2015-102410 20150520
- Main IPC: C07F15/00
- IPC: C07F15/00 ; H01L51/00 ; C09K11/06 ; H01L27/32 ; H01L51/52 ; C23C16/42 ; C07D471/04 ; H01L27/12 ; H01L51/50

Abstract:
Provided is an organometallic complex which emits light with a short wavelength and has high emission efficiency and high heat resistance. The organometallic complex includes a central metal; and a first ligand, a second ligand, a third ligand, and a fourth ligand which are coordinated to the central metal. The first ligand includes a triazole skeleton including nitrogen bonded to the central metal. The second ligand includes an indolo[3,2-b]carbazole skeleton whose 6-position is bonded to the central metal or a pyrido[2,3-b:6,5-b′]diindole skeleton whose 6-position is bonded to the central metal. The third ligand includes a benzene skeleton whose carbon is bonded to the central metal. The fourth ligand includes a pyridine skeleton whose nitrogen is bonded to the central metal or a benzene skeleton whose carbon is bonded to the central metal.
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