Invention Grant
- Patent Title: Bipyridine metal complexes for use as light-emitting material
- Patent Title (中): 用作发光材料的联吡啶金属络合物
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Application No.: US12602815Application Date: 2008-06-05
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Publication No.: US08357800B2Publication Date: 2013-01-22
- Inventor: Mohammad Khaja Nazeeruddin , Etienne David Baranoff , Michael Graetzel
- Applicant: Mohammad Khaja Nazeeruddin , Etienne David Baranoff , Michael Graetzel
- Applicant Address: BE Brussels
- Assignee: SOLVAY (Societe Anonyme)
- Current Assignee: SOLVAY (Societe Anonyme)
- Current Assignee Address: BE Brussels
- Agency: Foley & Lardner LLP
- Priority: EP07109876 20070608
- International Application: PCT/EP2008/056954 WO 20080605
- International Announcement: WO2008/148830 WO 20081211
- Main IPC: C07F15/00
- IPC: C07F15/00
Abstract:
The present invention relates to light emitting materials comprising novel ortho-metalated transition metal complexes [C^N]2M[N^N] comprising two orthometalated ligands (C^N ligands) and a neutral bidentate bipyridine ligand (N^N). Surprisingly, it has been found that when the metal binds both orthometalated chelate C^N ligands and a neutral bidentate bipyridine ligand (N^N), these ligands participate in the emission process, thus greatly improving the red emission efficiency of complexes [C^N]2M[N^N]. The present invention further relates to the use of such light emitting materials and an organic light emitting device comprising such light emitting material.
Public/Granted literature
- US20100174078A1 Bipyridine metal complexes for use as light-emitting material Public/Granted day:2010-07-08
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