Invention Grant
- Patent Title: Organic electroluminescent materials and devices
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Application No.: US13542868Application Date: 2012-07-06
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Publication No.: US09670404B2Publication Date: 2017-06-06
- Inventor: Chuanjun Xia , Bin Ma , Alan DeAngelis
- Applicant: Chuanjun Xia , Bin Ma , Alan DeAngelis
- Applicant Address: US NJ Ewing
- Assignee: UNIVERSAL DISPLAY CORPORATION
- Current Assignee: UNIVERSAL DISPLAY CORPORATION
- Current Assignee Address: US NJ Ewing
- Agency: Duane Morris LLP
- Main IPC: H01L51/54
- IPC: H01L51/54 ; C09K11/06 ; C07F15/00 ; H01L51/00 ; H05B33/14 ; H01L51/50

Abstract:
Compounds comprising the formula L1L2MX wherein L1, L2, and X are distinct bidentate ligands that form an octahedral complex on the metal M, wherein M is a metal with an atomic weight greater than 40. Compounds of this formula are sublimated more facilely than octahedral metal complexes where L1, L2, and X are not distinct bidentate ligands. Organic light emitting devices are also described wherein the emissive layer may comprise a host material containing an emissive molecule of formula L1L2MX, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including iridium complexes of the formula L1L2IrX wherein L1, L2, and X are distinct bidentate ligands.
Public/Granted literature
- US20130328019A1 METAL COMPLEX WITH THREE DIFFERENT LIGANDS Public/Granted day:2013-12-12
Information query
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