Transition metal complexes with tripodal ligands and the use thereof in OLEDs

A technology of metal complexes and ligands, applied in the direction of indium organic compounds, rhodium organic compounds, platinum group organic compounds, etc., can solve the problem that it is impossible to obtain triple coordination of tripod ligands, and achieve improved device performance, The effect of low voltage and good stability

Inactive Publication Date: 2017-07-14
UDC IRELAND
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

It was demonstrated that by applying conventional and literature known reaction conditions, starting materials and reagents, it is not possible to obtain triple coordination of cyclometallated potential tripodal ligands, at least not without a specific and newly established synthesis

Method used

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  • Transition metal complexes with tripodal ligands and the use thereof in OLEDs
  • Transition metal complexes with tripodal ligands and the use thereof in OLEDs
  • Transition metal complexes with tripodal ligands and the use thereof in OLEDs

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example

[0158]

[0159] Other suitable hole injection materials are described in US2010 / 0219400, US2015 / 0073142 and US2015 / 0102331, where the following material is an example of a preferred hole injection material:

[0160] Preferably doped with MoO 3 , F4-TCNQ or NDP-9, more preferably doped with NDP-9.

[0161] The dopant NDP-9 is commercially available and is described, for example, in EP 2 180 029.

[0162] Other suitable hole injecting materials are the following materials:

[0163]

[0164] Other compounds suitable as hole-injecting materials are mentioned, for example, in US 2010 / 0044689 and US 2014 / 0217392, such as the following compounds doped with p-dopants:

[0165] Suitable p-dopants are mentioned below in relation to the hole-transporting layer. An example of a suitable p-dopant is MoO 3 , F4-TCNQ or NDP-9.

[0166] Other compounds suitable as hole-injecting materials are mentioned, for example, in US 2010 / 0219400, US 2015 / 0073142 and US 2015 / 0102331, such ...

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Abstract

The application relates to transition metal complexes with tripodal ligands and the use thereof in OLEDs. The present invention relates to metal complexes of the general formula L 1 ML 2 (I), wherein M is selected from Ir and Rh, L 1 is a ligand of formula L 2 is a ligand of formula to OLEDs (Organic Light-Emitting Diodes) which comprise such complexes, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a metal complex in OLEDs, for example as emitter, matrix material, charge transport material and / or charge or exciton blocker.

Description

technical field [0001] The present invention relates to metal complexes with cyclometallated tripod ligands; OLEDs (organic light emitting diodes) comprising such complexes; devices comprising such OLEDs selected from the group consisting of: lighting elements, fixing Visual display units and mobile visual display units; use of such metal complexes in OLEDs, for example as emitters, matrix materials, charge transport materials and / or charge or exciton blockers. Background technique [0002] Organic light emitting diodes (OLEDs) take advantage of the propensity of materials to emit light when they are excited by an electric current. OLEDs are gaining attention as an alternative to cathode ray tubes and liquid crystal displays for the manufacture of flat-panel visual display units. Due to the extremely compact design and inherently low power consumption, devices comprising OLEDs are particularly suitable for mobile applications, such as those in cell phones, smartphones, digi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/30H01L51/46H01L51/54
CPCC07F15/0033C09K11/06C09K2211/185H10K85/342Y02E10/549C09K11/025C09K2211/1007C09K2211/1014C09K2211/1029H10K50/11H10K2101/10C07F19/00C07F15/0073H10K10/00H10K30/00H10K50/00
Inventor 伊洛娜·施滕格尔
Owner UDC IRELAND
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