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Light-emitting metal iridium complex and organic electroluminescence device prepared from same

A technology of metal complexes and complexes, which is applied in the fields of electric solid devices, electrical components, light-emitting materials, etc., can solve the problems of not meeting the requirements of OLED preparation and reducing the sublimation temperature.

Inactive Publication Date: 2015-12-02
冠能光电材料(深圳)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] Although the above-mentioned chelating auxiliary ligands with smaller molecular weights or smaller conjugated chromophores can lower the sublimation temperature, they still cannot meet the increasing requirements for OLED preparation.

Method used

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  • Light-emitting metal iridium complex and organic electroluminescence device prepared from same
  • Light-emitting metal iridium complex and organic electroluminescence device prepared from same
  • Light-emitting metal iridium complex and organic electroluminescence device prepared from same

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Embodiment 1

[0091] Embodiment 1: Synthesis of luminescent compound containing 2-phenyl-6-trifluoromethylethyl-pyridine auxiliary ligand

[0092]

[0093] According to the above principles of synthetic chemistry, without departing from the scope of the present invention, the following red, green, and blue organometallic iridium compounds composed of fluorine-containing substituted heteroligands and light-emitting ligands were synthesized. The specific listed complexes passed mass spectrometry The molecular weight and fragments of the molecule were verified, as shown in Table 2 below:

[0094] Table 2

[0095]

[0096]

[0097]

[0098] From the numerical value of m / e of above-mentioned mass spectrometry, it is fully proved that the compound synthesized by the present invention is the compound listed in Table 2. In order to achieve excellent device performance, a well-developed organic light-emitting diode will also include a variety of other organic semiconductor materials, f...

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Abstract

The invention discloses a light-emitting metal iridium complex and an organic electroluminescence device prepared from the same. The light-emitting metal iridium complex is characterized in that the structure of the complex is as shown in a formula (1) in the specification, in the formula (1), Ar is an aromatic pentabasic ring or hexahydric ring; n is 1 to 2; X is fluorine-containing alkyl of which the carbon atoms are less than 12 and comprises CF3, CF2CF3, CH2CF3, CF2CF2CF3, CH2CF2CF3, CF(CF3)2, CH(CF3)2, CF2CF(CF3)2, CH2CF(CF3)2; p is a substituted integer of 1-4; L is bidentate coupled light-emitting ligand containing N atoms.

Description

Technical field: [0001] The invention relates to a light-emitting metal iridium complex and an organic electroluminescent device prepared therefrom. Using a fluorine-containing auxiliary ligand and a general-purpose light-emitting ligand in the light-emitting layer to form an improved light-emitting metal iridium complex can be applied to organic light-emitting OLED devices (electromechanical light-emitting devices) to improve the solubility and sublimation evaporation of light-emitting materials. Plating workability is beneficial to the large-scale production of OLED display devices. Background technique: [0002] Organic semiconductor materials are new optoelectronic materials, and its large-scale research originated in 1977 by Hideki Shirakawa, A. Heeger and A. McDiamid jointly discovered doped polyacetylene with conductivity up to copper level. Subsequently, in 1987, C.Tang of Kodak Company invented the organic small molecule light-emitting diode (OLED), and in 1990, R....

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC07F15/00C09K11/06
Inventor 李晓常刘晓璀
Owner 冠能光电材料(深圳)有限责任公司
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