Acenaphthene organic electroluminescent compounds and organic electroluminescent device thereof

A compound and electroluminescence technology, applied in organic chemistry, electro-solid devices, electrical components, etc., can solve the problems of charge imbalance in the light-emitting layer, reduce device efficiency, difficult electron flow, etc., and achieve high luminous purity and good thermal stability. , the effect of high luminous efficiency

Inactive Publication Date: 2018-01-16
SHANGHIA TAOE CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of CBP that holes are easy to transport and electrons are difficult to flow, the charge in the light-emitting layer is unbalanced, which reduces the efficiency of the device.

Method used

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  • Acenaphthene organic electroluminescent compounds and organic electroluminescent device thereof
  • Acenaphthene organic electroluminescent compounds and organic electroluminescent device thereof
  • Acenaphthene organic electroluminescent compounds and organic electroluminescent device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Synthesis of Compound 4

[0055]

[0056] In a one-necked flask, add intermediate A (0.8g, 3.3mmol), 2-bromotriphenylene (1g, 3.3mmol), K 2 CO 3 (0.9g, 6.6mmol), CuI (0.05g), o-phenanthroline (0.05g), o-dichlorobenzene (40mL), heated to reflux under nitrogen protection for 12 hours, after the reaction was over, the solvent was removed, and the crude product was Purified by column chromatography to obtain 1 g of solid with a yield of 64%.

Embodiment 2

[0058] Synthesis of compound 7

[0059]

[0060] The synthesis method is the same as that of compound 4, the raw material used is 3,5-diphenylbromobenzene, and the yield is 69%.

Embodiment 3

[0062] Synthesis of Compound 12

[0063]

[0064] The synthesis method is the same as that of compound 4, the raw material used is 9-phenyl-3-iodocarbazole, and the yield is 82%.

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Abstract

The invention provides acenaphthene organic electroluminescent compounds. The structure of the compounds is shown in the description, and the compounds have better thermal stability, high luminous efficiency and high luminous purity, can be used for manufacturing organic electroluminescent devices (OLEDs), and are applied to the fields of organic solar cells, organic thin film transistors or organic photoreceptors. The invention also provides the organic electroluminescent device, and the organic electroluminescent device comprises an anode, a cathode and an organic layer, wherein the organiclayer comprises at least one of a luminous layer, a hole injection layer, a hole transport layer, a hole blocking layer, an electron injection layer and an electron transport layer, and the organic layer contains a compound represented by a formula I, and has the advantages of good electroluminescent efficiency, excellent color purity and long service life.

Description

technical field [0001] The invention relates to the field of organic electroluminescent materials, in particular to an acenaphthene-based organic electroluminescent material and an organic electroluminescent device, and belongs to the technical field of organic electroluminescent device display. Background technique [0002] Organic electroluminescent devices (OLEDs) are devices prepared by depositing a layer of organic materials between two metal electrodes by spin coating or vacuum evaporation. A classic three-layer organic electroluminescent device includes a hole transport layer, emissive layer and electron transport layer. The holes generated by the anode are combined with the electrons generated by the cathode through the hole transport layer to form excitons in the light emitting layer through the hole transport layer, and then emit light. Organic electroluminescent devices can be adjusted to emit various required lights by changing the material of the light-emitting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/94C07D401/10C07D403/04C07D403/10C07D413/10C09K11/06H01L51/50H01L51/54
Inventor 黄锦海苏建华
Owner SHANGHIA TAOE CHEM TECH CO LTD
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