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Organic electroluminescence material and organic luminescent device

An electroluminescent material and organic technology, applied in the direction of luminescent materials, electrical solid devices, electrical components, etc., can solve the problems of high driving voltage, low luminous efficiency, poor luminous performance, etc., to increase equilibrium movement and improve glass transition Effect of high temperature, glass transition temperature and thermal stability

Inactive Publication Date: 2018-01-12
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of low luminous efficiency and high driving voltage of organic photoelectric materials in the prior art and poor luminous performance, the present invention provides an organic electroluminescent material and an organic light emitting device

Method used

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  • Organic electroluminescence material and organic luminescent device
  • Organic electroluminescence material and organic luminescent device
  • Organic electroluminescence material and organic luminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: 1 synthesis of compound

[0041]

[0042] Step1. Take 1-0 100mmol, add 2 equivalents of o-carboxyphenylboronic acid, 300mmol sodium carbonate, 1mmol tetrakistriphenylphosphopalladium, toluene, ethanol, water mixed solvent, replace with argon three times, react at reflux temperature for 10h, crude The product was passed through a silica gel column to obtain 85 mmol of compound 1-1.

[0043] Step2. Under the protection of nitrogen, add 10 equivalents of methanesulfonic acid and 85mmol of intermediate 1-1 to the reactor, stir and react at room temperature for 5h, then add distilled water to terminate the reaction to obtain a precipitate, and prepare the intermediate through silica gel column chromatography / liquid phase 1-241 mmol.

[0044] Step3. Take raw material 1-2 41mmol, add solvent trifluoroacetic acid, triethylsilane 10 equivalents, and stir the mixture at room temperature overnight. After the reaction is completed, put the reaction solution into wat...

Embodiment 2

[0046] Embodiment 2: 2 synthesis of compound

[0047]

[0048] Step1. Take 100mmol of 2-0, add 2 equivalents of o-carboxyphenylboronic acid, 300mmol sodium carbonate, 1mmol tetrakistriphenylphosphopalladium, toluene, ethanol, water mixed solvent, replace with argon three times, react at reflux temperature for 10h, crude The product was passed through a silica gel column to obtain 85 mmol of compound 2-1.

[0049] Step2. Under the protection of nitrogen, add 10 equivalents of methanesulfonic acid and 85mmol of intermediate 2-1 to the reactor, stir and react at room temperature for 5h, and then add distilled water to terminate the reaction to obtain a precipitate, which is prepared by silica gel column chromatography / liquid phase to obtain the intermediate 2-241 mmol.

[0050] Step3. Take raw material 2-2 41mmol, add solvent trifluoroacetic acid, triethylsilane 10 equivalents, and stir the mixture at room temperature overnight. After the reaction is completed, put the reacti...

Embodiment 3

[0052] Embodiment 3: 3 synthesis of compound

[0053]

[0054] Step1. Take 100mmol of 2-0, add 2 equivalents of o-carboxyphenylboronic acid, 300mmol sodium carbonate, 1mmol tetrakistriphenylphosphopalladium, toluene, ethanol, water mixed solvent, replace with argon three times, react at reflux temperature for 10h, crude The product was passed through a silica gel column to obtain 85 mmol of compound 2-1.

[0055] Step2. Under the protection of nitrogen, add 10 equivalents of methanesulfonic acid and 85mmol of intermediate 2-1 to the reactor, stir and react at room temperature for 5h, and then add distilled water to terminate the reaction to obtain a precipitate, which is prepared by silica gel column chromatography / liquid phase to obtain the intermediate 2-241 mmol.

[0056] Step3. Take raw material 2-2 41mmol, add solvent trifluoroacetic acid, triethylsilane 10 equivalents, and stir the mixture at room temperature overnight. After the reaction is completed, put the reacti...

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Abstract

The invention provides an organic electroluminescence material and an organic luminescent device, and belongs to the technical field of organic optoelectronic materials. The organic electroluminescence material solves the technical problem of low lighting efficiency, high driving voltage and poor lighting performance of the organic optoelectronic materials. Two fluorene rings are connected throughheteroatom, the vitrification transformation temperature of a compound is significantly improved, and the balance movement of a current carrier is increased. The experiment result shows that the highest lighting efficiency of the organic luminescent device prepared by the organic electroluminescence material is up to 53.9cd / A; the lowest driving voltage is 3.8V; therefore, the organic electroluminescence material is an excellent OLED material.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic electroluminescent material and an organic light emitting device. Background technique [0002] Organic electroluminescent materials have been developed for quite a long time, and fluorescent materials, as the first generation of light-emitting materials, are often used in the light-emitting layer. In addition, phosphorescent materials have also received considerable attention as the second-generation luminescent host materials. [0003] In organic light-emitting devices prepared using phosphorescent materials, materials containing carbazole groups such as CBP are mostly used as the host light-emitting material of the light-emitting layer. However, when this type of material is used as a host material, the driving voltage of the device is often high. In addition, we also found that when such phosphorescent materials are used in flat-panel disp...

Claims

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Application Information

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IPC IPC(8): C07D307/77C07D333/78C07F7/08C07D209/94C07D409/14C07D405/14C07D401/14C07D403/14C07D405/04C07D403/04C09K11/06H01L51/50H01L51/54
Inventor 孙可一蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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