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Anthracene-containing compound, synthesis method thereof, and organic electroluminescent device

A technology of electroluminescent devices and compounds, which is applied in the fields of electro-solid devices, silicon organic compounds, chemical instruments and methods, etc., can solve the problem of low electron and hole recombination efficiency, low luminous efficiency of light-emitting devices, and inability to effectively balance current carrying It can improve the recombination rate of carriers, enhance the direction of charge migration, and not easy to crystallize.

Inactive Publication Date: 2018-01-19
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In organic electroluminescent devices, because the transport velocity of electrons in carriers is lower than that of holes, the recombination efficiency of electrons and holes is low and the recombination area is shifted, which leads to the luminous efficiency of organic electroluminescent devices Low, uneven light color, low life
[0006] However, in practical applications, the carrier transport of each functional layer is uneven, which cannot effectively balance the injection of carriers. With the further improvement of the market requirements for OLED devices, higher luminous efficiency, longer life, and lower cost have become The development trend of OLED devices, so how to develop a host material and electron transport material with high electron transport performance, improve electron mobility, promote carrier injection balance, and then make the device have higher luminous efficiency and longer life has become an urgent need to solve The problem

Method used

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  • Anthracene-containing compound, synthesis method thereof, and organic electroluminescent device
  • Anthracene-containing compound, synthesis method thereof, and organic electroluminescent device
  • Anthracene-containing compound, synthesis method thereof, and organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] [Example 1] Synthesis of compound 3

[0058]

[0059] Step1: Under the protection of nitrogen, add 2-bromoanthracene (2.16g, 8.4mmol), 9-acridineboronic acid (2.05g, 9.2mmol), tetrakistriphenylphosphine palladium (0.09g, 0.08mmol), carbonic acid into the reaction vessel Potassium (3.48g, 25.2mmol), 60mL toluene, 20mL ethanol and 20mL distilled water, stirred at 120°C for 3h. After the reaction, distilled water to stop the reaction, ethyl acetate extraction, organic layer with MgSO 4 After drying, the solvent was distilled off under reduced pressure, and then purified by silica gel column chromatography to obtain Intermediate 3-1 (1.94 g, 65%).

[0060] Step2: Add 3-1 (3.55g, 10.0mmol), 60mL of DMF solution, 60mL of glacial acetic acid, and 50mL of chloroform to the reactor under the condition of nitrogen and no light, add NBS (2.22g, 12.5mmol), and stir for 2h at room temperature. The crude product was precipitated, filtered and washed with methanol to obtain Intermediate 3...

Embodiment 2

[0064] [Example 2] Synthesis of compound 4

[0065] According to the synthesis method of compound 3, compound 4 (4.28 g, 67%) was obtained.

[0066]

Embodiment 3

[0067] [Example 3] Synthesis of compound 5

[0068] According to the synthesis method of compound 3, compound 5 (3.56 g, 62%) was obtained.

[0069]

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PUM

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Abstract

The invention provides an anthracene-containing compound, a synthesis method thereof, and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. In the invention, different ligands are connected to a main structure formed by connecting anthracene and acridine, thus regulating molecular weight, [pi]-conjugation degree and electrophilicity of thematerial, enhancing charge transmission capability, balancing carrier injection and increasing glass transition temperature. The compound is not liable to crystallize and has good film forming performance. The synthesis method is simple and easy to carry out. The compound can be used for producing the organic electroluminescent device, especially as a luminescent layer main body and an electron transfer layer material in the organic electroluminescent device. The organic electroluminescent device has high luminous efficiency and long service life.

Description

Technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an anthracene-containing compound, a synthesis method thereof, and an organic electroluminescence device. Background technique [0002] Organic electroluminescent device (OLED) is a new type of flat panel display, which has self-luminous, wide viewing angle, full curing, full color, fast response, high brightness, low driving voltage, thin thickness, light weight, The production of large-size and curved panels, etc., in recent years, OLED has been more and more used in the display market, becoming the most potential panel display technology. [0003] The structure of an organic electroluminescent device generally includes a cathode, an anode, and an organic layer in between. The organic layer mainly includes a light-emitting layer and a hole injection layer that balances carrier injection and transport, a hole transport layer, and electron injection. Functional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D219/02C07D401/10C07D401/14C07D405/10C07D405/14C07D409/10C07D409/14C07D417/14C07D471/04C07F7/08C09K11/06H01L51/54
Inventor 蔡辉董秀芹
Owner CHANGCHUN HYPERIONS TECH CO LTD
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