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Novel compound and organic light-emitting device including the same

A technology of organic light-emitting devices and compounds, which is applied in the field of novel compounds and organic light-emitting devices containing them, can solve the problems of high driving voltage, short life, low efficiency, etc., and achieve increased hole mobility, prevention of recrystallization, high efficiency effect

Inactive Publication Date: 2019-04-30
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, many compounds have been known as substances used in such organic light-emitting devices, but in the case of organic light-emitting devices using hitherto known substances, there is a continuous demand for high driving voltage, low efficiency and short life. develop new materials

Method used

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  • Novel compound and organic light-emitting device including the same
  • Novel compound and organic light-emitting device including the same
  • Novel compound and organic light-emitting device including the same

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0124] Preparation Example 1: Synthesis of main core (main core) 1

[0125] In order to synthesize the target compound, main core 1 (main core 1) was synthesized as follows.

[0126]

[0127] In a round bottom flask, 100.0 g (603.32 mmol, 1 eq) of 1,2-phenylene diboronic acid (1,2-phenylenediboronic acid), 1-bromo-2-iodobenzene (1-bromo-2-iodobenzene) 341.3g (1206.64mmol, 2eq), Pd(PPh 3 ) 4 34.85g (30.17mmol, 0.05eq), K 3 PO 4 256.13g (1206.64mmol, 2eq) was dissolved in 1,4-dioxane (1,4-dioxan) 1000ml, H 2 After O 200mL, reflux and stir. After 2 hours, completion of the reaction was confirmed by thin layer chromatography (TLC), and the organic layer was extracted with methylcellulose (MC). After the extracted substance was filtered under reduced pressure, it was recrystallized from MC and n-hexane (Hexane) to obtain 220 g of main core 1 (yield = 94.0%, white solid (White solid)).

preparation example 2

[0128] Preparation Example 2: Synthesis of main core (main core) 2

[0129]

[0130] In order to synthesize the target compound, using the main core 1 obtained in the above Preparation Example 1 as a starting material, various reagents (Reagent) (dibenzo[b,p]furan-4-ylboronic acid (dibenzo[b,d ]furan-4-ylboronic acid), dibenzo[b,p]furan-3-ylboronic acid (dibenzo[b,d]furan-3-ylboronic acid), dibenzo[b,p]furan-2- Base boronic acid (dibenzo[b,d]furan-2-ylboronic acid) was used to synthesize main core 2 by Suzuki reaction.

[0131] In a round bottom flask, the main core 1 50.0g (128.8mmol, 1eq), dibenzo [b, p] furan-4-yl boronic acid (dibenzo [b, d] furan-4-ylboronic acid) 24.6g ( 115.94mmol, 0.9eq), Pd(PPh 3 ) 4 7.44g (6.44mmol, 0.05eq), K 3 PO 4 54.7g (257.6mmol, 2eq) was dissolved in 1,4-dioxane (1,4-dioxane) 500mL, H 2 After O 100mL, reflux and stir. After 1 hour, completion of the reaction was confirmed by thin layer chromatography (TLC), and the organic layer wa...

Embodiment 1

[0172] Example 1: Use as a luminescent auxiliary layer (second hole transport layer)

[0173] ultrasonication of distilled water The thickness of the glass substrate coated with indium tin oxide (ITO) as a thin film is washed. When the distilled water washing is completed, use a solvent such as isopropanol, acetone, methanol, etc. to perform ultrasonic cleaning, and after drying, transfer to a plasma cleaner, and then use oxygen plasma to clean the above-mentioned substrate for 5 minutes. The upper part of the substrate uses a thermal vacuum depositor (thermal evaporator) as a hole injection layer to DNTPD, HATCN for film formation, as the first hole transport layer will NPB for film formation, as the second hole transport layer will After compound 1 was formed into a film, as the above-mentioned light-emitting layer doped with 3% of BH01:BD01, to Make a film. Next, as the electron transport layer will After the ET01:Liq (1:1) was used to make the film, the of ...

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PUM

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Abstract

The present invention relates to a novel compound and an organic light-emitting device comprising the same, and the novel compound according to one embodiment of the present invention is suitable foran organic light-emitting device, and can ensure high efficiency, long life, low driving voltage, and low driving stability of the organic light-emitting device.

Description

technical field [0001] The present invention relates to novel compounds and organic light-emitting devices comprising them. Background technique [0002] In organic light emitting diodes, materials used as organic layers can be roughly classified into light emitting materials, hole injection materials, hole transport materials, electron transport materials, electron injection materials, etc. according to functions. Moreover, the above-mentioned luminescent materials can be classified into high molecular weight and low molecular weight according to the molecular weight, and can be classified into fluorescent materials derived from the singlet excited state of electrons and phosphorescent materials derived from the triplet excited state of electrons according to the light emitting mechanism. Luminescent colors are classified into blue, green, red luminescent materials and yellow and orange luminescent materials required to reflect better natural colors. Also, in order to incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/91C07C211/61C07C211/54H01L51/50H01L51/54H10K99/00
CPCC07C211/54C07C211/61C07D307/91H10K85/615H10K85/631H10K85/633H10K85/6574H10K50/15H10K50/17H10K50/11
Inventor 安贤哲姜京敏金熙宙咸昊完金东骏朴旻洙韩政佑林东焕李萤振林大喆金昇好文锺勋徐净雅权桐热李成圭
Owner DONGJIN SEMICHEM CO LTD
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