Novel compound and organic electroluminescent divice including the same

A technology for organic light-emitting devices and compounds, 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 the effects of long life, recrystallization prevention, and high efficiency

Pending Publication Date: 2018-12-11
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 electroluminescent divice including the same
  • Novel compound and organic electroluminescent divice including the same
  • Novel compound and organic electroluminescent divice including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0108] intermediate synthesis

[0109]

[0110] In order to synthesize the target compound, the intermediate IM was synthesized through the above reaction.

Synthetic example 1

[0111] Synthesis Example 1: Synthesis of Intermediate (IM1)

[0112]

[0113] In a round bottom flask, 8.5 g of (9,9-dimethyl-9H-fluoren-2-yl)boronic acid ((9,9-dimethyl-9H-fluoren-2-yl)boronic acid), 1-bromo -4-iodobenzene (1-bromo-4-iodobenzene) 10.0g dissolved in 1,4-dioxane (1,4-dioxan) 200ml, put into K 2 CO 3 (2M)50ml and Pd(PPh 3 ) 4 After 1.3 g, reflux stirring was performed. The reaction was confirmed by thin layer chromatography (TLC), and after adding water, the reaction was terminated. The organic layer was extracted with methylcellulose (MC), and filtered under reduced pressure, followed by column purification to obtain 8.27 g (yield 67%) of IM1-1.

[0114] In a round bottom flask, the above IM1-1 8.0g, aniline (aniline) 2.4g, t-BuONa3.3g, Pd 2 (dba) 3 0.85g, (t-Bu) 3 After 1.0 ml of P was dissolved in 110 ml of toluene, stirring was performed under reflux. The reaction was confirmed by thin layer chromatography (TLC), and after adding water, the re...

Embodiment 1

[0169] 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 HI01 for film production, the The HATCN film is used as a hole transport layer to BPA for film formation, as a luminescent auxiliary 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 LiF, Aluminum (Al) was used to form a film, and the device was sealed (Encap...

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PUM

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Abstract

The invention relates to a novel compound and an organic electroluminescent device including the same. According to a novel compound provided by one embodiment of the invention, a oinking group is arranged between a second position of fluorine and arylamine, the arylamine has a substituent having more than two aryl groups and a phenyl substitute, and an organic electroluminescent device includingthe same can realize low voltage, high efficiency and long life.

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): C07C211/54H01L51/50H01L51/54
CPCC07C211/54C07C2603/18H10K85/631H10K50/00C09K11/06C09K2211/1011C09K2211/1014H10K50/11
Inventor 咸昊完安贤哲姜京敏金熙宙金东骏裴惟珍闵丙哲李萤振林东焕林大喆权桐热李成圭
Owner DONGJIN SEMICHEM CO LTD
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