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Novel compound and organic electroluminescent device including same

A technology of organic light-emitting devices and compounds, which is applied in the field of organic light-emitting devices and novel arylamine compounds, can solve the problems of high driving voltage, low efficiency, and short life, and achieve high color purity, high efficiency, and film stability and life. Effect

Pending Publication Date: 2018-12-28
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 device including same
  • Novel compound and organic electroluminescent device including same
  • Novel compound and organic electroluminescent device including same

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0083] The reactants IM 1-1 to IM 1-4 and the reactants IM2-1 to IM 2-6 used to synthesize the target compound are as follows:

[0084]

[0085]

[0086] Synthesis of compound 1

[0087]

[0088] In a round bottom flask, 25.0 g of IM 1-1 (2.4eq), 5.0 g of IM 2-1 (1 eq), t-BuONa (2.5 eq), Pd2 (dba) 3 (0.04eq), (t-Bu) 3 P (0.08eq) was dissolved in 10 vol of toluene, and stirred under reflux. 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 and recrystallization to obtain 14.8 g (yield 71%) of Compound 1.

[0089] m / z: 705.34 (100.0%), 706.34 (58.8%), 707.35 (17.0%), 708.35 (3.2%)

[0090] Synthesis of compound 2

[0091]

[0092] Compound 2 was synthesized in the same manner as compound 1, using IM 2-2 instead of IM 2-1 (yield 68%).

[0093] m / z: 705.34 (100.0%), 70...

Embodiment 1

[0138] Embodiment 1: Preparation of organic light-emitting device

[0139] 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 (H1-01) for film formation, as a 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 LiF, The aluminum (Al) film was formed, and the device was encapsulated (Encapsulation) in a glove...

Embodiment 2 to Embodiment 13

[0140] Example 2 to Example 13: Preparation of Organic Light-Emitting Devices

[0141] Using the same method as in Example 1, an organic light-emitting device in which a hole transport layer was formed using Compound 2 to Compound 13 instead of Compound 1 was prepared.

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PUM

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Abstract

The invention relates to a novel arylamine compound which, if used as a hole transport layer (HTL), a light emitting auxiliary layer (HT prime) or a hole injection layer (HIL), can increase hole injection and transport characteristics, thereby providing high efficiency and long life of a device.

Description

technical field [0001] The present invention relates to novel arylamine compounds and organic light-emitting devices comprising the same. 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...

Claims

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Application Information

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IPC IPC(8): C07C211/54C07D209/86C07D307/91C07D333/76C07D409/14H01L51/50H01L51/54
CPCC07C211/54C07D209/86C07D307/91C07D333/76C07D409/14C07C2603/18H10K85/626H10K85/615H10K85/631H10K85/6576H10K85/6574H10K85/6572H10K50/00H10K85/633H10K50/156
Inventor 朴旻洙安贤哲姜京敏徐净雅李成圭
Owner DONGJIN SEMICHEM CO LTD
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