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Organic electroluminescent compound and organic electroluminescent device

An electroluminescent device and electroluminescent technology, applied in the fields of organic chemistry, electro-solid devices, electrical components, etc., can solve the problems of insufficient development of organic electroluminescent materials, backward panel manufacturing enterprises, etc., and achieve HOMO energy level reduction and migration. The effect of improving efficiency, improving luminous efficiency and lifespan

Active Publication Date: 2020-09-08
NANJING TOPTO MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As far as the actual needs of the current organic electroluminescent industry are concerned, the development of organic electroluminescent materials is far from enough, lagging behind the requirements of panel manufacturers

Method used

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  • Organic electroluminescent compound and organic electroluminescent device
  • Organic electroluminescent compound and organic electroluminescent device
  • Organic electroluminescent compound and organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076]

[0077] The preparation method of organic electroluminescent compound 1 is as follows:

[0078]

[0079] S1: Under nitrogen protection, compound 1-a (10g, 238.09g / mol, 42mmol), compound 1-b (1.1eq, 15.75g, 340.94g / mol, 46.2mmol) and sodium carbonate (2eq, 8.9g, 105.99g / mol, 84mmol) was added in toluene (200ml), ethanol (50ml), water (50ml), stirred and mixed and then added tetrakistriphenylphosphine palladium (0.05eq, 2.43g, 1155.58g / mol, 2.1 mmol), warming up to reflux reaction for 10h, cooling to room temperature and adding water (150ml), stirring to separate the water phase, the water phase was extracted with dichloromethane and combined with the organic phase, and the organic phase was dried with anhydrous sodium sulfate and then mixed with silica gel. Analyze and purify to obtain compound 1-c (15.07g, yield 88.1%), ESI-MS (m / z) (M+): theoretical value 407.30, measured value 408.09, elemental analysis result (molecular formula C23H19BrO2): theoretical value C...

Embodiment 2

[0087]

[0088] The preparation method of organic electroluminescent compound 2 is as follows:

[0089]

[0090] The preparation method is basically the same as in Example 1, the difference is that compound 1-g is replaced by compound 2-b, the yield is 62.5%, ESI-MS (m / z) (M+): theoretical value 794.03, measured value 795.20, element Analysis results (molecular formula C61H47N): theoretical value C, 92.27; H, 5.97; N, 1.76; found value C, 92.28; H, 5.97; N, 1.76.

Embodiment 3

[0092]

[0093] The preparation method of organic electroluminescent compound 3 is as follows:

[0094]

[0095] The preparation method is basically the same as in Example 1, the difference is that compound 1-g is replaced by compound 3-b, the yield is 64.1%, ESI-MS (m / z) (M+): theoretical value 794.03, measured value 795.09, element Analytical results (molecular formula C61H47N): theoretical value C, 92.27; H, 5.97; N, 1.76; found value C, 92.27; H, 5.97; N, 1.76.

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Abstract

The invention discloses an organic electroluminescent compound and an organic electroluminescent device, wherein the structural formula of the organic electroluminescent compound is represented by thefollowing formula 1, m, n and p are the same or different, m, n and p are independently 0 or 1, m + n + p = 1, a benzene ring A and a benzene ring B are connected through a single bond or not througha single bond, Ar1, Ar2, Ar3, Ar4, Ar5 and Ar6 are represented by a formula 2, R is a substituted or unsubstituted C6-C60 aryl or substituted or unsubstituted C6-C60 heteroaryl, q is 0 or 1, and L isphenylene or naphthylene. According to the invention, with the application of the organic electroluminescent compound as a luminescent layer material to an organic electroluminescent device, the service life of the prepared organic electroluminescent device is prolonged to a great extent, so that the organic electroluminescent compound has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to an organic electroluminescence compound and an organic electroluminescence device. Background technique [0002] Organic light-emitting devices (Organic Light-emitting Devices, OLED) are spontaneous light-emitting devices using the following principle: when an electric field is applied, fluorescent substances emit light through the recombination of holes injected from the positive electrode and electrons injected from the negative electrode. This self-luminous device has the characteristics of low voltage, high brightness, wide viewing angle, fast response, good temperature adaptability, etc., and is ultra-thin, and can be fabricated on flexible panels. It is widely used in mobile phones, tablet computers, TVs, lighting, etc. and other fields. [0003] Organic electroluminescent devices are like a sandwich structure, including electrode material film layers, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/61C07D307/91C07D209/88C07D409/12C07D333/76C07D209/86C09K11/06H01L51/50H01L51/54
CPCC07C211/61C07D307/91C07D209/88C07D409/12C07D333/76C07D209/86C09K11/06C09K2211/1011C09K2211/1014C09K2211/1022C09K2211/1029C09K2211/1088C09K2211/1092H10K85/624H10K85/615H10K85/622H10K85/631H10K85/636H10K85/626H10K85/633H10K85/6576H10K85/6574H10K85/6572H10K50/18H10K50/15H10K50/16H10K50/17H10K50/11
Inventor 钱超许军
Owner NANJING TOPTO MATERIALS CO LTD
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