Compound for organic electroluminescent device and application thereof

A technology for electroluminescent devices and compounds, applied in the fields of organic chemistry, electro-solid devices, electrical components, etc., can solve problems affecting device stability, imbalance of electron and hole charge mobility, and changes in device conductivity, etc. The effect of carrier mobility

Inactive Publication Date: 2019-05-03
欧洛德(武汉)光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use in organic electroluminescent devices will change the conductivity of the entire device, and the electron and hole charge mobility in the device will be unbalanced, which will affect the stability of the device, resulting in a decrease in device performance or even failure.

Method used

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  • Compound for organic electroluminescent device and application thereof
  • Compound for organic electroluminescent device and application thereof
  • Compound for organic electroluminescent device and application thereof

Examples

Experimental program
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Embodiment Construction

[0031] Hereinafter, the organic electroluminescent compound of the present invention, its preparation method, and the preparation method and light-emitting properties of a light-emitting device comprising the compound are described in detail with reference to the following examples.

[0032] Various chemicals used in the present invention such as petroleum ether, ethyl acetate, tetrahydrofuran, dioxane, toluene, acetic acid, methylene chloride, DMF, methyl o-iodobenzoate, tetrakistriphenylphosphine palladium, 2- Various boric acids or boric acid esters, phenylhydrazine hydrochloride, 4-bromophenylhydrazine hydrochloride, etc. Chemical product market to buy.

[0033] Preparation of Synthetic Example 1 Intermediate M1

[0034]

[0035] Under the protection of nitrogen, in the 250 milliliter three-neck flask that condenser tube is housed, add 27.2 gram borates (0.1mol), 28.8 gram o-iodobenzoic acid methyl esters (0.11mol), 1.15 gram tetrakistriphenylphosphine palladium (1mmol...

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Abstract

The invention relates to a compound for an organic electroluminescent device and application thereof. The compound is represented by the following general formula, wherein L1 and L3 are same or different and are independently selected from hydrogen and C6-C30 aryl; and Ar1 to Ar3 are same or different and are independently selected from hydrogen, halogen, substituted or unsubstituted C6-C30 aryl,or substituted or unsubstituted C2-C30 heteroaryl. The compound has the characteristic that the carbonyl group of amide has good electron affinity, so that electron injection is facilitated; accordingto the amide structure formed by carbazole, d lone pair electrons on N atoms participate in the conjugated bond forming of an indole ring to form an aromatic system, so that the tendency of oxidationis greatly reduced, and the oxidation resistance of the compound is enhanced; and the cyclic amide structure is formed, due to the fact that the effective conjugation effect is generated among components, the whole molecule is easy to form effective accumulation in a solid phase, the transmission effect of charges between molecules is facilitated, and the carrier mobility is improved.

Description

technical field [0001] The invention relates to a novel organic compound and its application in the technical field of organic electroluminescence display. Background technique [0002] At present, with the increasing maturity of OLED technology and the continuous advancement in the display field, in order to further enhance the competitiveness of OLED technology, the development of OLED materials and novel device structures that can effectively improve OLED device efficiency, life, and reduce driving voltage are even more important. is of great significance. [0003] Excellent new materials can significantly reduce the cost of the screen body and improve the efficiency and lifespan, thus attracting more attention to the research on its core materials. Chemists have made outstanding contributions in this regard, designing and developing various Structural functionalized materials. In general, electron transport materials are compounds with electron-deficient nitrogen-conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/06C07D519/00C09K11/06H01L51/54
Inventor 黄雨鹏李博
Owner 欧洛德(武汉)光电科技有限公司
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