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Novel compound applied to organic electroluminescent device

A technology for electroluminescent devices and compounds, applied in organic chemistry, electro-solid devices, electrical components, etc., can solve the problems of device performance degradation, affecting device stability, device conductivity changes, etc., achieving easy injection and improving current carrying. The effect of sub-mobility

Active Publication Date: 2020-09-04
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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  • Novel compound applied to organic electroluminescent device
  • Novel compound applied to organic electroluminescent device
  • Novel compound applied to organic electroluminescent device

Examples

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Embodiment Construction

[0036] 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.

[0037] Various chemicals used in the present invention such as petroleum ether, ethyl acetate, tetrahydrofuran, n-hexane, toluene, acetic acid, methylene chloride, DMF, methyl o-iodobenzoate benzene, tetrakistriphenylphosphine palladium, 4,5 -Dimethyldibromophthalate, phenylboronic acid, p-tolueneboronic acid, 2-naphthaleneboronic acid, p-fluorophenylboronic acid, 4-biphenylboronic acid, 4-pyridineboronic acid, 1,2-cyclohexanedione, phenylhydrazine Hydrochloride, 4-bromophenylhydrazine hydrochloride, isoamyl nitrite, zinc powder, sodium sulfate, etc. can be bought in the domestic chemical product market.

[0038] A1-A24 were all prepared according to the synthetic route of M1-M3.

[0039] Prepar...

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Abstract

The invention provides a novel compound applied to an organic electroluminescent device. The novel compound is represented by a general formula (I) which is described in the specification. In the general formula (I), L1 and L3 are the same or different and are independently selected from a single bond and C6-C30 aryl groups respectively; Ar, R1 and R2 are respectively and independently selected from hydrogen, halogen and substituted or unsubstituted C6-C30 aryl groups; R1 and R2 are the same or different; p is an integer in a range of 0 to 4; q is an integer in a range of 0 to 3; and n is an integer in a range of 0 to 6. A stable and efficient electron transport material prepared by the invention reduces the lighting and working voltage of the device, improves the efficiency of the device,prolongs the service life of the device, and has very important practical application value.

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): C07D487/06C07D519/00C09K11/06H01L51/50H01L51/54
CPCC07D487/06C07D519/00C09K11/06C09K2211/1007C09K2211/1029C09K2211/1011C09K2211/1044C09K2211/1059H10K85/622H10K85/615H10K85/626H10K85/654H10K85/6572H10K50/16
Inventor 黄雨鹏
Owner 欧洛德(武汉)光电科技有限公司
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