Arylamine compound containing carbazole group and organic electroluminescent device thereof

A technology of carbazole groups and compounds, which is applied in the field of organic optoelectronic materials, can solve the problems of limited types of aromatic amine compounds, achieve good thermal stability, prolong service life, and not easy to crystallize

Active Publication Date: 2022-05-06
CHANGCHUN HYPERIONS TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the above-mentioned arylamine compounds that are currently used in industry are limited in type and need to be developed urgently.

Method used

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  • Arylamine compound containing carbazole group and organic electroluminescent device thereof
  • Arylamine compound containing carbazole group and organic electroluminescent device thereof
  • Arylamine compound containing carbazole group and organic electroluminescent device thereof

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions of the specific embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The "substitution" in the present invention means that the hydrogen atom in some functional group is replaced by another atom or functional group (ie, a substituent), and the position of substitution is not limited, as long as the position is the position where the hydrogen atom is substituted , and when two or more are substituted, the two or more substituents may be the same or different from each other.

[0027] "Substituted or unsubstituted" in the present invention means unsubstituted or substituted with o...

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Abstract

The invention relates to the technical field of organic photoelectric materials, in particular to an arylamine compound containing a carbazole group and an organic electroluminescent device thereof. The arylamine compound containing the carbazole group in the formula (I) provided by the invention has good hole mobility, proper HOMO energy level and T1 value and high glass transition temperature (Tg), so that the arylamine compound is high in energy level matching degree with adjacent organic matter layers, good in thermal stability and excellent in molecular arrangement, and can be applied to the field of organic light emitting devices. When being applied to an OLED device as a hole transport material, the compound is not easy to crystallize, good in film-forming stability and appropriate in hole transport capacity under the action of an external electric field, and especially when being used as a host material of a hole injection layer, a hole transport layer material or a light-emitting auxiliary layer material, the compound can effectively improve the light-emitting efficiency of the device, reduce the driving voltage of the device and improve the light-emitting efficiency of the device. The service life of the device is prolonged. In conclusion, the arylamine compound containing the carbazole group provided by the invention is an OLED (Organic Light Emitting Diode) material with excellent performance and wide application.

Description

technical field [0001] The invention relates to the technical field of organic optoelectronic materials, in particular to an aromatic amine compound containing a carbazole group and an organic electroluminescence device thereof. Background technique [0002] Compared with traditional liquid crystal display (LED), organic light-emitting diode (Organic Light-Emitting Diode, hereinafter referred to as OLED) has the advantages of small thickness, light weight, wide viewing angle, short response time, wide operating temperature range, low energy consumption and high efficiency. It has the advantages of high color purity, flexibility, etc. It has been widely used in the field of lighting and display, and is regarded as one of the most developed display technologies by the industry. [0003] The device structure of OLED is sandwich-shaped, including a cathode, an anode, and an organic layer between them. The organic layer can also be divided into a hole transport region, an electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/88C07D209/86C07D209/94C07D209/80C09K11/06H01L51/54
CPCC07D209/88C07D209/86C07D209/94C07D209/80C09K11/06C09K2211/1029C09K2211/1011C09K2211/1007H10K85/615H10K85/6572
Inventor 郭建华董秀芹韩春雪周雯庭
Owner CHANGCHUN HYPERIONS TECH CO LTD
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