Fluorene-containing aryl amine compound and organic electroluminescent device thereof

A compound and aromatic amine technology, applied in the field of aromatic amine compounds and organic electroluminescent devices, can solve the problems of unbalanced charge in the light-emitting layer, reducing the light-emitting efficiency of OLED devices, easy transfer of excitons to the hole transport layer, etc. Good hole transport performance, good photoelectric performance and thermal stability, the effect of increasing rigidity

Active Publication Date: 2020-11-20
CHANGCHUN HYPERIONS TECH CO LTD
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  • Application Information

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Problems solved by technology

However, on the other hand, this will make the excitons generated in the light-emitting layer easily transfer to the hole transport layer, resulting in charge imbalance in the light-emitting layer, resulting in light emission at the interface of the hole transport layer, reducing the luminous efficiency of the OLED device.

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  • Fluorene-containing aryl amine compound and organic electroluminescent device thereof
  • Fluorene-containing aryl amine compound and organic electroluminescent device thereof
  • Fluorene-containing aryl amine compound and organic electroluminescent device thereof

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Embodiment Construction

[0021] The aryl group described in the present invention refers to the general term for the remaining groups after removing a hydrogen atom from an aromatic nucleus carbon of an aromatic hydrocarbon molecule, which can be a single-ring aryl group or a condensed-ring aryl group, for example, it can be selected from phenyl , Pentadeuterophenyl, biphenyl, terphenyl, naphthyl, anthracenyl, phenanthrenyl, pyrenyl, fluorenyl, triphenylene, etc., but not limited thereto.

[0022] The heteroaryl group mentioned in the present invention refers to the general term of the group obtained by replacing one or more aromatic nuclear carbons in the aryl group with heteroatoms, the heteroatoms include but not limited to oxygen, sulfur or nitrogen, the heteroaryl The radical can be a monocyclic heteroaryl group or a condensed ring heteroaryl group, for example, can be selected from pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolyl, carbazolyl, Thienyl, benzothienyl, ...

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Abstract

The invention provides a fluorene-containing aryl amine compound and an organic electroluminescent device thereof, and belongs to the technical field of organic photoelectric materials. To improve thebalance of charges in a light-emitting layer and avoid interface luminescence of a hole transport layer, the invention provides a fluorene-containing aryl amine compound, which has a proper HOMO value and T1 value and a good hole transport performance; and the fluorene-containing aryl amine compound can improve the luminous efficiency of a device and prolong the service life of the device when being applied to the OLED device as a hole transport layer, and is an OLED material with excellent photoelectric properties.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an aromatic amine compound containing fluorene and an organic electroluminescence device thereof. Background technique [0002] As people's requirements for display and lighting are getting higher and higher, organic light-emitting diodes (Organic Light-Emitting Diode, hereinafter referred to as OLED) rely on its small thickness, light weight, wide viewing angle, short response time, wide application temperature range, energy With the advantages of low power consumption, high luminous efficiency, good color purity, and good bendability, it is favored by display companies and lighting companies. [0003] In 1987, Deng Qingyun and others stacked organic layers together to form a light-emitting device for the first time, which laid the foundation for the development of OLEDs. OLED researchers continue to optimize the structure of the device and strive to dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/54C07C211/56C07C211/58C07C211/60C07C211/61C07C217/84C07C255/58C07D213/38C07D213/74C07D215/38C07D215/40C07D215/44C07D217/02C07D239/26C07D239/42C07D251/22C07D307/91C07D333/76H01L51/50H01L51/54
CPCC07C211/54C07C211/61C07C211/58C07C211/56C07C217/84C07C255/58C07C211/60C07D307/91C07D213/74C07D251/22C07D239/42C07D215/40C07D333/76C07D213/38C07D215/38C07D217/02C07D215/44C07D239/26C07C2603/18C07C2603/40C07C2603/94C07C2603/52C07B2200/05H10K85/626H10K85/636H10K85/633H10K85/631H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/11H10K2101/40H10K50/15
Inventor 周雯庭刘辉鲁秋
Owner CHANGCHUN HYPERIONS TECH CO LTD
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