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Organic electroluminescent material and organic electroluminescent device thereof

A technology of electroluminescent materials and electroluminescent devices, which is applied in the direction of luminescent materials, electric solid devices, electrical components, etc., can solve the problems of shortened life, low color purity and efficiency of organic light-emitting devices, and reduce the driving voltage , good fluorescence performance and photostability, and high glass transition temperature

Inactive Publication Date: 2018-11-13
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of emitting light at the interface of the hole transport layer, there will be problems in the color purity and efficiency of the organic light-emitting device being reduced and the lifespan will be shortened

Method used

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  • Organic electroluminescent material and organic electroluminescent device thereof
  • Organic electroluminescent material and organic electroluminescent device thereof
  • Organic electroluminescent material and organic electroluminescent device thereof

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Embodiment Construction

[0028] The technical solutions of the specific embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0029] It should be noted that, unless otherwise specified, the meanings of the technical terms used in the present invention are the same as those commonly understood by those skilled in the art.

[0030] 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 , biphenyl, terphenyl, ...

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Abstract

The invention provides an organic electroluminescent material and an organic electroluminescent device thereof, and relates to the technical field of organic optoelectronic materials. The organic electroluminescent material is a mixture of two compounds. Under the synergistic action of the two compounds, the highest occupied molecular orbital energy level, hole mobility and vitrification transition temperature are high, and the solubility, amorphous film-formation property, stability and fluorescence properties are very good. When the organic electroluminescent material is applied to an OLED device as a first hole transport layer and a second hole transport layer, the luminous efficiency, color purity and service life of the device can be significantly improved, and the device driving voltage can be lowered. The organic electroluminescent material is an excellent OLED material.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to an organic electroluminescence material and an organic electroluminescence device. Background technique [0002] Organic Light-Emitting Diode (OLED), also known as organic electric laser display, is a double-injection light-emitting device. The device structure consists of an anode, a cathode, and more than one organic thin film layer between the anode and the cathode. . Its light-emitting mechanism is: apply a voltage between the anode and the cathode, electrons are injected from the cathode side, holes are injected from the anode side, the two combine to form excitons in the light-emitting layer, and the excitons return from the excited state to The ground state, thereby emitting light, realizes the direct conversion of electrical energy into light energy of organic semiconductor material molecules. [0003] According to different functions, OLED materials...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07D221/10C07D401/04C07D405/12C07D409/12C07D405/14C07D409/14C07D471/04C07D401/10C07D487/04C07D209/80C07D209/94C07D495/04C07D491/048H01L51/50H01L51/54
CPCC09K11/06C07D209/80C07D209/94C07D221/10C07D401/04C07D401/10C07D405/12C07D405/14C07D409/12C07D409/14C07D471/04C07D487/04C07D491/048C07D495/04C09K2211/1088C09K2211/1092C09K2211/1029C09K2211/1007C09K2211/1011H10K85/624H10K85/626H10K85/615H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K50/15
Inventor 杜明珠蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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