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A Novel Organic Electroluminescent Device

An electroluminescent device and luminescent technology, which can be used in the fields of electric solid-state devices, organic chemistry, electrical components, etc., and can solve problems such as unsatisfactory performance

Active Publication Date: 2018-11-09
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The performance of the currently known electron transport materials is not ideal, and the industry still urgently needs to develop new electron transport materials

Method used

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  • A Novel Organic Electroluminescent Device
  • A Novel Organic Electroluminescent Device
  • A Novel Organic Electroluminescent Device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The following describes the preparation of representative compounds of the present invention with reference to the following examples. Since the compounds of the present invention have the same skeleton, those skilled in the art can easily synthesize other compounds of the present invention through known functional group conversion methods based on these preparation methods. Hereinafter, the preparation method and light-emitting property measurement of the light-emitting device including the compound are also provided.

[0073] Synthetic Example:

[0074] The preparation process of the compound of the invention is simple and easy, the raw materials are easy to obtain, and it is suitable for mass production and scale-up.

[0075]Various chemicals used in the synthesis examples such as petroleum ether, ethyl acetate, n-hexane, toluene, tetrahydrofuran, methylene chloride, carbon tetrachloride, acetone, 1,2-bis(bromomethyl)benzene, CuI, Phthaloyl chloride, phenylhydraz...

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PUM

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Abstract

The invention discloses an organic electroluminescent device, which comprises a first electrode, a second electrode and one or more organic layers located between the first electrode and the second electrode, and the organic layer includes at least a luminescent layer and electron transport layer, characterized in that: the thickness of the electron transport layer is 5-100nm, and the electron transport layer contains at least one compound represented by formula (I): wherein, L is selected from chemical bonds, C6~C12 Arylene group or fused ring aromatic hydrocarbon group, C3~C12 heteroarylene group or fused heterocyclic aromatic hydrocarbon group; Ar1, Ar2 and Ar3 are independently selected from C6~C30 substituted or unsubstituted aryl groups or Condensed ring aromatic hydrocarbon group, C3~C30 substituted or unsubstituted heteroaryl or condensed heterocyclic aromatic hydrocarbon group; R1, R2, R3 and R4 are independently selected from hydrogen, C1~C10 alkylene, halogen, cyanide Base, nitro, C6~C30 substituted or unsubstituted aryl or fused ring aromatic hydrocarbon group, C3~C30 substituted or unsubstituted heteroaryl or fused heterocyclic aromatic hydrocarbon group, R3 and R4 can be mutually connected to form a ring structure. The organic electroluminescent device of the invention has the advantages of low operating voltage and high luminous efficiency.

Description

technical field [0001] The invention belongs to the field of organic electroluminescence, and more specifically, the invention relates to a novel organic electroluminescence device, in which a class of novel general formula compounds are used as electron transport layer materials. Background technique [0002] Organic electroluminescent display (hereinafter referred to as OLED) has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, light weight, simple composition and process, etc. Compared with liquid crystal display, organic electroluminescent display is not It needs a backlight source, has a large viewing angle, low power, and its response speed can reach 1000 times that of a liquid crystal display, but its manufacturing cost is lower than that of a liquid crystal display with the same resolution. Therefore, organic electroluminescent devices have broad application prospects. [0003] With the continuous advancement of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/54C07D239/74C07D401/14C07D405/04C07D403/04C07D409/04C07D401/04C07D405/14C07D401/10
CPCC07D239/74C07D401/04C07D401/10C07D401/14C07D403/04C07D405/04C07D405/14C07D409/04H10K85/622H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/16
Inventor 邢其锋李之洋刘叔尧任雪艳
Owner BEIJING ETERNAL MATERIAL TECH