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Symmetrically-substituted aromatic amine compound and application in OLED device

An aromatic amine and compound technology, applied in the field of organic electroluminescent devices, can solve the problems of difficulty in commercialization, unclear mechanism, complex synthesis process, etc. easy effect

Inactive Publication Date: 2018-07-20
AAC TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN102659665B discloses two aromatic amine compounds with asymmetric structure. Although the overall performance is good, the synthesis process is complicated and the mechanism is not clear, so it is difficult to commercialize

Method used

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  • Symmetrically-substituted aromatic amine compound and application in OLED device
  • Symmetrically-substituted aromatic amine compound and application in OLED device
  • Symmetrically-substituted aromatic amine compound and application in OLED device

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preparation example Construction

[0088] The preparation methods of the compounds disclosed in the present invention are provided below. However, the present disclosure is not intended to be limited to any of the methods described herein. One skilled in the art can readily modify the described methods or utilize a different method to prepare one or more of the disclosed compounds. The following aspects are exemplary only, and are not intended to limit the scope of the present disclosure. Temperature, catalyst, concentration, reactant composition, and other process conditions may vary, and one skilled in the art of this disclosure can readily select appropriate reactants and conditions for a desired complex.

[0089] CDCl on a JEOL NMR instrument 3 or DMS0-d 6 Record at 400MHz in solution 1 H spectrum, recorded at 100MHz 13 C NMR spectrum, chemical shifts are referenced to residual protiated solvent. If CDCl 3 As a solvent, use tetramethylsilane (δ=0.00ppm) as the internal standard record 1 H NMR spectr...

preparation example

[0124] The manufacture of the device involved in the present invention adopts the conventional preparation method in the industry, and can be carried out in the following manner: first, select a suitable anode for introducing holes, and other materials can be evaporated on the surface of the anode to change the work function of the anode, and then organic layer, and then continue to evaporate the cathode to play the role of introducing electrons.

[0125] The organic layer can be one layer or multiple layers. Further, the organic layer includes a hole transport layer, a light emitting layer and an electron transport layer. The hole transport layer can also have a hole injection function, an electron blocking function or an exciton blocking function, and the electron transport layer can also have an electron injection function, a hole blocking function or an exciton blocking function, and the light-emitting layer can is a doped structure. When the light-emitting layer is a do...

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Abstract

The invention relates to the technical field of organic electroluminescence devices, and discloses a symmetrically-substituted aromatic amine compound and application thereof. The material is providedwith the structure as shown in a formula (I), wherein A is a naphthalene ring; n is an integer ranging from 1 to 5; Ar1 is substituted or unsubstituted benzene ring, nitrogen heterocyclic ring, and oxygen heterocyclic ring or sulphur heterocyclic ring. The compound is prepared by symmetrically substituting and synthesizing; the preparation method is simple and easy to carry out; and meanwhile, onthe basis of the cubic conformation of the compound body, the symmetricity of the compound is low; the naphthalene ring is planar and is treated as the conformational isomerism with the maximum stability; two carbazole containing parts are on the same side surface of the naphthalene ring, thus the symmetricity of the molecule body is low, and as a result, high film forming performance is ensured.The symmetrically substituted aromatic amine compound is applicable to the preparation of an OLED device and has the characteristics of being outstanding in performances, simple and convenient in synthesizing method, and suitable for commercial application.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent devices, in particular to a symmetrically substituted aromatic amine compound and its application. Background technique [0002] The classic device working mechanism in organic electroluminescent technology is: under the action of an electric field, electrons and holes are injected into the electron transport layer (ETL) and hole transport layer (HTL) through the cathode (Mg:Ag) and anode (ITO) respectively. ), and then transported to the emissive layer (EML) to recombine and emit light. [0003] Since the anode used in the current electroluminescence technology is basically ITO, the performance of the hole transport material has a very critical impact on the hole injection and transport efficiency. Due to the low ionization energy of aromatic amine compounds, which match well with the energy level of ITO, most of the currently known hole transport materials are aromatic amine ...

Claims

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Application Information

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IPC IPC(8): C07D209/86C07D209/88C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D209/86C07D209/88C09K2211/1029C09K2211/1007C09K2211/1014C09K2211/1011H10K85/626H10K85/615H10K50/12H10K85/6572H10K50/15
Inventor 黄达曹辰辉马腾达刘九州荆一铭
Owner AAC TECH NANJING
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