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Organic compound, electronic device and corresponding preparation method

A technology of organic compounds and electronic devices, applied in organic chemistry, electrical solid devices, semiconductor/solid device manufacturing, etc., can solve problems such as functional layer mixing, unfavorable device luminescence, and not easy to dissolve and dissolve in solvents

Active Publication Date: 2022-04-15
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional solution processing methods can easily cause mixing between functional layers. For example, in solution-processed devices, hole injection layer materials such as PEDOT:PSS derivatives are water-soluble materials that are not easily absorbed by the hole transport layer. Solvent dissolves or miscible
The light-emitting layer material processed by the solution method is generally a polymer material with condensed aromatic hydrocarbons or polybenzene rings. The solvent for the light-emitting layer is generally an oil-soluble solvent, similar to solvents such as o-dichlorobenzene and o-xylene. The solvent may It will dissolve or partially dissolve the material of the hole transport layer, which will cause the excitons in the light-emitting layer to be quenched, which is not conducive to the light emission of the device

Method used

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  • Organic compound, electronic device and corresponding preparation method
  • Organic compound, electronic device and corresponding preparation method
  • Organic compound, electronic device and corresponding preparation method

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preparation example Construction

[0041] Further, the present invention also provides a method for preparing an organic compound, which comprises the following steps: making the compound with compound The reaction produces compound (a) Wherein, L is selected from alkyl groups containing or not containing heteroatoms, and R is halogen;

[0042] compound and The reaction produces compound (I) Wherein, Ar is selected from an aromatic ring group, an unsaturated heterocyclic group or an aromatic ring heterocyclic group.

[0043] In a specific example, the compound with compound Reaction generates in the step of compound (a), is in acetone (acetone) solvent, each reaction raw material is mixed with potassium carbonate (K 2 CO 3 ) reaction, the reaction equation is as follows:

[0044]

[0045] In a specific example, when the compound (a) is combined with In the step of generating compound (I) by reaction, in toluene (toluene) solvent, in tert-butylphosphine (P t Bu 3 ) and sodium tert-butoxid...

Embodiment 1-8

[0117] Organic light emitting diode devices 1-8 were respectively prepared by using compounds M1-8 as crosslinked host materials (crosslink-M) according to the above method for preparing organic light emitting diode devices.

[0118] The luminescent performance of the prepared device was measured by an IV-L test system, and the machine model of the test system used was F-star CS2000A instrument.

[0119] The performance of the device is shown in Table 1:

[0120] Table 1

[0121] part number Maximum current efficiency (cd / A) (CIE x ,CIE y )

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Abstract

The invention relates to an organic compound, an electronic device and a preparation method. The structural formula of the organic compound is as follows: the organic compound is a novel cross-linkable hole-transporting layer material based on phenazine units, specifically based on an aromatic ring group, an unsaturated heterocyclic group or an aromatic ring A cross-linkable hole transport layer material constructed with a heterocyclic group as the core, an electron-rich phenazine unit as the arm, and a vinyl group as the terminal. The organic compound can be dissolved in a conventional solvent at room temperature, and can be thermally cross-linked to form a cross-linked compound that is insoluble in a conventional solvent as a hole transport layer or doped in the light-emitting layer after film formation, and is not easily The solvent of the functional layer dissolves. The material is suitable for obtaining large-area and low-cost electronic devices by solution film formation.

Description

technical field [0001] The invention relates to the technical field of carrier transport materials, in particular to an organic compound, an electronic device and a corresponding preparation method. Background technique [0002] An organic light-emitting diode (OLED) device is a device that emits light by stacking a carrier injection layer, a carrier transport layer, and a light-emitting layer. Solution method processing and preparation of OLED devices, especially large-size OLED devices, has attracted the attention of many manufacturers due to its advantages of low cost and large-area preparation. However, the traditional solution processing method is easy to cause the mixing of functional layers, for example, in the solution processing type device, the hole injection layer material PEDOT:PSS derivatives are water-soluble materials, which are not easy to be absorbed by the hole transport layer. The solvent dissolves or miscibles occur. The light-emitting layer material pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D241/46C07D241/48H01L51/00H10K99/00
CPCC07D241/46C07D241/48H10K85/6572
Inventor 郑江波
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD