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Electroluminescent organic material

A technology for electroluminescent materials and luminescent materials, applied in luminescent materials, chemical instruments and methods, etc., can solve the problem of high cost, and achieve the effects of improving service life, easy raw materials, and simple preparation process

Inactive Publication Date: 2002-09-18
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material has been widely used in the industry, but its disadvantage is that it can only be prepared into an amorphous film by high vacuum evaporation method, which leads to a high cost of application of this material

Method used

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  • Electroluminescent organic material

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The organic electroluminescent material in this embodiment is a blue luminescent material, and its preparation process is as follows:

[0023] 1. Preparation of Ligands

[0024] (1) 0.05mol 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetracarboxymethoxy calix[4] was dissolved in excess thionyl chloride, heated to reflux for 2 hours, After cooling, remove excess thionyl chloride to obtain 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrachloroformylmethoxy calix [4];

[0025] (2) Dissolve 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrachloroformylmethoxy calix[4] in CH 2 Cl 2 , and then the above solution was added dropwise to the CH of 0.2mol salicylaldehyde acetal 2-hydroxyethylamine 2 Cl 2 In the solution, add pyridine dropwise at the same time to keep the reaction solution alkaline, and the reaction is carried out under stirring, and the temperature is room temperature until the reaction is complete;

[0026] (3) Add 200ml water, use 3×100ml CH 2 Cl 2 Extracted with anh...

Embodiment 2

[0031] The organic electroluminescent material in this embodiment is a blue-green luminescent material, and its preparation process is as follows:

[0032] 1. Preparation of Ligands

[0033] The process flow and relevant parameters of ligand preparation are the same as in Example 1, see Example 1.

[0034] 2. Ligand and Be 2+ Complexation

[0035] 10mL 0.5mol / L ligand ethanol solution and 20mL 0.5mol / L BeSO 4 The aqueous solution was placed in a reaction vessel, magnetically stirred and refluxed for 4 hours, then 25ml of solvent was evaporated, and n-hexane was added to precipitate the reaction product, which was filtered by suction, washed with water, and dried to obtain a blue-green organic electroluminescent material with a melting point of > 250°C ( decomposition); IR(KBr, cm -1 ): 1650 (C=O), 1620 (C=N). Its structure is as follows:

[0036] The blue-green organic electroluminescent material in this embodiment is in the visible light region, and its solution fluor...

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Abstract

An electroluminescent organic material is prepared through complexing the cupular arylhydrocarbon derivative with 2-valence metal ions. Its light colour is determined by the complexed metal ion. It can be used to make electroluminescent device through dissolving in solvent and rotary coating.

Description

1. Technical field [0001] The invention belongs to electroluminescent materials, in particular to an organic luminescent material. 2. Background technology [0002] Organic electroluminescent material is a new type of luminescent material. Due to its broad application prospects in electroluminescent devices, it has become a research hotspot in various countries in the past ten years, and many research results have been produced. [0003] The metal-methylidene amine series complex is an organic electroluminescent material including blue, yellow and other colors, and its structure is as follows: [0004] In the above structural formula, R is -(CH 2 ) 6 -1AZM-Hex or -(CH 2 ) 7 -1AZM-Hep or -(CH 2 ) 9 -1AZM-No or -C 6 h 4 -1AZM-Ph. This material has been widely used in the industry, but its disadvantage is that it can only be prepared into an amorphous film by high vacuum evaporation, which leads to a high cost of application of this material. [0005] Chinese patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06
Inventor 谢明贵魏孝强卢志云黄艳蒋青
Owner SICHUAN UNIV