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Organic electroluminescence material and device

A technology of electroluminescent materials and luminescent materials, which is applied in the direction of luminescent materials, chemical instruments and methods, and the use of gas discharge lamps, and can solve problems such as making electroluminescent devices

Inactive Publication Date: 2004-09-01
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 8-hydroxyquinoline is insoluble in common organic solvents, and it is difficult to make electroluminescent devices through the uniform glue process. Therefore, the existing methods all use vacuum evaporation to achieve film formation.

Method used

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  • Organic electroluminescence material and device
  • Organic electroluminescence material and device
  • Organic electroluminescence material and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment one (synthesis of compound 1):

[0052] Preparation of chemical samples:

[0053] Get 10 grams of 5-chloromethyl-8-hydroxyquinoline hydrochloride and reflux reaction with 100 milliliters of methanol for 3 hours, and pour the reaction solution into 250 milliliters of water, and wash with sodium carbonate (Na 2 CO 3 ) solution, a large amount of solids were precipitated out, and then the solid product was suction filtered, washed with water, and recrystallized from n-hexane to obtain 8.3 grams of 5-methoxymethyl-8-hydroxyquinoline, with a melting point (mp) of 79-80°C.

[0054] Dissolve 3 grams of 5-methoxymethyl-8-hydroxyquinoline in a mixed solution of 20 milliliters of ethanol and 7 milliliters of water, add dropwise an aqueous solution containing 0.78 grams of aluminum chloride, stir for 20 minutes, and wash with Na 2 CO 3 (sodium carbonate) solution to adjust the pH value to 5-6 to precipitate a precipitate, pump the precipitate, wash with water to obta...

Embodiment 2

[0055] Embodiment two (synthesis of compound 2):

[0056] Compound sample preparation:

[0057] Follow the method for synthesizing compound 1, as long as methanol is replaced with ethanol, and the crude product is purified with a mixed solvent of ethanol and ether.

Embodiment 3

[0058] Embodiment three (synthesis of compound 3):

[0059] Compound sample preparation:

[0060] Follow the method for synthesizing compound 1, as long as methanol is replaced by n-propanol, and the crude product is purified with a mixed solvent of ethanol and ether.

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Abstract

The present invention relates to an organic electroluminescence material and its electroluminescence device. This invention adopts the introduction of group into 5-position of quinoline ring of aluminium 8-hydroxyquinolinate to design and synthesize the aluminium 8-hydroxyquinoliate derivative bioluminescence material which not only possesses good luminescence property and electronic transmission capacity, but also can be uniformly dissolved in organic polymer. According to luminescent colour it can be compounded and made into new luminescence material capable of giving various colour lights, including white light. This invented device is a single-layer compound functional film luminescent device.

Description

1. Technical field [0001] The invention relates to the technical field of electronic materials, in particular to organic electroluminescent materials and electroluminescent devices. 2. Background technology [0002] Organic electroluminescence (OEL) is a phenomenon in which organic materials are excited to emit light under the action of an external electric field, that is, an energy conversion method that directly converts electrical energy into light energy through organic materials. This is an emerging interdisciplinary subject that has only been developed rapidly in the past ten years. It involves the fields of organic functional materials, optoelectronic technology and physics, information and display materials and technologies. Because of its incomparable advantages as a flat-panel display over common displays, it has become a hot spot in international research today. [0003] As early as the 1960s, someone experimentally observed the blue electroluminescence of anthra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06
CPCY02B20/181Y02B20/00
Inventor 谢明贵杨占坤黄艳蒋青
Owner SICHUAN UNIV
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