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Organic electroluminescence material and organic light-emitting diode

A technology for electroluminescent materials and organic light-emitting devices, which is applied in the directions of organic light-emitting devices, light-emitting materials, and materials of organic semiconductor devices, etc., can solve the problems of low performance and large energy difference of blue light-emitting materials, and achieve the effect of prolonging life.

Inactive Publication Date: 2018-02-27
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large energy range difference of blue light-emitting materials, the performance of blue light-emitting materials is lower than that of green and red light.

Method used

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  • Organic electroluminescence material and organic light-emitting diode
  • Organic electroluminescence material and organic light-emitting diode
  • Organic electroluminescence material and organic light-emitting diode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: 1 synthesis of compound

[0047]

[0048] Step1. Add 100mmol formyl chloride to anhydrous THF, add a THF solution of phenylmagnesium bromide dropwise, and react the mixture at room temperature for 2h. Ice water was added, stirred, and the reaction solution was extracted with dichloromethane and dried. The obtained crude product was subjected to column chromatography to obtain 80 mmol of product 1-1. Yield 80%

[0049] Step2. Under the protection of nitrogen, 96mmol of triphenylphosphine bromide was dissolved by adding an appropriate amount of anhydrous THF, then cooled to 0°C, and 1.2 equivalents of potassium tert-butoxide was added, and the reaction was kept for 1 hour, and 1-1 80mmol was quickly added dropwise. The THF solution was slowly warmed to room temperature and reacted overnight. After the reaction was completed, most of the reaction solution was concentrated, then passed through a thin Celite column, and continued to concentrate to dryness...

Embodiment 2

[0051] Embodiment 2: 2 synthesis of compound

[0052]

[0053] Step1. Add 100mmol formyl chloride to anhydrous THF, add a THF solution of phenylmagnesium bromide dropwise, and react the mixture at room temperature for 2h. Ice water was added, stirred, and the reaction solution was extracted with dichloromethane and dried. The obtained crude product was subjected to column chromatography to obtain 80 mmol of product 1-1. Yield 80%

[0054]Step2. Under the protection of nitrogen, 96mmol of triphenylphosphine bromide was dissolved by adding an appropriate amount of anhydrous THF, then cooled to 0°C, and 1.2 equivalents of potassium tert-butoxide was added, and the reaction was kept for 1 hour, and 1-1 80mmol was quickly added dropwise. The THF solution was slowly warmed to room temperature and reacted overnight. After the reaction was completed, most of the reaction solution was concentrated, then passed through a thin Celite column, and continued to concentrate to dryness ...

Embodiment 3

[0056] Embodiment 3: 3 synthesis of compound

[0057]

[0058] Step1. Add 100mmol formyl chloride to anhydrous THF, add a THF solution of phenylmagnesium bromide dropwise, and react the mixture at room temperature for 2h. Ice water was added, stirred, and the reaction solution was extracted with dichloromethane and dried. The obtained crude product was subjected to column chromatography to obtain 80 mmol of product 1-1. Yield 80%

[0059] Step2. Under the protection of nitrogen, 96mmol of triphenylphosphine bromide was dissolved by adding an appropriate amount of anhydrous THF, then cooled to 0°C, and 1.2 equivalents of potassium tert-butoxide was added, and the reaction was kept for 1 hour, and 1-1 80mmol was quickly added dropwise. The THF solution was slowly warmed to room temperature and reacted overnight. After the reaction was completed, most of the reaction solution was concentrated, then passed through a thin Celite column, and continued to concentrate to dryness...

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Abstract

The invention provides an organic electroluminescence material and an organic light-emitting diode, which belong to the technical field of organic photoelectric materials. The material has a general structural formula as shown in a formula A; a mother nucleus part of the material is of dinaphthalene, dianthranide, benzophenanthrene, pyrene and other structures; the material has a blue-black emission spectrum; a conjugate range in a molecule is enlarged through a double bond, the bandwidth is adjusted, and a light-emitting range is turned into sky blue from blue black. An experimental result shows that by adopting the organic light-emitting diode prepared by the organic electroluminescence material, the light-emitting efficiency is 5.9cd / A maximally, the service life is remarkably prolonged, and the material is an excellent OLED (Organic Light-emitting Diode) material.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic electroluminescent material and an organic light emitting device. Background technique [0002] Full-color display requires red light, green light and blue light materials with relatively stable emission and high color purity. In full-color OLEDs, the blue light-emitting layer can not only effectively reduce the energy loss of the device, but also generate other colors of light by reducing the energy to lower-level fluorescence or phosphorescence. However, due to the large energy range difference of blue light emitting materials, the performance of blue light emitting materials is lower than that of green light and red light. On the other hand, it is very difficult to achieve high-efficiency deep blue phosphorescent emission. According to the regulations, CIE should have a y value of less than 0.15 and an x+y value of less than 0.3. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07C15/38C07C15/28C07C15/24C07C43/263C07C321/30C07D307/91C07D333/76C07C211/54C07D209/86C07D219/02H01L51/54H01L51/50
CPCC09K11/06C07C15/24C07C15/28C07C15/38C07C43/263C07C211/54C07C321/30C07D209/86C07D219/02C07D307/91C07D333/76C09K2211/1029C09K2211/1088C09K2211/1092C09K2211/1007C09K2211/1011H10K85/622H10K85/626H10K85/6572H10K85/6574H10K85/6576H10K50/11H10K2102/00H10K2102/301
Inventor 孙可一蔡辉
Owner CHANGCHUN HYPERIONS TECH CO LTD
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