Unlock instant, AI-driven research and patent intelligence for your innovation.

Organic compound and electroluminescent application thereof

An organic compound, unsubstituted technology, applied in the field of organic electroluminescent materials, which can solve the problems of device electron and hole mobility imbalance, device efficiency and life decline, and electron transport performance degradation, etc., and achieve high triplet energy level. , the effect of high electron mobility, the ability to improve the ability of electron injection and transport

Active Publication Date: 2021-12-03
WUHAN TIANMA MICRO ELECTRONICS CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the electron transport material is crystallized, the intermolecular charge transition mechanism will be different from the normal operation of the amorphous film mechanism, resulting in a decrease in the performance of electron transport, making the electron and hole mobility of the entire device unbalanced, and the exciton formation efficiency. greatly reduced, and the formation of excitons will be concentrated at the interface between the electron transport layer and the light-emitting layer, resulting in a serious decrease in device efficiency and lifetime

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic compound and electroluminescent application thereof
  • Organic compound and electroluminescent application thereof
  • Organic compound and electroluminescent application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1: the synthesis of compound shown in formula (7)

[0060]

[0061] In a round bottom flask, add intermediate 1-3 (4mmol), compound e (6mmol) and Pd(PPh 3 ) 4 (0.3mmol) was added to a mixture of toluene (180mL) / ethanol (150mL) and potassium carbonate (15mmol) aqueous solution (10mL), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude The product obtains the compound shown in the target product formula (7).

[0062] The characterization result of the compound shown in formula (7): Molecular formula C 40 h 21 N 3 o 2 S 2 ;

[0063] ESI-MS(m / z)[M+1] analyzed by liquid chromatography-mass spectrometry + : The theoretical value is 640.11, and the test value is 639.95;

[0064] E...

Embodiment 2

[0065] Embodiment 2: the synthesis of compound shown in formula (11)

[0066]

[0067] In a round bottom flask, add intermediate 1-3 (4mmol), compound f (6mmol) and Pd(PPh 3 ) 4 (0.3mmol) was added to a mixture of toluene (200mL) / ethanol (150mL) and potassium carbonate (15mmol) aqueous solution (10mL), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude The product obtains the compound represented by the target product formula (11).

[0068] Characterization results of the compound shown in formula (11): Molecular formula C 46 h 25 N 3 o 2 S 2 ;

[0069] ESI-MS(m / z)[M+1] analyzed by liquid chromatography-mass spectrometry + : The theoretical value is 716.14, and the test value is 716.19;

[0...

Embodiment 3

[0071] Embodiment 3: the synthesis of compound shown in formula (19)

[0072]

[0073] In a round bottom flask, add intermediate 1-3 (4mmol), compound g (6mmol) and Pd(PPh 3 ) 4 (0.4mmol) was added to a mixture of toluene (180mL) / ethanol (150mL) and potassium carbonate (15mmol) aqueous solution (12mL), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude The product obtains the compound represented by the target product formula (19).

[0074] Characterization results of the compound shown in formula (19): Molecular formula C 45 h 24 N 2 o 2 S 2 ;

[0075] ESI-MS(m / z)[M+1] analyzed by liquid chromatography-mass spectrometry + : The theoretical value is 689.13, and the test value is 689.10;

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides an organic compound. The organic compound has a structure as shown in a formula (I). The invention provides the S and O-containing electron transport material with the spiro-like structure, the electron transport material has proper HOMO and lower LUMO value, and the electron injection and transmission capability can be improved; and meanwhile, the organic compound has relatively high triplet state energy level, high electron mobility and excellent thermal stability and film stability, and is beneficial to improving the luminous efficiency when being used for an organic light-emitting device.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and relates to an organic compound and its application. Background technique [0002] The electron transport material used in traditional electroluminescent devices is 8-hydroxyquinoline aluminum (Alq3), but the electron mobility of Alq3 is relatively low (about 10 ~ 6cm 2 / Vs), which makes the electron transport and hole transport of the device unbalanced. With the commercialization and practical application of electroluminescent devices, people hope to obtain ETL materials with higher transmission efficiency and better performance. In this field, researchers have done a lot of exploratory work. [0003] The patent No. of LG Chem is WO2007 / 011170Al and the Chinese patent with publication No. CN101003508A respectively discloses a series of derivatives of naphthimidazole and pyrene, which are used as electron transport and injection materials in electroluminescent dev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D495/22H01L51/54H01L51/50
CPCC07D495/22H10K85/6565H10K85/615H10K85/654H10K85/657H10K85/6572H10K50/16Y02E10/549
Inventor 过宇阳刘营邓东阳张磊
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD