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Electronic transmission material and its preparation method and use

A technology of electron transport materials and electron transport layers, which is applied in the direction of circuits, electrical components, electric solid devices, etc., can solve the problems of rare electron transport materials, achieve high-efficiency electroluminescence performance, high fluorescence quantum efficiency, and avoid compactness. cumulative effect

Active Publication Date: 2016-08-10
VALIANT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there are many electron transport materials for organic light-emitting devices, there are not many electron transport materials that can meet the above conditions.

Method used

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  • Electronic transmission material and its preparation method and use
  • Electronic transmission material and its preparation method and use
  • Electronic transmission material and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 110

[0047] Synthesis of embodiment 110,13-bis (2-naphthyl) benzindole [1,2,3-gh] [1,10] phenanthroline (compound 1):

[0048]

[0049] Preparation of compound 1:

[0050] Take 10,13-dibromobenzindole [1,2,3-gh] [1,10] phenanthroline (4.6g, 10.0mmol), 2-naphthylboronic acid (3.8g, 22.0mmol), potassium carbonate (4.2g, 30.0mmol) and 10g of water were dissolved with 60mL of toluene and 30mL of ethanol, and stirred under nitrogen gas for 1 hour to remove the oxygen in the reaction flask. Then add Pd(PPh3) 40.230g (2.0mmol), reflux under vigorous stirring, and the reaction process is tracked and detected by TLC. After the reaction was completed, the aqueous phase was extracted with 200 mL of ethyl acetate, and the organic phase was desolvated under reduced pressure until there was no fraction. The residue was purified by column chromatography with pure toluene, and then recrystallized by toluene ethanol to obtain compound 1 (3.9 g, 70.14%) . The crude product was further sublimat...

Embodiment 213

[0051] Example 21 3-(2-naphthyl)-10-(4-(2-naphthyl)phenyl)benzindole[1,2,3-gh][1,10]phenanthroline (compound 2) Synthesis:

[0052]

[0053] Preparation of Compound A:

[0054] Take 10,13-dibromobenzindole [1,2,3-gh] [1,10] phenanthroline (4.6g, 10.0mmol), 2-naphthylboronic acid (1.4g, 8.0mmol), potassium carbonate (2.1g, 15.0mmol) and 10g of water were dissolved with 60mL of toluene and 30mL of ethanol, and stirred under nitrogen gas for 1 hour to remove the oxygen in the reaction flask. Then add Pd(PPh3) 40.115g (1.0mmol), reflux under vigorous stirring, and the reaction process is tracked and detected by TLC. After the reaction was completed, the aqueous phase was extracted with 200 mL of ethyl acetate, and the organic phase was desolvated under reduced pressure until there was no fraction. The residue was purified by column chromatography with pure toluene, and recrystallized by toluene ethanol to obtain compound A (2.4 g, 46.80%) .

[0055] Preparation of compound ...

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Abstract

The invention relates to an electronic transmission material. The electronic transmission material comprises a compound shown in the formula I. In the formula I, R1 and R2 respectively represent a nitrogen or oxygen atom-containing heterocyclic structure group or a C5-C60 polycyclic aromatic conjugated structural group. The electronic transmission material can be used in an organic electroluminescent device and has high efficiency electroluminescent performances.

Description

technical field [0001] The invention relates to a novel electron transport material, in particular to the preparation of an electron transport material for an organic electroluminescent device (OLED) and the application of the material in an organic electroluminescent device. Background technique [0002] In recent years, organic light emitting diodes (organic light emitting diode, OLED) have become a very popular emerging flat-panel display at home and abroad, because OLED displays have self-illumination, wide viewing angle (up to 175°C or more), short response time, high luminous efficiency, Wide color gamut, low operating voltage (3-10V), thin panel, large-size and flexible panel can be produced, and simple manufacturing process, and it has the potential of low cost. It is considered to be the star of the next generation of ultra-thin flat panel display devices. Although many research institutions and companies around the world have invested a lot of energy in the resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D471/06H01L51/54
CPCC07D471/06H10K85/626H10K85/615H10K85/631H10K85/654H10K85/6574H10K85/6572
Inventor 林存生王子宁张善国孙晟源慈振华付文岗
Owner VALIANT CO LTD
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