A kind of quinoline derivatives and its application and organic electroluminescent device

A technology of quinolines and derivatives, applied in the field of organic electroluminescence, can solve the problems of reducing device life, easy crystallization or agglomeration, and reducing device efficiency, and achieves improved performance, triplet energy level, and wide energy gap. Effect

Active Publication Date: 2020-11-03
BEIJING ETERNAL MATERIAL TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Materials with low Tg temperature have poor thermal stability and are easy to crystallize or agglomerate, which will greatly reduce the life of the device and seriously reduce the efficiency of the device

Method used

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  • A kind of quinoline derivatives and its application and organic electroluminescent device
  • A kind of quinoline derivatives and its application and organic electroluminescent device
  • A kind of quinoline derivatives and its application and organic electroluminescent device

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preparation example Construction

[0056] Synthetic Example 1. The preparation of intermediate M1, its synthetic route is as follows:

[0057]

[0058] The specific operation steps are:

[0059] 1,5-diaminonaphthalene (20mmol, 3.16g) and methyl acrylate (60mmol, 5.16g), AlCl 3 (60mmol, 7.92g) were mixed and dissolved in 50ml xylene, slowly heated to reflux and stirred, and the end point of the reaction was monitored by thin-layer chromatography (TLC), and the reaction was completed in 5 hours. Quenched with water, extracted with toluene, the extract was concentrated, passed through a silica gel column, the eluent was petroleum ether:ethyl acetate=5:1, and the eluent was concentrated to obtain intermediate M1-A (4.3g, yield 65 wt. %).

[0060] Intermediate M1-A (12mmol, 4.0g) was dissolved in 40mL of propylene glycol phenyl ether acetate (PPA), and the temperature was raised to reflux and stirred for reaction. The end point of the reaction was monitored by TLC, and the reaction was completed in 2 hours. Th...

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Abstract

The present disclosure relates to a quinoline derivative and its application and an organic electroluminescent device. The quinoline derivative has a structure shown in the following general formula (1-1) or (1-2): the present disclosure The provided quinoline derivatives are applied to organic electroluminescent devices, which can reduce driving voltage, improve current efficiency, and improve device life.

Description

technical field [0001] The present disclosure relates to the field of organic electroluminescence, in particular to a quinoline derivative and its application and an organic electroluminescence device. Background technique [0002] In 1998, Professor Ma Yuguang of Jilin University doped poly-N-vinylcarbazole (PVK) with an osmium complex [Os(CN) 2 (PPh 3 ) 2 bpy] prepared an electrophosphorescent device (Synthetic Metals, 1998, 94:245-248). In the same year, Thomson and Forrest cooperated to dope the phosphorescent material platinum octaethylporphyrin (PtOEP) in 8-hydroxyquinoline aluminum (Alq3) as the light-emitting layer of the electroluminescent device, so that the internal quantum efficiency and external quantum efficiency were improved respectively. to 23% and 4% (Nature, 1998, 395:151-154; Appl. Phys. Lett., 1999, 75:4-6). Since then, organic light-emitting devices based on phosphorescent metal complexes have developed rapidly. Different from traditional organic s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D471/04C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D471/04C09K2211/1029C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1088H10K85/636H10K85/633H10K85/631H10K85/6574H10K85/6572H10K50/11H10K2102/00H10K2102/301
Inventor 孙恩涛高文正范洪涛张向慧
Owner BEIJING ETERNAL MATERIAL TECH
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