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Carbazolyl triarylamine hole transmission material and synthesis method thereof

A carbazolyl triarylamine, hole transport material technology, applied in the field of hole transport materials and their synthesis, can solve the problems affecting the application development of OLEDs, restrict the development of Mqn, etc., achieve excellent hole transport performance, and simple purification methods. Effect

Inactive Publication Date: 2015-05-20
SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability and film-forming properties of hole transport materials restrict the development of commercial production of Mqn, and ultimately affect the application development of OLEDs.

Method used

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  • Carbazolyl triarylamine hole transmission material and synthesis method thereof
  • Carbazolyl triarylamine hole transmission material and synthesis method thereof
  • Carbazolyl triarylamine hole transmission material and synthesis method thereof

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Embodiment Construction

[0047] Below in conjunction with accompanying drawing two-[3-(9-ethyl)-9H-carbazolyl]-[4-(3-(9-phenyl)-9H-carbazolyl)-phenyl] provided by the present invention The preparation method of amine will be described.

[0048] Example of a synthetic route to bis-[3-(9-ethyl)-9H-carbazolyl]-[4-(3-(9-phenyl)-9H-carbazolyl)-phenyl]amine:

[0049] Synthetic two-[3-(9-ethyl)-9H-carbazolyl]-[4-(3-(9-phenyl)-9H-carbazolyl)-phenyl]amine according to following reaction formula [0013 ]

[0050]

[0051]

[0052]

[0053] Ethyl carbazole specific synthesis operation method: Weigh 166.2 g carbazole, 112 g KOH, and then measure 831 ml dichloromethane, add it to a 3 L reaction three-necked flask, slowly raise the temperature to 40 °C under mechanical stirring, and wait until the carbazole is completely dissolved , Start to add 114.3g of bromoethane dropwise, keep the temperature at 30°C-40°C, and the dropwise addition time is 2~4h. When the carbazole content is less than 0.5%, the rea...

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Abstract

The invention relates to a carbazolyl triarylamine hole transmission material and a synthesis method thereof. The method comprises the following steps: 1) preparing ethylcarbazole; 2) preparing 3-bromo-N-ethyl-carbazole; 3) preparing 4-(N-phenyl-carbazolyl)aniline; and 4) preparing di-[3-(9-ethyl)-9H-carbazolyl]-[4-(3-(9-phenyl)-9H-carbazolyl)-phenyl]amine. The chemical general formula is disclosed in the specification, wherein Q1 is C2-C6 alkyl-substituted 9-site carbazolyl group, and Q2 is C2-C6 alkyl-substituted carbazolyl group or substituent group with the same structure as Q1. The synthesized compound has excellent hole transmission performance, and has potential application value.

Description

technical field [0001] The present invention relates to a hole transport material and its synthesis method, in particular to a bis-[3-(9-ethyl)-9H-carbazolyl]-[4-(3-(9-phenyl)- 9H-carbazolyl)-phenyl]amine and its synthesis method. Background technique [0002] The earliest organic electroluminescence (EL) phenomenon was discovered in 1963, when organic anthracene crystals were used as light-emitting materials. Since the driving voltage of the device was as high as 400V, and the efficiency and life of the device were not as good as inorganic electroluminescence devices, organic electroluminescence Luminescence did not attract enough attention at the time. In 1987, Tang and Vanslyke used the vacuum deposition coating method to use the aromatic amine derivative HTM1 as the hole transport layer for the first time, and 8-hydroxyquinoline aluminum as the light-emitting layer to realize green light emission. The organic electroluminescence technology is gradually mature and more a...

Claims

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Application Information

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IPC IPC(8): C07D209/88
CPCC07D209/88
Inventor 王亚龙
Owner SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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