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Triarylamine derivative and use of same

A technology of triarylamine and its derivatives, which is applied in the field of triarylamine derivatives and their utilization, can solve the problems that triarylamine derivatives have not been reported, and achieve the effect of excellent brightness characteristics

Active Publication Date: 2016-11-16
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on triarylamine derivatives used for the same purpose

Method used

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  • Triarylamine derivative and use of same
  • Triarylamine derivative and use of same
  • Triarylamine derivative and use of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0246] [Example 1] Synthesis of Triarylamine Derivative A

[0247] According to the following reaction formula, the triarylamine derivative A represented by the formula (1-31) was synthesized.

[0248] [chemical 15]

[0249]

[0250] 15.0 g of 4,4'-(perfluoropropane-2,2-diyl)diphenylamine, 0.52 g of bis(benzylideneacetone)palladium, and 19.0 g of sodium tert-butoxide were added to the flask, and after nitrogen replacement, the To this was added 260 mL of toluene, 21.0 mL of bromobenzene, and 2.60 mL of a toluene solution of tri-tert-butylphosphine prepared in advance (concentration: 0.143 g / mL), and stirred at 50° C. for 2 hours.

[0251] After the stirring, the reaction mixture was left to cool to room temperature, and the cooled mixture was filtered. Then, a liquid separation process was performed using the filtrate and saturated saline.

[0252] Next, the obtained organic layer was dried over sodium sulfate, activated carbon was added to the dried organic layer, and t...

Embodiment 2-1

[0257] Dissolve 0.106 g of oligoaniline derivative represented by formula (f) as a charge-transporting substance and 0.636 g of phosphotungstic acid as a dopant in 1,3-dimethyl-2-imidazolidinone in a nitrogen atmosphere 8g. To the obtained solution, 12 g of cyclohexanol and 4 g of propylene glycol were added and stirred, and 0.074 g of triarylamine derivative A was added thereto and stirred again to prepare a charge-transporting varnish. In addition, the oligoaniline derivative represented by formula (f) was synthesize|combined by the method of International Publication No. 2013 / 084664.

[0258] [chemical 16]

[0259]

Embodiment 3-1

[0264] The varnish prepared in Example 2-1 was coated on the ITO substrate using a spin coater, then dried at 50°C for 5 minutes, and then baked at 230°C for 15 minutes in the atmosphere, and then coated on the ITO substrate A uniform thin film of 30 nm was formed on it. As the ITO substrate, a glass substrate of 25 mm × 25 mm × 0.7 t, which was patterned with indium tin oxide (ITO) on the surface with a film thickness of 150 nm, was used before use. 2 A plasma scrubber (150W, 30 seconds) removes impurities on the surface.

[0265] Next, use a vapor deposition device (vacuum degree 1.0×10 -5 Pa), a thin film of α-NPD and aluminum was sequentially laminated on the ITO substrate on which the thin film was formed, to obtain a two-layer element. At this time, both α-NPD and aluminum were vapor-deposited at the respective vapor-deposition rates of 0.2 nm / sec, and the film thicknesses were 30 nm and 100 nm, respectively.

[0266] In addition, in order to prevent deterioration of ...

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Abstract

Provided is a triarylamine derivative represented by formula (1). (In the formula, Ar1-Ar4 each independently represent a phenyl group, 1-naphthyl group, 2-naphthyl group, 1-anthryl group, 2-anthryl group, 9-anthryl group, 1-phenanthryl group, 2-phenanthryl group, 3-phenanthryl group, 4-phenanthryl group, or 9-phenanthryl group, and X represents a divalent group represented by formula (2). (In the formula, A represents a C1-C6 fluoroalkanediyl group.))

Description

technical field [0001] The present invention relates to triarylamine derivatives and their utilization. Background technique [0002] The practical application of organic electroluminescent (EL) elements in the fields of displays and lighting is expected, and various research and development related to materials and element structures are being conducted in order to achieve low-voltage driving, high brightness, and long life. . [0003] Multilayer functional thin films are used in organic EL elements. The hole injection layer and hole transport layer constituting these functional thin films are responsible for the transfer of charges from the anode to the light-emitting layer, and are used to realize low-voltage drive and organic EL elements. Important feature of high brightness. [0004] The methods for forming such layers are broadly divided into dry methods represented by vapor deposition and wet methods represented by spin coating methods. Comparing these methods, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/54C07C209/10C09K11/06H01L51/50C07B61/00H10K99/00
CPCC07C211/54C07C211/56H05B33/20H10K85/631H10K85/324H10K50/156H10K50/17
Inventor 中泽太一古贺春香
Owner NISSAN CHEM IND LTD
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