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Novel iridium complex, organic light-emitting device, and image display apparatus

一种有机发光器件、铱络合物的技术，应用在铱络合物领域，能够解决衍生物不具有特性等问题，达到优异发光性能的效果

Inactive Publication Date: 2012-08-22
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although derivatives of this compound into which various substituents are introduced are being studied, none of the derivatives have desirable properties (Patent Document 1)

Method used

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  • Novel iridium complex, organic light-emitting device, and image display apparatus
  • Novel iridium complex, organic light-emitting device, and image display apparatus
  • Novel iridium complex, organic light-emitting device, and image display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0169] Synthesis of exemplary compound pp1-1

[0170] [chemical formula 19]

[0171]

[0172] [chemical formula 20]

[0173]

[0174] [chemical formula 21]

[0175]

[0176] Synthesis of Intermediate 1-2

[0177] 40.0 g (216.9 mmol) of compound 1-1 and 1.5 g (7.88 mol) of copper(I) chloride were dissolved in 150 ml of dehydrated tetrahydrofuran. 210 ml (420.0 mmol) of tert-butylmagnesium chloride (23% tetrahydrofuran solution) was added dropwise to the solution at -5°C. After the dropwise addition was complete, the solution was stirred at 0°C for three hours. 30ml of water were added to the solution. After the reaction was complete, the solution was filtered through Celite. The organic layer was extracted with ethyl acetate, dried over anhydrous sodium sulfate, and concentrated. The concentrate was purified by a silica gel column (developing solvent: heptane / ethyl acetate=4 / 1) to prepare 41.2 g (yield 83.3%) of Compound 1-2.

[0178] Synthesis of Intermediates 1...

Embodiment 2

[0213] An organic light emitting device was fabricated in the following manner.

[0214] An indium tin oxide (ITO) film having a thickness of 120 nm was formed as an anode on a glass substrate by sputtering. This substrate was used as a transparent conductive support substrate. The transparent conductive support substrate was ultrasonically cleaned in acetone, then in isopropanol (IPA), washed in boiling IPA, and dried. The transparent conductive support substrate was then subjected to UV / ozone cleaning.

[0215] A 0.3% by weight chloroform solution of Compound 2-1 described below was spin-coated on this substrate at 1000 rpm for 40 seconds to form a hole injection layer having a thickness of 30 nm. Compound 2-2 described below was then deposited by a vacuum evaporation method to form a hole transport layer having a thickness of 20 nm. In vacuum evaporation, the vacuum degree is 1.0x10 -4 Pa, and the deposition rate is 0.1 nm / sec.

[0216] On the hole transport layer, the...

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Abstract

There is provided a novel iridium complex having a small half-width of an emission spectrum and an organic light-emitting device that contains the iridium complex. There is provided a novel iridium complex that has a phenyl ring and a pyrazole ring as ligands and that has a basic skeleton in which the phenyl ring is bonded to a triazine ring.

Description

technical field [0001] The invention relates to an iridium complex, an organic light-emitting device containing the iridium complex and an image display device containing the iridium complex. Background technique [0002] Organic light emitting devices are being actively developed. In the development of organic light-emitting devices, new phosphorescent materials are being developed. Non-Patent Document 1 describes an iridium complex having the following structural formula. Patent Document 1 describes derivatives of this compound into which various substituents have been introduced. [0003] [chemical formula 1] [0004] [0005] The known compound Ir(Ppz) has the formula 3 , emit blue light at low temperature, but not at room temperature (Non-Patent Document 1). Although derivatives of this compound into which various substituents have been introduced are being studied, none of the derivatives has desired characteristics (Patent Document 1). [0006] reference list...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50H10K99/00
CPCC07F15/0033C09K2211/1003C09K2211/1044C09K2211/1059C09K2211/185H05B33/14C09K11/06H10K85/631H10K85/636H10K85/654H10K85/6572H10K85/342H10K50/11H10K2101/10H10K2102/103
Inventor 安部滋干桥本雅司西浦千晶新田浩也
Owner CANON KK
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