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Iridium complex, preparation method, and application thereof

An iridium complex and coordination technology, applied in indium organic compounds, chemical instruments and methods, platinum group organic compounds, etc., can solve problems such as poor carrier transport ability, and achieve good carrier transport ability and chemical properties. Stable, high synthetic yield effect

Inactive Publication Date: 2020-03-10
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide an iridium complex and its preparation method and application, aiming to solve the problem of poor carrier transport ability in existing luminescent materials

Method used

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  • Iridium complex, preparation method, and application thereof
  • Iridium complex, preparation method, and application thereof
  • Iridium complex, preparation method, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Preparation of THF solution of lithium salt of thioamide substituted with auxiliary ligand isopropyl diphenylamino group

[0073] Diphenylamine and n-butyl lithium are reacted to extract hydrogen in THF solution at low temperature, and then reacted with isopropyl isothiocyanate to obtain the lithium salt THF solution of isopropyl diphenylamino thioamide Directly used in the next step of the synthesis of complex reaction.

[0074] The above method can be used to prepare other thioamide lithium salt THF solutions:

[0075]

Embodiment 2

[0076] Example 2 Preparation of the iridium complex of the present invention

[0077] Combine the main ligand 1-(4-(trifluoromethyl)phenyl)isoquinoline and IrCl 3 Reflux in the ethoxyethanol solution at a ratio of 2:1 for 10 hours, cool and filter to obtain the chlorine bridge complex of iridium; then 10mmol (15.43g) of the chlorine bridge complex and 20mmol of isopropyl diphenylamino thioamide The THF solution of the lithium salt was stirred in the ethylene glycol dimethyl ether solution at room temperature for one hour to obtain the crude product of the iridium complex. The column chromatography obtained 16.11 g of pure Samc 8 (yield: 80%). And further put 5gSamc 8 in the quartz tube, at 10 -5 Under Pa vacuum conditions, it was purified by heating and sublimation to obtain 3.5 g of luminescent material (sublimation rate 70%) meeting the requirements of the preparation device. The response is as follows:

[0078]

[0079] The obtained iridium complex Samc 8 was analyzed by hydrog...

Embodiment 3

[0089] Example 3 Preparation of iridium complex Samc 8 organic electroluminescent device

[0090] The preparation of the organic electroluminescent device with Samc 8 as the emission center of the luminescent layer is taken as an example to illustrate the preparation of the organic electroluminescent device of the present invention. The structure of OLEDs devices includes: substrate, anode, hole injection material, hole transport layer, organic light emitting layer, electron transport layer, electron injection material and cathode. The substrate is glass, the anode is indium tin oxide, and the hole injection layer is 2,3,6,7,10,11-hexacyano-1,4,5,8,9,12-hexaazabenzene Phenanthrene HAT-CN (5nm), the evaporation rate is 0.05nm / s; the hole layer uses 4,4'-cyclohexylbis[N,N-bis(4-methylphenyl)aniline TAPC material (55nm) , The evaporation rate is 0.05nm / s; the electron transport layer uses 1,3,5-tris[(3-pyridyl)-3-phenyl]benzene TmPyPB (55nm), and the evaporation rate is 0.05nm / s; e...

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PUM

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Abstract

The invention discloses an iridium complex, a preparation method, and an application thereof. The iridium complex has the structure as the specification, wherein the coordinated group in the section Cis selected from: phenyl, pyridyl, thienyl and pyrimidinyl; the coordinated group in the section N is selected from: pyridyl, pyrimidinyl, pyridazinyl, triazinyl, thiazolyl, imidazolyl, quinolyl, isoquinolyl, quinazolinyl or pteridinyl; the R1 is selected from: alkane derivatives, ether derivatives, halogenated hydrocarbon derivatives, ketone derivatives, benzene derivatives, pyridine derivativesand naphthalene derivatives; R2 is selected from: alcohol derivatives, amine derivatives, benzene derivatives, pyridine derivatives, pyrimidine derivatives, diphenylamine derivatives, carbazole derivatives, carboline derivatives, 9,10-dihydroacridine derivatives, phenoxazine derivatives, phenothiazine derivatives, and azole derivatives. The iridium complex has high carrier transport capability, is easy to synthesize, has stable chemical properties, and is easy to sublimate and purify.

Description

Technical field [0001] The invention relates to the technical field of light-emitting devices, in particular to an iridium complex and its preparation method and application. Background technique [0002] Against the background of increasing global energy demand and the worrying ecological environment, governments of various countries have vigorously developed high-tech-based sustainable energy-saving technologies and industries. Organic light-emitting diodes (Organic Light-emitting Diodes, referred to as OLEDs), also known as organic light-emitting diodes, are devices that convert electrical energy into light energy by applying voltage to them. Since Dr. Qingyun Deng of Kodak Company of the United States published a low-voltage start-up, high-efficiency and high-brightness small molecule organic thin-film double-layer structure OLED in 1987, the research on electroluminescent materials and devices has aroused great interest in the world's scientific and technological circles and...

Claims

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Application Information

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IPC IPC(8): C07F15/00C09K11/06H01L51/54
CPCC07F15/0033C09K11/06C09K2211/185C09K2211/1029C09K2211/1007C09K2211/1044C09K2211/1011C09K2211/1048C09K2211/1074C09K2211/1033H10K85/342
Inventor 杨楚罗陆光照
Owner SHENZHEN UNIV
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