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Cuprous complex yellow phosphorescence material mixed by diphosphine and triazole

A technology of phosphorescent materials and complexes, applied in the field of luminescent materials and organic electroluminescent materials, can solve the problems of high cost, affect the promotion and application of OEL and market performance, etc., and achieve the effects of low production cost, good phosphorescent emission performance, and cheap purification.

Inactive Publication Date: 2018-11-13
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The orange / yellow phosphorescent materials currently on sale for OEL are all complexes of precious metal iridium and platinum. Although they have good performance, the high price also affects the promotion and application of OEL final products and market performance.

Method used

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  • Cuprous complex yellow phosphorescence material mixed by diphosphine and triazole
  • Cuprous complex yellow phosphorescence material mixed by diphosphine and triazole
  • Cuprous complex yellow phosphorescence material mixed by diphosphine and triazole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A large number of phosphorescent complex materials [Cu(BINAP)(1Htri) 2 ](PF 6 ) Crystal sample preparation: Weigh 0.037g (0.1mmol) of Cu(CH 3 EN) 4 PF 6 , 0.062g (0.1mmol) of BINAP, 0.014g (0.2mmol) of 1Htri; respectively mixed with 5ml of dichloromethane after dissolving, fully stirring to make it fully take place in the coordination reaction, to obtain a dark yellow clear solution; All solvents were removed by rotary evaporation under reduced pressure at room temperature, and yellow crystals were finally obtained as the luminescent material product with a yield of 93% (calculated as Cu).

Embodiment 2

[0028] Synthesis of Yellow Phosphorescent Complex Material [Cu(BINAP)(1Htri) 2 ](PF 6 ) single crystal: Weigh 0.037g (0.1mmol) of Cu(CH 3 EN) 4 PF 6 , 0.062g (0.1mmol) of BINAP, 0.014g (0.2mmol) of 1Htri; after dissolving with 5ml of methylene chloride, mix successively, fully stir to make it fully take place coordination reaction, obtain dark yellow clear solution; after filtration, Covering the upper layer of the solution with n-hexane promotes the crystallization of the product, and after standing for a few days, a large amount of yellow blocky crystals precipitate out. Pick a yellow block crystal with a size of 0.38mm*0.34mm*0.30mm for X-ray single crystal structure test. The molecular structure of the compound is shown in the attached figure 1 , and its unit cell packing structure is shown in the attached figure 2 .

[0029] For yellow phosphorescent complex material [Cu(BINAP)(1Htri) 2 ](PF 6 ) of pure-phase crystal samples were subjected to a series of perform...

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Abstract

The invention discloses a crystal-form cuprous complex yellow phosphorescence material mixed based on a 1,2,4-triazole ligand without removing a proton and a preparation method thereof. The phosphorescence complex is obtained by complexing cuprous salt and the ligands. A molecular structure of the phosphorescence complex is [Cu(BINAP)(1Htri)2](PF6), wherein BINAP is the electric neutrality diphosphine ligand of 1,1'-binaphthyl-2, 2'-bis-diphenylphosphine, and 1Htri is the nitrogen ligand of 1,2,4-triazole. The material is obtained by a direct mixing reaction of Cu(CH3CN)4PF6 and dichloromethane solution of the ligand, and has the advantages of simple and convenient process, simple device, easy acquisition of raw materials and low cost and the like. The material can be used as a photoluminescence yellow phosphorescence material, or used as a luminous layer phosphorescence material in an electroluminescence device formed by multiple layers of organic materials.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, to the fields of photoluminescent materials and electroluminescent materials, in particular to the field of organic electroluminescent materials. Background technique [0002] With the development of science and technology, the amount of information is increasing rapidly. With the development of high-capacity and high-speed information, people are increasingly aware of the limitations of electronic devices. Since the speed of photons is much faster than that of electrons, the frequency of light is much higher than that of radio waves; therefore, in order to increase the transmission speed, it is an inevitable trend for the carrier of information to change from electrons to photons. More and more functional materials with special photophysical and chemical properties have been studied, and have shown attractive application prospects in the fields of electroluminescent devices (LEDs)...

Claims

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Application Information

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IPC IPC(8): C07F1/08C07F9/50C09K11/06
CPCC07F1/08C07F9/5045C07F9/505C09K11/06C09K2211/188
Inventor 柴文祥朱秋梦宋莉秦来顺范美强史宏声魏钦华
Owner CHINA JILIANG UNIV
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