A copper iodide phosphine complex luminescent material containing cu4i4 cluster core

A technology of luminescent materials and complexes, which is applied in the field of luminescent materials and organic electroluminescent materials, can solve the problems that the luminous intensity cannot meet the application requirements, affect the promotion and application and market performance, and expensive prices, etc., and achieve energy transfer efficiency. Low production cost and the effect of suppressing non-radiative attenuation

Inactive Publication Date: 2017-01-11
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] To analyze more specifically, the yellow / green phosphorescent materials currently on sale for OLEDs are all complexes of noble metals such as iridium and platinum. Although they have performed well in terms of performance, their expensive prices also affect the final OLED. Product promotion, application and market performance
The use of Cu(I) complexes as yellow / green phosphorescent materials has a long history (N. Armaroli, G. Accorsi, F. Cardinali, A. Listorti, Top. Curr. Chem. 2007, 280, 69-115.) , this cheap Cu(I) complex luminescent material can be conveniently prepared from Cu(I) salt and suitable organic ligands, but its luminous intensity cannot meet the application requirements in the OLED working temperature range.

Method used

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  • A copper iodide phosphine complex luminescent material containing cu4i4 cluster core
  • A copper iodide phosphine complex luminescent material containing cu4i4 cluster core
  • A copper iodide phosphine complex luminescent material containing cu4i4 cluster core

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Experimental program
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Effect test

Embodiment 1

[0030] Preparation of a large number of microcrystalline samples: Weigh 0.3mmol of cuprous iodide and dissolve it in 10mL of acetonitrile to obtain solution A, weigh 0.3mmol of m-anisyl 3 The P ligand was dissolved in 10 mL of dichloromethane to obtain solution B, and solution A and solution B were mixed, and stirred to make the coordination reaction fully occur, and finally the resulting colorless solution was filtered, and all solvents were removed by rotary evaporation, and vacuum-dried. The colorless crystalline powder was obtained as the product, and the yield was 96% (calculated as Cu).

Embodiment 2

[0032] Synthesis of Cu(I) Complex Cu 4 I 4 (m-anisyl 3 P) 4 single crystal: 0.1 mmol of cuprous iodide was dissolved in 4 mL of acetonitrile to obtain solution A, and 0.1 mmol of m-anisyl was weighed 3 The P ligand was dissolved in 6mL of dichloromethane to obtain solution B. Mix solution A and solution B, and stir to make it fully undergo a coordination reaction. Finally, filter the resulting colorless solution, and cover the filtrate with n-hexane to promote crystallization of the product. After standing for several days, a large number of colorless blocky crystals were precipitated. A colorless crystal with a size of 0.49mm×0.48mm×0.43mm was selected 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 .

[0033] For the complex Cu 4 I 4 (m-anisyl 3 P) 4 A series of performance tests were carried out on pure phase crystal samples....

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Abstract

The invention discloses a yellow green phosphorescent complex light-emitting material containing a Cu4I4 cubane cluster core and a preparation method of the yellow green phosphorescent complex light-emitting material. The phosphorescent complex is prepared by complexing copper iodide and a P-containing ligand and has a molecular structure as follows: Cu4I4(m-anisyl3P)4, wherein m-anisyl3P in the formula is a P-containing ligand electric-neutral tri(m-methoxyphenyl)phosphorus. The complex is not only easily purified because of being micromolecular and high in light-emitting efficiency, but also is easily dissolved by using an organic solvent. The material is obtained by directly mixing copper iodide and a P-containing ligand solution and reacting and has the advantages that the process is simple and convenient, the equipment is simple, raw materials are available, the cost is low and the like. The material can be used as a photoluminescent material and can also be used as a phosphorescent material for a light-emitting layer in an electroluminescent device made of multilayer 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] Materials are recognized as one of the three pillars of the development of modern society. As one of the important functional materials, luminescent materials are widely used in industry, agriculture, medicine, national defense and other fields. For example, they can be used as fluorescent whitening agents, fluorescent pigments, fluorescent dyes, fluorescent reagents, laser dyes, fluorescent powders for lamps, and the like. In particular, the demand for various information displays in today's society and the urgent need for energy-saving lighting under the background of the energy crisis have greatly promoted the rapid development of luminescent materials. [0003] Distinguished from the principle of lumines...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F19/00C09K11/06H01L51/54
Inventor 柴文祥田园宋莉陶晓栋黄佳焰章明陈海潮陈智
Owner CHINA JILIANG UNIV
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