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Cu4I4 cubane-like cluster core complex luminous material based on phosphine ligand

A luminescent material and cubane technology, applied in the field of luminescent materials and organic electroluminescent materials, can solve the problems of high cost, the luminous intensity cannot meet the application requirements, affecting the popularization and application of OLED and the market performance, etc., and achieves low production cost and energy. The effect of improving transfer efficiency and suppressing non-radiative attenuation

Inactive Publication Date: 2015-08-26
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To analyze more specifically, the green phosphorescent materials currently on sale for OLED are complexes of noble metals such as iridium and platinum. Although they have performed well in terms of performance, their expensive prices also affect the quality of OLED final products. Promote application and market performance
The use of Cu(I) complexes as green phosphorescent materials has a long history (N.Armaroli, G.Accorsi, F.Cardinali, A.Listorti, Top.Curr.Chem.2007, 280, 69-115.), this A 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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  • Cu4I4 cubane-like cluster core complex luminous material based on phosphine ligand
  • Cu4I4 cubane-like cluster core complex luminous material based on phosphine ligand
  • Cu4I4 cubane-like cluster core complex luminous material based on phosphine ligand

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Effect test

Embodiment 1

[0030] Preparation of a large number of microcrystalline samples: weigh 0.3 mmol of cuprous iodide and dissolve it in 10 mL of acetonitrile to obtain solution A, weigh 0.3 mmol of p-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 97% (calculated as Cu).

Embodiment 2

[0032] Synthesis of Cu(I) Complex Cu 4 I 4 (p-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 p-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 0.32mm×0.26mm×0.23mm 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 (p-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 Cu4I4 cubane-like cluster core complex luminous material based on a phosphine ligand and a preparation method of the Cu4I4 cubane-like cluster core complex luminous material. A phosphorescent complex of the luminous material is obtained by cuprous iodide and a P-containing ligand through complexing, and has a molecular structural formula of Cu4I4(p-anisyl3P)4, in which p-anisyl3P is electrically neutral P-containing ligand tri(p-methoxyphenyl)phosphine. The complex has the advantages that micromolecules are easy to extract, the luminous efficiency is high and the complex is easily dissolved by using an organic solvent. The material is obtained by directly mixing and reacting the cuprous iodide and a solution of the P-containing ligand, and has the advantages of being simple and convenient in technology, simple in related equipment, high in raw material availability, low in cost and the like. The material can serve as a photoluminescence material, and can also serve as a luminous layer phosphor material in an electroluminescent device formed by multiple layers of an organic material.

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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IPC IPC(8): C09K11/06C07F1/08C07F9/50
Inventor 柴文祥田园宋莉陶晓栋黄佳焰章明陈海潮郭冰
Owner CHINA JILIANG UNIV
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