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Binuclear cuprous complex luminescent material and preparation method thereof

A technology of luminescent materials and complexes, applied in luminescent materials, copper organic compounds, chemical instruments and methods, etc., can solve the problems of insufficient luminous efficiency and thermal stability of luminescent materials, scarcity of RGB three-color materials, etc., and achieve energy transfer Efficiency improvement, low production cost, and the effect of suppressing non-radiative attenuation

Inactive Publication Date: 2014-03-12
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the luminous efficiency and thermal stability of Cu(I) complex luminescent materials are not high enough, and RGB three-color materials with superior performance are scarce, which is still a key problem restricting their application in important fields such as organic electroluminescence.

Method used

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  • Binuclear cuprous complex luminescent material and preparation method thereof
  • Binuclear cuprous complex luminescent material and preparation method thereof
  • Binuclear cuprous complex luminescent material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Binuclear Cu(I) Complex [Cu(POP)Br] 2 Preparation of:

[0028] 1) Weigh 0.3mmol of POP each, pour it into a Shenlek bottle, add 30ml of dichloromethane, fill with nitrogen, and stir thoroughly to obtain a clear solution A;

[0029] 2) Weigh 0.3 mmol of CuBr with a stoichiometric ratio of 1:1, pour it into solution 1, continue to react under nitrogen atmosphere, and stir for 6 hours in the dark to obtain a colorless slightly turbid solution B;

[0030] 3) Filter solution B, take its filtrate, and remove the solvent by rotary evaporation of the filtrate under reduced pressure to obtain a white microcrystalline powder product, which is dried to obtain Cu(I) complex luminescent material [Cu(POP)Br] 2 .

Embodiment 2

[0032] Binuclear Cu(I) Complex [Cu(POP)Br] 2 Single crystal acquisition and characterization:

[0033] The single crystal was obtained by solvent diffusion method, and 0.1 mmol of [Cu(POP)Br] was weighed2 Powder, dissolved in 1ml of dichloromethane, placed in a small test tube, slowly added isopropanol (the volume ratio of isopropanol to dichloromethane solution is 1.5:1), and stood for several days to obtain a colorless transparent block shape crystal, select a single crystal with a size of 0.38×0.32×0.26mm for X-ray single crystal diffraction, and analyze [Cu(POP)Br] 2 molecular structure. The molecular structure of the compound is shown in the attached figure 1 , the unit cell packing structure diagram is shown in the appendix figure 2 .

[0034] For dinuclear complexes [Cu(POP)Br] 2 A series of performance tests were carried out on pure phase crystal samples. TG test shows that the material has good thermal stability, and its initial decomposition temperature reache...

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Abstract

The invention discloses a binuclear Cu(I) complex luminescent material capable of emitting green light and a preparation method of the binuclear Cu(I) complex luminescent material. The green luminescent complex is obtained by complexing cuprous bromide and a ligand, and the molecular structure is [Cu(POP)Br]2, wherein the POP in the formula is an electric neutrality ligand bis(2-diphenyl phosphorus phenyl)ether, and the binuclear structure molecule is formed by coupling a bridging ligand bromide ion with two metal ions. The complex has the advantages that the micromolecule is easy to purify and the luminous efficiency is high, and the heat stability is high. The material is obtained by directly mixing and reacting the cuprous bromide with a dichloromethane solution of the ligand, the process is simple and convenient, the equipment is simple, the raw material is easy to obtain and the cost is low. The material can be used as a photoluminescence green material, and can be further used as a luminescent layer green material in an electroluminescent device composed 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] With the development of technology, more and more functional materials with special photophysical and photochemical properties have been studied. Among them, Ir, Pt, Ru, Re, Os and other noble metal complexes and organic compounds are used as a new type of luminescent material. been widely concerned. However, these transition metals are expensive, low in content, and difficult to mine, which limits their large-scale application in real life and production. Therefore, it is particularly important to develop relatively cheap photoelectric functional materials of metal complexes. Compared with precious metals, copper has the advantages of cheapness, environmental protection, and non-toxicity, and my country's r...

Claims

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Application Information

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IPC IPC(8): C07F1/08C07F9/50C09K11/06H01L51/54
Inventor 柴文祥洪明卫徐凯杰孙佳峰夹国华秦来顺史宏声范美强陈达舒康颖
Owner CHINA JILIANG UNIV
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