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Di-nuclear cuprous complex green luminescent material and preparation method thereof

A technology of luminescent materials and dual-core cuprous, which is applied in the direction of luminescent materials, copper organic compounds, chemical instruments and methods, etc., can solve the problems of scarcity of materials with superior performance, insufficient luminous efficiency and thermal stability of luminescent materials, and achieve energy transfer efficiency Improvement, low production cost, and the effect of suppressing non-radiative attenuation

Inactive Publication Date: 2014-06-25
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, compared with the current EL market applications, the luminous efficiency and thermal stability of Cu(I) complex luminescent materials are not high enough, and materials with superior performance are scarce, which still restricts its application in important fields such as organic electroluminescence. Application Key Questions

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  • Di-nuclear cuprous complex green luminescent material and preparation method thereof
  • Di-nuclear cuprous complex green luminescent material and preparation method thereof
  • Di-nuclear cuprous complex green luminescent material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] Dinuclear cuprous complex green luminescent material [CuI(DPPB)] 2 Preparation of:

[0027] 1) Each weighed 0.3mmol of DPPB, poured it into a Shenlek bottle, added 30ml of dichloromethane, filled with nitrogen, and stirred thoroughly to obtain a clear solution A;

[0028] 2) Weigh 0.3 mmol of CuI with a stoichiometric ratio of 1:1, pour it into solution A, continue to react under a nitrogen atmosphere, and stir in the dark for 6 hours to obtain a colorless slightly turbid solution B;

[0029] 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 a Cu(I) complex luminescent material [CuI(DPPB)] 2 .

Embodiment 2

[0031] Dinuclear cuprous complex green luminescent material [CuI(DPPB)] 2 Single crystal acquisition and characterization:

[0032]The single crystal was obtained by solvent diffusion method, and 0.1 mmol of [CuI(DPPB)] was weighed 2 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 0.20×0.13×0.11mm for X-ray single crystal diffraction, and analyze [CuI(DPPB)] 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 .

[0033] Green luminescent material for dinuclear cuprous complexes [CuI(DPPB)] 2 A series of performance tests were carried out on pure phase crystal samples. The TG test shows that the material has goo...

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Abstract

The invention discloses a di-nuclear cuprous complex green luminescent material and a preparation method thereof. The green luminescent complex provided by the invention is prepared by complexing cuprous iodide and a ligand, and the molecular structure of the complex is [CuI(DPPB)]2, wherein the DPPB in the formula is an electro-neutral 1,4-di(diphenylphosphine) butane containing a ligand P, and iodide ions of a bridging ligand are connected with the centers of two metal ions to form a di-nuclear structural molecule. The complex not only has the advantages that small molecules are easy to purify and the luminous efficiency is high but also has high thermal stability. The material is prepared through a direct mixing reaction between the cuprous iodide and a dichloromethane solution of the ligand, and has the advantages of simple and convenient process, simple equipment, easily-obtainable raw materials, low cost and the like. The material can be used as a green photo-luminescent material or used as a green luminescent layer material in an electroluminescent device consisting of a plurality of 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] Distinguished from the principle of luminescence, luminescent materials include two types of application fields: photoluminescence and electroluminescence. Photoluminescence refers to the phenomenon in which an object is irradiated by an external light source, thereby obtaining energy to generate excitation and finally lead to luminescence. Photoluminescent materials can be used in fluorescence analysis, traffic signs, tracking monitoring, fluorescent collectors in solar energy conversion technology, etc. Electroluminescence (EL for short) refers to a phenomenon in which a luminescent material emits light when it is excited by a current and an electric field under the action of an electric field. Materials w...

Claims

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Application Information

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IPC IPC(8): C07F1/08C09K11/06H01L51/54
Inventor 柴文祥洪明卫王建腾夹国华史宏声徐凯杰黄绵吉秦来顺范美强陶晓栋郭驾宇舒康颖
Owner CHINA JILIANG UNIV
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