Three-coordination dual-core copper iodide complex light-emitting material

A technology of light-emitting material and cuprous iodide, applied in the direction of light-emitting materials, copper organic compounds, compounds of elements of Group 5/15 of the periodic table, etc. and other problems, to achieve the effect of low production cost, good phosphorescence emission performance, and cheap purification

Inactive Publication Date: 2015-08-12
CHINA JILIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] More specifically, the 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 promotion of OLED final products. Applications and Market Performance
The use of Cu(I) complexes as phosphorescent materials has a long history (N.Armaroli, G.Accorsi, F.Cardinali, A.Listorti, Top.Curr.Chem.2007, 280, 69-115.), this Inexpensive Cu(I) complex luminescent materials can be easily prepared from Cu(I) ions and suitable organic ligands, but their luminous intensity cannot meet the application requirements in the OLED operating temperature range.

Method used

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  • Three-coordination dual-core copper iodide complex light-emitting material
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  • Three-coordination dual-core copper iodide complex light-emitting material

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Experimental program
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Effect test

Embodiment 1

[0028]Preparation of a large number of microcrystalline samples: weigh 60mg of CuI and dissolve it in 20mL of acetonitrile, weigh 110mg of o-anisyl 3 The P ligand was dissolved in 20 mL of acetonitrile (the molar ratio of the three reactants was 1:1), the two solutions were mixed and stirred to make the coordination reaction fully occur, and finally the obtained yellow reaction liquid was removed by rotary evaporation. All the solvents were vacuum-dried to obtain a yellow crystal powder as the product with a yield of 99% (calculated as Cu).

Embodiment 2

[0030] Synthesis of Dinuclear Cuprous Iodide Cluster Complex [CuI(o-anisyl 3 P)] 2 ·(CH 3 CN) single crystal: after weighing 19mg CuI and dissolving it in 50mL acetonitrile, then 36mg of o-anisyl 3 P ligand was added to the above solution at one time, stirred to dissolve it completely, and then filtered, and the filtrate was covered with isopropanol to promote the crystallization of the product, and a large number of yellow blocky crystals were precipitated after standing for several days. A yellow bulk transparent crystal with a size of 0.26mm×0.23mm×0.18mm was selected for X-ray single crystal diffraction 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 .

[0031] The dinuclear cuprous iodide cluster complex [CuI(o-anisyl 3 P)] 2 ·(CH 3 CN) a series of performance tests were carried out on pure phase crystal samples. The steady-state fluorescence test wa...

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Abstract

The invention discloses a white-red phosphorescence three-coordination dual-core copper iodide cluster base complex light-emitting material and a preparation method thereof. A phosphorescence complex is obtained copper iodide and ligand through coordination reaction, and molecular structure of the phosphorescence complex is [CuI(o-anisyl3P)]2.(CH3CN)], wherein o-anisyl3P refers to electrically neutral ligand 3(o methoxy phenyl) phosphine. The complex has the advantages of easiness in extraction and high light-emitting efficiency that small molecules have and has the advantage of easiness in dissolving by using organic solvent. The material is obtained directly through mixing reaction of copper iodide and a solution of 3(o methoxy phenyl) phosphine, thereby having the advantages of being simple and convenient in process, simple in equipment, easy-to-get in raw material and low in cost. The material can serve as a photoluminescence white light material and can be used as a light emitting layer phosphorescence material in an electroluminescence device composed of multiple layer 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] Luminescent materials include photoluminescence and electroluminescence in two categories of applications. 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. Photoluminescence can be caused by ultraviolet radiation, visible light and infrared radiation. Photoluminescent materials can be used in fluorescence analysis, traffic signs, tracking monitoring, agricultural light conversion film, scintillator in nuclear detection technology, fluorescent light collector in solar energy conversion technology, etc. Electroluminescence (EL for short) refers to the phenomenon that lumines...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F1/08C07F9/50H01L51/54
CPCY02B20/00
Inventor 柴文祥梁佳萍夹国华洪明卫陶晓栋赵毅郭冰舒康颖
Owner CHINA JILIANG UNIV
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