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A benzoxazolylpyridine-based cubrn2p-type cuprous complex orange luminescent material

A luminescent material, benzoxazole technology, applied in luminescent materials, copper organic compounds, electrical components, etc., can solve the problem that the luminous intensity cannot meet the application requirements, achieve good phosphorescent emission performance, simple and easy-to-obtain raw materials, and process easy effect

Inactive Publication Date: 2018-03-02
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It's just that the luminous intensity of Cu(I) complex phosphorescent materials in the OLED working temperature range is still not up to the application requirements.

Method used

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  • A benzoxazolylpyridine-based cubrn2p-type cuprous complex orange luminescent material
  • A benzoxazolylpyridine-based cubrn2p-type cuprous complex orange luminescent material
  • A benzoxazolylpyridine-based cubrn2p-type cuprous complex orange luminescent material

Examples

Experimental program
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Effect test

Embodiment 1

[0031]Preparation of a large number of microcrystalline samples: Weigh 0.5 mmol of CuBr and dissolve it in 10 mL of acetonitrile, weigh 0.5 mmol of triphenylphosphine ligand and dissolve it in 8 mL of dichloromethane, mix the two solutions, and stir to make Coordination reaction fully occurs to obtain colorless solution A; then weigh 0.5mmol of 2-PBO ligand and dissolve it in 8mL of acetonitrile, then add this solution into the above solution A, and stir to make the coordination reaction fully occur, and finally The resulting yellow reaction liquid was rotary evaporated to remove all solvents, and dried in vacuo to obtain an orange-yellow crystalline powder as the product with a yield of 96% (calculated as Cu).

Embodiment 2

[0033] Synthesis of phosphorescent cuprous complex CuBr(2-PBO)(PPh 3 ) single crystal: Weigh 0.1 mmol of CuBr and dissolve it in 5 mL of acetonitrile, weigh 0.1 mmol of triphenylphosphine ligand and dissolve it in 4 mL of dichloromethane, mix the two solutions, and stir to make it fully complexed Then, weighed 0.1mmol of 2-PBO ligand and dissolved it in 2mL of acetonitrile, then added this solution into the above-mentioned solution A, and stirred to make the coordination reaction fully occur, and finally the obtained yellow solution Filtrate, and cover the filtrate with n-hexane to promote crystallization of the product. After standing for several days, a large number of yellow blocky crystals are precipitated. A yellow bulk transparent crystal with a size of 0.32mm×0.29mm×0.23mm 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 atta...

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Abstract

The invention discloses an orange phosphorescent CuBrN2P type cuprous complex luminescent material based on benzoxazolylpyridine and a preparation method thereof. The phosphorescent complex of the present invention is obtained by a coordination reaction between cuprous bromide and a ligand, and its molecular structural formula is CuBr(2-PBO)(PPh3), where 2-PBO and PPh3 are respectively electrically neutral ligands 2 ‑(2‑benzoxazole)pyridine and triphenylphosphine. The complex not only has the advantages of easy purification of small molecules and high luminous efficiency, but also has the advantage of being easily dissolved in an organic solvent. The material is obtained by directly mixing and reacting cuprous bromide and a ligand solution, and has the advantages of simple process, simple equipment, easily available raw materials and low cost. The material can be used as a photoluminescence orange light material, and can also be used as a light-emitting layer phosphorescent material in an electroluminescence device composed of multi-layer 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 Patents(China)
IPC IPC(8): C09K11/06C07F1/08H01L51/50H01L51/54
CPCC09K11/06C07F1/08C09K2211/188H10K85/371H10K50/11
Inventor 柴文祥寿容儿陈岗宋莉朱秋梦郭冰陈智秦来顺唐高舒康颖
Owner CHINA JILIANG UNIV
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