CuBrN2P type cuprous complex orange luminescent material based on benzoxazolyl pyridine

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

Inactive Publication Date: 2016-08-10
CHINA JILIANG UNIV
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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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  • CuBrN2P type cuprous complex orange luminescent material based on benzoxazolyl pyridine
  • CuBrN2P type cuprous complex orange luminescent material based on benzoxazolyl pyridine
  • CuBrN2P type cuprous complex orange luminescent material based on benzoxazolyl pyridine

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Experimental program
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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 a CuBrN2P type cuprous complex orange luminescent material based on benzoxazolyl pyridine and a preparing method of the CuBrN2P type cuprous complex orange luminescent material. A phosphorescence complex is obtained through a complexing reaction of cuprous bromide and a ligand, and the molecular structural formula of the phosphorescence complex is CuBr(2-PBO)(PPh3), wherein 2-PBO and PPh3 in the formula are an electric neutral ligand 2-(2-benzoxazole)pyridine and triphenylphosphine respectively. The complex has the advantages of being easy to purify due to small molecules and high in luminescent efficiency, and has the advantage of being easy to dissolve with an organic solvent. The material is obtained through a reaction achieved by directly mixing cuprous bromide and a ligand solution, and has the advantages that the process is easy and convenient, equipment is simple, raw materials are easy to obtain, and cost is low. The material can serve as a photoluminescence orange light material and can also serve as a luminescent layer phosphorescent material in an electroluminescence device composed of multiple 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] 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): C09K11/06C07F1/08H01L51/50H01L51/54
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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