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CuIN2P tetrahedral coordination cuprous complex luminous material

A technology of luminescent materials and complexes, applied in the field of luminescent materials and organic electroluminescent materials, can solve the problem that the luminous intensity cannot meet the application requirements, achieve good phosphorescence emission performance, inhibit non-radiative attenuation, and have good thermal stability. Effect

Inactive Publication Date: 2015-08-26
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • CuIN2P tetrahedral coordination cuprous complex luminous material
  • CuIN2P tetrahedral coordination cuprous complex luminous material
  • CuIN2P tetrahedral coordination cuprous complex luminous material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of a large number of microcrystalline samples: Weigh 0.5 mmol of CuI and dissolve it in 10 mL of acetonitrile, weigh 0.5 mmol of tris(2,4-xylyl)phosphine ligand and dissolve it in 8 mL of dichloromethane, and mix the two Mix the solutions, and stir to make the coordination reaction fully occur to obtain a colorless solution A; then weigh 0.5mmol of 2-PBO ligand and dissolve it in 8mL of acetonitrile, then add this solution to the above solution A, and stir to make it fully A coordination reaction occurs, and finally the obtained yellow reaction liquid is rotary evaporated to remove all solvents, and dried in vacuum to obtain a yellow crystal powder as the product with a yield of 96% (calculated as Cu).

Embodiment 2

[0035] Synthesis of single crystal of phosphorescent cuprous complex CuI(2-PBO)(TXP-2,4): Weigh 0.1 mmol of CuI and dissolve it in 3 mL of acetonitrile, weigh 0.1 of tris(2,4-xylyl)phosphine Dissolve the ligand in 3mL of dichloromethane, mix the two solutions, and stir to make it fully undergo a coordination reaction to obtain a colorless solution A; then weigh 0.1mmol of 2-PBO ligand and dissolve it in 2mL of acetonitrile, Then add this solution into the above-mentioned solution A, and stir to make the coordination reaction fully occur, and finally filter the obtained yellow solution, cover the filtrate with n-hexane to promote the crystallization of the product, and after standing for several days, a large number of yellow flaky crystals are precipitated. A yellow flaky transparent crystal with a size of 0.36mm×0.33mm×0.15mm 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 u...

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Abstract

The invention discloses an orange phosphorescent CuIN2P cuprous complex luminous material and a preparation method of the luminous material. The phosphorescent complex is obtained by coordination reaction of cuprous iodide and a ligand, and has a molecular structural formula of CuI(2-PBO)(TXP-2,4), wherein 2-PBO and TXP-2,4 are electrically neutral ligands 2-(2-benzoxazole) pyridine and tri-(2,4xylyl) phosphine. The complex has the advantages that the complex is micromolecular and easy in purification, has high luminous efficiency and can be dissolved by an organic solvent easily. The material is obtained by directly mixing cuprous iodide and a ligand solution for reaction, and has the advantages of simple technology, simple equipment, easy availability of raw materials, low cost and the like. The material can serve as a photoluminescent orange material and a phosphorescent material of a luminous layer in an electroluminescent device consisting of a plurality 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): C09K11/06C07F1/08C07F9/50
Inventor 柴文祥宋莉陶晓栋陈智梁佳萍秦来顺陈忠奉陈海潮
Owner CHINA JILIANG UNIV
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