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Benzoxazole pyridine-based copper iodide complex orange luminous material

A luminescent material, benzoxazole technology, 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 phosphorescent emission performance, suppress non-radiative attenuation, and thermal stability Good results

Inactive Publication Date: 2016-08-17
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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  • Benzoxazole pyridine-based copper iodide complex orange luminous material
  • Benzoxazole pyridine-based copper iodide complex orange luminous material
  • Benzoxazole pyridine-based copper iodide complex orange luminous material

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A large number of phosphorescent cuprous complexes CuI(2-PBO)(o-Tol 3 P) Preparation of crystal sample: Weigh 0.5 mmol of CuI and dissolve it in 15 mL of acetonitrile, weigh 0.5 mmol of tris(o-methylphenyl)phosphine ligand and dissolve it in 10 mL of dichloromethane, and mix the two solutions , and stirred to make it fully coordinated to obtain a colorless solution A; then weighed 0.5mmol of 2-PBO ligand and dissolved it in 10mL of acetonitrile, then added this solution to the above solution A, and stirred to make it fully coordinated Finally, the obtained orange-yellow reaction liquid was rotary evaporated to remove all solvents, and vacuum-dried to obtain a yellow crystal powder as the product with a yield of 95% (calculated as Cu).

Embodiment 2

[0033] Synthesis of phosphorescent cuprous complex CuI(2-PBO)(o-Tol 3 P) Single crystal: Weigh 0.1 mmol of CuI and dissolve it in 4 mL of acetonitrile, weigh 0.1 mmol of tris (o-methylphenyl) phosphine ligand and dissolve it in 3 mL of dichloromethane, mix the two solutions, And stir to make it fully coordinated to obtain a colorless solution A; then weigh 0.1mmol of 2-PBO ligand and dissolve it in 3mL of acetonitrile, then add this solution to the above solution A, and stir to make it fully coordinated After the reaction, the resulting orange-yellow solution was filtered, and the filtrate was covered with n-hexane to promote the crystallization of the product. After standing for several days, a large number of yellow blocky crystals were precipitated. A yellow bulk transparent crystal with a size of 0.18mm×0.13mm×0.10mm 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 c...

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Abstract

The invention discloses benzoxazole pyridine-based orange phosphorescent CuIN2P-type copper complex luminous material and a preparation method thereof. The phosphorescent complex of the invention is obtained by coordination reaction of copper iodide and a ligand and has a molecular structural formula: CuI(2-PBO)(o-Tol3P), wherein 2-PBO and o-Tol3P are respectively electrically-neutral ligands 2-(2-benzoxazole)pyridine and tris(o-methylphenyl)phosphine. The complex has small-molecular purification easiness and high luminous efficiency and is also easy to dissolve with an organic solvent. This material is obtained by directly mixing and reacting copper iodide and a ligand solution and has the advantages such as process simplicity, equipment simplicity, easy access of materials and low cost. This material may be used as a photoluminescent orange luminous material and may also be used a luminous layer phosphorescent material in an electroluminescent device composed of multilayer organic material.

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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IPC IPC(8): C07F1/08C09K11/06
CPCC07F1/005C09K11/06C09K2211/188
Inventor 柴文祥陈岗宋莉朱秋梦华有杰李银群陈智唐高
Owner CHINA JILIANG UNIV
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