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A functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group and its preparation method and application

A dibenzothiophene and functional technology, applied in the field of dibenzothiophene group-based functional bisphosphine copper cluster electroluminescence materials and its preparation and application, can solve the problem of weak carrier transport ability and luminescence Poor stability, molecular luminescence quenching and other problems, to achieve the effect of adjustable fluorescence emission, good luminescence stability, and strong carrier transport

Active Publication Date: 2019-01-08
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of existing cluster electroluminescent materials, such as strong photobleaching, weak carrier transport ability, poor luminescence stability, strong self-absorption and molecular luminescence quenching, and provide a diphenyl-based Functional bisphosphine copper cluster electroluminescent material with thiophene group, preparation method and application

Method used

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  • A functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group and its preparation method and application
  • A functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group and its preparation method and application
  • A functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group and its preparation method and application

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specific Embodiment approach 1

[0095] Embodiment 1: This embodiment is a method for preparing a functional bisphosphine copper cluster electroluminescent material based on a dibenzothiophene group, which is specifically completed according to the following steps:

[0096] Mix the functional bisphosphine ligand, cuprous halide and dichloromethane, then react at a temperature of 40°C to 45°C for 10h to 15h, and then use a rotary evaporator to spin dry to obtain a solid substance; use dichloromethane and petroleum The ether mixture is used as eluent for column chromatography purification to obtain a functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene groups;

[0097] The substance ratio of the functional bisphosphine ligand to cuprous halide is (0.5~3): 1; the volume ratio of the substance quantity of the functional bisphosphine ligand to methylene chloride is 1 mmol: (3mL~10mL); the functional bisphosphine ligand is Wherein, said Z is H, The PPh 2 The structure ...

specific Embodiment approach 2

[0098] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the volume ratio of methylene chloride and petroleum ether in the mixture of dichloromethane and petroleum ether is 1:20. Others are the same as the first embodiment.

specific Embodiment approach 3

[0099] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the molar ratio of the functional bisphosphine ligand to cuprous halide is (1-3):1. Others are the same as those in the first or second embodiment.

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Abstract

A functional bisphosphine copper cluster electroluminescent material based on a dibenzothiophene group, a preparation method and an application thereof relate to an electroluminescence material, a preparation method and an application. The purpose of the invention is to solve the shortcomings of the existing cluster electroluminescent materials, such as strong photobleaching, weak carrier transport ability, poor luminescence stability, strong self-absorption and molecular luminescence quenching. The structural formula of a functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group is: method: mix functional bisphosphine ligand, cuprous halide and methylene chloride, react, then spin dry , to obtain a solid substance; using a mixture of dichloromethane and petroleum ether as an eluent to carry out column chromatography for purification, which is completed. A functional bisphosphine copper cluster electroluminescent material based on dibenzothiophene group is used as a light-emitting layer material in electroluminescent devices. The invention can obtain a functional diphosphine copper cluster electroluminescent material based on dibenzothiophene groups.

Description

technical field [0001] The invention relates to an electroluminescent material, a preparation method and an application. Background technique [0002] Organic light-emitting diodes are called the third-generation flat-panel display and lighting technology, and have outstanding advantages in energy saving and environmental protection. The complexes formed by metals and organic molecules have the characteristics of phosphorescence or fluorescence due to their unique orbital coupling methods. However, since most of the traditional complex materials use heavy metals such as gold and platinum, the reserves of these metals are scarce and mining is difficult. , the cost is expensive, so people hope to replace precious metals with cheaper, more easily available, non-toxic and harmless metals, and copper complexes, due to their low cost, environmental friendliness, luminescence and thermally activated delayed fluorescence, have gradually become precious metals. Good substitute for c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/6553C07F9/6558C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F9/655354C07F9/65586C09K2211/188C09K2211/1007C09K2211/1011C09K2211/1022C09K2211/1014C09K2211/1029C09K2211/1092H10K85/636H10K85/6576H10K85/6572H10K85/371H10K50/00
Inventor 许辉谢明辰韩春苗
Owner HEILONGJIANG UNIV
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