Preparation method of metal complex OLED (organic light emitting diode) main material

A technology of metal complexes and host materials, applied in luminescent materials, indium organic compounds, platinum group organic compounds, etc., can solve problems such as insufficient quantum efficiency, poor material shape stability, and inability to meet the requirements of blue or white light devices. The effect of improving electron transport performance, reducing efficiency roll-off, and excellent charge transport balance

Inactive Publication Date: 2018-11-23
宁波高新区诠宝绶新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Double dipole host materials have become the most outstanding type of host materials due to their good hole and electron transport capabilities at the same time, but such materials have the disadvantages of insufficient quantum efficiency and poor morphological stability Adapt to blue light or white light device requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing a metal complex OLED host material, the preparation technical scheme is as follows:

[0020] According to the mass parts, 14.7 parts of metal salts, 50.4 parts of organic ligand molecules, 130 parts of solvents and 50 parts of purified water were added to the reaction kettle, vacuumed, and the air was replaced with high-purity nitrogen, and repeated three times; Under the protection of high-purity nitrogen, the temperature is controlled at 138°C, and the reaction is refluxed for 28 hours; after the reaction is completed, cool to room temperature, add 200 parts of purified water to the system, then filter, wash with purified water and ethanol three times, and then dry to obtain a dimer ; The obtained dimer is added to the reactor, and then 35.8 parts of potassium carbonate, 18.6 parts of 3-fluoro-2-pyridinecarboxylic acid, 0.05 part of 3,7-diketone-5B-cholestane-24 are added -acid, 0.05 parts of cesium tetraphenylborate, 0.02 parts of 1-(dimethylis...

Embodiment 2

[0028] A method for preparing a metal complex OLED host material, the preparation technical scheme is as follows:

[0029] According to the number of parts by mass, 12.6 parts of metal salts, 45.6 parts of organic ligand molecules, 100 parts of solvents and 40 parts of purified water were added to the reaction kettle, vacuumed, and the air was replaced with high-purity nitrogen, and repeated three times; Under the protection of high-purity nitrogen, the temperature is controlled at 135°C, and the reaction is refluxed for 24 hours; after the reaction is completed, cool to room temperature, add 180 parts of purified water to the system, then filter, wash with purified water and ethanol three times, and then dry to obtain a dimer ; The obtained dimer is added to the reactor, and then 32.6 parts of potassium carbonate, 15.2 parts of 3-fluoro-2-pyridinecarboxylic acid, 0.01 part of 3,7-diketone-5B-cholestane-24 are added -acid, 0.01 part of cesium tetraphenylborate, 0.01 part of 1-...

Embodiment 3

[0037] A method for preparing a metal complex OLED host material, the preparation technical scheme is as follows:

[0038] According to the mass parts, 16.7 parts of metal salts, 55.4 parts of organic ligand molecules, 150 parts of solvents and 60 parts of purified water were added to the reaction kettle, vacuumed, and the air was replaced with high-purity nitrogen, and repeated three times; Under the protection of high-purity nitrogen, the temperature is controlled at 140°C, and the reaction is refluxed for 30 hours; after the reaction is completed, cool to room temperature, add 220 parts of purified water to the system, then filter, wash with purified water and ethanol three times, and then dry to obtain a dimer ; The obtained dimer is added to the reactor, and then 36.8 parts of potassium carbonate, 20.6 parts of 3-fluoro-2-pyridinecarboxylic acid, 0.06 parts of 3,7-diketone-5B-cholestane-24 are added -acid, 0.08 parts of cesium tetraphenylborate, 0.06 parts of 1-(dimethyli...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of preparation of novel materials, and particularly discloses a preparation method of a metal complex OLED (organic light emitting diode) main material. The metal complex OLED main material prepared by the preparation method of the metal complex OLED main material has the advantages that the service life of phosphor light is short, and the yield of quantum is high; by introducing fluorine atoms, the service life of phosphor light is further prolonged; by adopting molecules with stronger rigid structure, the electron transmission property is obviously improved, the excellent charge transmission balance property is realized, and the efficiency roll-off of the device at high brightness is favorably reduced.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a method for preparing a metal complex OLED host material. Background technique [0002] Host material is a concept relative to light-emitting materials (guest materials), and it is also a research hotspot in the field of organic electroluminescent materials in recent years, and its types of materials are also the largest. The host material not only plays the role of dispersing the luminescent material and reducing the concentration of triplet excitons, but usually the host material itself has certain or even good charge transport properties and can transfer energy to the luminescent material, which can greatly improve the performance of the luminescent material, especially the Luminous Efficiency of Phosphorescent Materials [0003] CN106866672A discloses a preparation method and application of a novel OLED material. The novel OLED material includes a molecular structure con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07F7/10C07F15/00C09K11/06H01L51/54
CPCC09K11/06C07F7/10C07F15/0033C09K2211/182C09K2211/185H10K85/40
Inventor王琪宇张媛媛
Owner宁波高新区诠宝绶新材料科技有限公司