Coordination compound and preparation method thereof, phosphorescent material, organic electroluminescent device, display screen and solar cell

A technology of complexes and compounds, applied in the field of complexes and their preparation, can solve the problems of insufficient luminous efficiency of phosphorescent materials and the like

Active Publication Date: 2020-01-14
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a complex and its preparation method, a phosphorescent material, an organic electroluminescent device, a display screen, and a solar cell, so as to solve the problem of insufficient luminous efficiency of the existing phosphorescent material proposed in the background art above. question

Method used

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  • Coordination compound and preparation method thereof, phosphorescent material, organic electroluminescent device, display screen and solar cell
  • Coordination compound and preparation method thereof, phosphorescent material, organic electroluminescent device, display screen and solar cell
  • Coordination compound and preparation method thereof, phosphorescent material, organic electroluminescent device, display screen and solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] A kind of complex I-1, namely the complex compound numbered I-1, the reaction formula of its synthetic steps is as follows:

[0078]

[0079] In this example, the specific synthesis steps of the complex I-1 are as follows:

[0080] 1) Under nitrogen atmosphere, add the compound shown in formula A-1 (18.01g, 60mmol) and IrCl to the reactor 3 ·3H 2 O (7.05g, 20mmol), then add a mixed solution composed of 240mL ethylene glycol ether and 80mL pure water, reflux for 24 hours under the protection of a nitrogen atmosphere, then cool to room temperature, a precipitate is precipitated, and the precipitate is suction filtered Obtain solid, then described solid is rinsed with water, dehydrated alcohol, sherwood oil successively, oven dry, obtains the intermediate B-1 shown in the formula B-1 of yellow powder (mass is 8.76g, productive rate is 53% );

[0081] 2) Under a nitrogen atmosphere, weigh the intermediate B-1 (8.26g, 5mmol) shown in the formula B-1 obtained in step 1)...

Embodiment 2

[0090] A kind of complex I-7, the complex that is numbered I-7, the reaction formula of its synthetic steps is as follows:

[0091]

[0092] In this example, the specific synthesis steps of the complex I-7 are as follows:

[0093] 1) Under nitrogen atmosphere, add the compound shown in formula A-7 (15g, 50mmol) and IrCl to the reactor 3 ·3H 2 O (7.05g, 20mmol), then add a mixed solution composed of 300mL ethylene glycol ether and 100mL pure water, reflux for 24 hours under the protection of a nitrogen atmosphere, then cool to room temperature, a precipitate is precipitated, and the precipitate is suction filtered Obtain solid, then described solid is rinsed with water, dehydrated alcohol, sherwood oil successively, oven dry, obtains the intermediate B-7 shown in the formula B-7 of yellow powder (mass is 6.94g, productive rate is 42%) );

[0094] 2) Under a nitrogen atmosphere, weigh the intermediate B-7 (6.61 g, 4 mmol) shown in the formula B-7 obtained in step 1) and ad...

Embodiment 3

[0103] A complex I-41, i.e. the complex compound numbered I-41, the reaction formula of its synthesis steps is as follows:

[0104]

[0105] In this example, the specific synthesis steps of the complex I-41 are as follows:

[0106] 1) Under nitrogen atmosphere, add compound (7.44g, 44mmol) shown in formula D-41 and IrCl to the reactor 3 ·3H 2 O (7.05g, 20mmol), then add a mixed solution composed of 210mL ethylene glycol ether and 70mL pure water, reflux for 24 hours under the protection of nitrogen atmosphere, then cool to room temperature, there is a precipitate, and the precipitate is suction filtered Obtain solid, then described solid is rinsed with water, dehydrated alcohol, sherwood oil successively, oven dry, obtains the intermediate B-41 shown in the formula B-41 of yellow powder (mass is 6.54g, productive rate is 58% );

[0107] 2) Under a nitrogen atmosphere, weigh the intermediate B-41 (5.64g, 5mmol) shown in the formula B-41 obtained in step 1) and add it to the...

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Abstract

The invention relates to the field of organic photoelectric materials, and specifically discloses a coordination compound and a preparation method thereof, a phosphorescent material, an organic electroluminescent device, a display screen and a solar cell, wherein the coordination compound has the following structure defined in the specification. According to the invention, the coordination compound of the embodiments has good luminous efficiency; by selecting the ligand of the specific heterocyclic ring to combine, the wavelength of the coordination compound is adjusted, so that the organic electroluminescent device prepared from the obtained coordination compound has increased luminous efficiency and long service life; and the preparation method of the embodiments has advantages of low synthesis price and low synthesis process requirements, is suitable for industrial production, and solves the problem of insufficient luminous efficiency of the existing phosphorescent material.

Description

technical field [0001] The invention relates to the field of organic photoelectric materials, in particular to a complex and a preparation method thereof, a phosphorescent material, an organic electroluminescent device, a display screen and a solar battery. Background technique [0002] Electroluminescent devices, as a display device that uses electroluminescent materials to be excited to emit light, are widely used in the field of electronic product manufacturing. Electroluminescent devices can be divided into AC and DC types according to the excitation voltage, both of which can be made of powder or thin film electroluminescent materials. The technical focus of improving the performance of electroluminescent devices is to improve the light color purity and efficiency of electroluminescent materials. [0003] Generally, phosphorescent materials have greater luminous efficiency than fluorescent materials, so phosphorescent materials are mostly used in the manufacture of org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50H01L51/54H01L51/42H01L51/46
CPCC07F15/0033C09K11/06C09K2211/185H10K85/342H10K30/00H10K50/11Y02E10/549Y02P70/50
Inventor 王辉李小龙李明李建行刘志远段伟伟马晓宇
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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