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Organic light-emitting material and organic light-emitting device thereof

A light-emitting material, organic technology, applied in the direction of light-emitting materials, organic chemistry, electric solid devices, etc., can solve the problems of unbalanced carrier recombination, low driving voltage, low device efficiency, etc., and achieve low driving voltage and high luminous efficiency. , the effect of uniform light color

Inactive Publication Date: 2017-09-29
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic luminescent material of the present invention has both electron and hole bipolar transport capabilities, and the organic light-emitting device prepared by using the organic luminescent material of the present invention has higher luminous efficiency, lower driving voltage, better film stability and thermal stability. Stability and uniform light color can effectively solve the problems of low device efficiency and unbalanced carrier recombination

Method used

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  • Organic light-emitting material and organic light-emitting device thereof
  • Organic light-emitting material and organic light-emitting device thereof
  • Organic light-emitting material and organic light-emitting device thereof

Examples

Experimental program
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preparation example Construction

[0032] The preparation method of the organic luminescent material shown in the present invention can obtain compound A through reduction reaction, compound B and C can be obtained respectively through coupling reaction, compound A can undergo a bromination reaction, and compound D can be obtained through coupling reaction with B and C, Compound D prepares the chemical formula structure compound of the present invention through oxidation reaction.

[0033]

[0034] The present invention does not have special requirement to the condition of above-mentioned various kinds of reaction, is the conventional condition of this type of reaction well known to those skilled in the art, and wherein R 1 , R 2 、Ar 1 、Ar 2 、Ar 3 、Ar 4 The selection is the same as mentioned above, and will not be repeated here.

[0035] The present invention also provides an organic light emitting device, comprising a first electrode, a second electrode and an organic compound layer placed between the ...

Embodiment 1

[0040] [Example 1] Synthesis of Compound 1

[0041]

[0042] *Synthesis of Intermediate 1-1

[0043] Add 4-H-cyclopentadienedithiophene (1.92g, 10.8mmol), 50mL of DMSO, bromoethane (2.44g, 22.4mmol), KI (0.05g, 0.30mmol) into the reactor. Under the conditions of nitrogen purging and ice bath, 2 g of finely ground KOH powder was added, and then the mixture was stirred and reacted at room temperature for 24 h, and then 50 mL of water was added to the reactor in an ice bath, and the organic phase was extracted twice with diethyl ether, After washing with water, brine and ammonium chloride, MgSO 4 After drying, the solvent was distilled off, and the crude product was purified by silica gel column chromatography to obtain compound 1-1 (1.87 g, 84%).

[0044] *Synthesis of Intermediate 1-2

[0045] In the absence of nitrogen, 1-1 (2.34g, 10.0mmol), 60mL of DMF solution, 60mL of glacial acetic acid, 50mL of chloroform were added to the reactor, NBS (4.44g, 25.0mmol) was added, ...

Embodiment 2

[0052] [Example 2] Synthesis of compound 26

[0053] According to the synthetic method of compound 1, compound 26 (2.66 g, 52%) was obtained.

[0054]

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PUM

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Abstract

The invention discloses an organic light-emitting material and an organic light-emitting device thereof and belongs to the technical field of organic photoelectric materials. The organic light-emitting material takes 2,6-diamino-4H-cyclopentabithiophene-1,1,7,7-tetroxide as a main body structure; the main body structure is connected with different ligand radicals to obtain the organic light-emitting material; meanwhile, the organic light-emitting material has an electron and hole double-polar transmission capability. The organic light-emitting device prepared from the organic light-emitting material has higher light-emitting efficiency, lower driving voltage, better membrane stability and thermal stability and uniform light color.

Description

technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to an organic light emitting material and an organic light emitting device thereof. Background technique [0002] With the development of material science, ever-changing display technologies are continuously applied in various fields, from the LCD technology used in LCD TVs to the rapidly developing LED technology, and then to the OLED technology that is currently being actively developed and used. The difference is that both LCD and LED use backlight. LCD display technology has disadvantages in color reproduction. LED backlight technology has high brightness, long life, wider color gamut, bright colors, and can accurately control color rendering characteristics, but It uses a backlight source, and the LED fluorescent material is an inorganic material prepared from a non-renewable rare earth material, which can only be applied to a solid-state light-emitting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D495/04C07D519/00C09K11/06H01L51/54
CPCC09K11/06C07D495/04C07D519/00C09K2211/1088C09K2211/1092C09K2211/1029C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1033C09K2211/1037C09K2211/1044C09K2211/1059H10K85/636H10K85/626H10K85/633H10K85/656H10K85/654H10K85/6576H10K85/6574H10K85/6572
Inventor 蔡辉董秀芹
Owner CHANGCHUN HYPERIONS TECH CO LTD
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