Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of organic semiconductor material, preparation method and electroluminescent device

An electroluminescent device, organic semiconductor technology, applied in semiconductor devices, semiconductor/solid-state device manufacturing, electric solid-state devices, etc., can solve problems such as lack, achieve high triplet energy level, improve luminous efficiency, and excellent thermal stability. Effect

Active Publication Date: 2016-01-27
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few efficient blue phosphorescent devices, mainly due to the lack of both good carrier transport performance and high triplet energy level (E T ) of the host material

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of organic semiconductor material, preparation method and electroluminescent device
  • A kind of organic semiconductor material, preparation method and electroluminescent device
  • A kind of organic semiconductor material, preparation method and electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The invention provides a kind of preparation method of organic semiconductor material, comprises the steps:

[0026] Provides compound A: and compound B: Under an inert atmosphere, compound A and compound B are added into an organic solvent containing a catalyst and an alkali solution at a molar ratio of 1:2 to 2.4, and the Suzuki coupling reaction is carried out at 70 to 130°C for 12 to 48 hours, and the reaction is stopped to obtain an organic The chemical formula of a semiconductor material is as follows:

[0027]

[0028] In a specific embodiment, the preparation method of the organic semiconductor material further includes a post-processing step, and the post-processing step specifically includes: extracting the organic semiconductor material obtained by stopping the reaction with dichloromethane, combining the organic phases with anhydrous sulfuric acid Magnesium is dried, and a mixed solvent of petroleum ether and ethyl acetate is used as the eluent to sep...

Embodiment 1

[0041] The preparation process of 2,5-bis(3,5-diphenylbenzene)thiophene sulfone The preparation steps are as follows:

[0042]

[0043] Under argon protection, add 2,5-dibromothiophene sulfone (55mg, 0.2mmol), 3,5-diphenylbenzopinacol borate (142mg, 0.4mmol) into a flask containing 10ml of toluene solvent After fully dissolving, potassium carbonate (2mL, 2mol / L) solution was added to the flask, vacuumed to remove oxygen and filled with argon, and then added bistriphenylphosphine palladium dichloride (5.6mg, 0.008mmol); The flask was heated to 100 °C for Suzuki coupling reaction for 24 h. Stop the reaction and cool to room temperature, extract three times with dichloromethane, combine the organic phases, dry over anhydrous magnesium sulfate and spin dry to obtain the 2,5-bis(3,5-diphenylbenzene)thiophene sulfone organic semiconductor material, Then using petroleum ether:ethyl acetate volume ratio of 10:1 as the eluent, the white crystals were separated by silica gel column ...

Embodiment 2

[0049] The preparation process of 2,5-bis(3,5-diphenylbenzene)thiophene sulfone The preparation steps are as follows:

[0050]

[0051] Under the protection of mixed gas of nitrogen and argon, 2,5-dibromothiophene sulfone (82mg, 0.3mmol), 3,5-diphenylbenzopinacol borate (235mg, 0.66mmol) and 15mL tetrahydrofuran were added In a two-neck bottle of 50mL size, after fully dissolving, pass in a mixture of nitrogen and argon to exhaust the air for about 20 minutes, then add tetrakistriphenylphosphine palladium (4mg, 0.003mmol) into it, and then add sodium bicarbonate after fully dissolving (3mL, 2mol / L) solution. Then the mixture of nitrogen and argon was exhausted for about 10 minutes, and the two-neck flask was heated to 70°C for Suzuki coupling reaction for 48 hours. Stop the reaction and cool to room temperature, extract three times with dichloromethane, combine the organic phases, dry over anhydrous magnesium sulfate and spin dry to obtain the 2,5-bis(3,5-diphenylbenzene)t...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention provides a kind of organic semiconductor material, and the chemical formula of described organic semiconductor material is as follows: the organic semiconductor material of the present invention has bipolar carrier transport capacity, makes the hole and electron transport balance in light-emitting layer; Simultaneously It also has a higher triplet energy level and excellent thermal stability, which effectively prevents the energy from being transferred back to the host material during the luminescence process, greatly improving the luminescence efficiency; the invention also provides a preparation method of the organic semiconductor material, and includes Electroluminescent devices of the organic semiconductor material.

Description

technical field [0001] The invention belongs to the field of photoelectric materials, and in particular relates to an organic semiconductor material, a preparation method and an electroluminescence device. Background technique [0002] Organic electroluminescent devices have the advantages of low driving voltage, fast response speed, wide viewing angle range, rich colors through fine-tuning of chemical structure, easy realization of high resolution, light weight, and large-area flat-panel display. 21st Century Flat Panel Display Technology" has become a research hotspot in the fields of materials, information, physics and flat panel display. Future efficient commercial OLEDs will likely contain organometallic phosphors because they can trap both singlet and triplet excitons, thereby achieving 100% internal quantum efficiency. However, due to the relatively long lifetime of excited-state excitons in transition metal complexes, the unwanted triplet-triplet (T 1 -T 1 ) are q...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C07D333/48C09K11/06H01L51/54
CPCC09K11/06C07D333/48C09K2211/1092H10K85/655
Inventor 周明杰王平张振华张娟娟
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com