Unlock instant, AI-driven research and patent intelligence for your innovation.

Light-emitting layer material, light-emitting device and light-emitting device

A light-emitting layer, an unreplaced technology, applied in the field of materials, can solve the problems of unfavorable industrialization, life of light-emitting material devices, and unsatisfactory luminous efficiency, and achieve the effect of improving device life and efficiency and improving color purity

Pending Publication Date: 2022-07-29
JILIN OPTICAL & ELECTRONICS MATERIALS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a light-emitting layer material, aiming to solve the problem that the existing light-emitting materials are not ideal in terms of device life and luminous efficiency, and are not conducive to industrialization

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
  • Light-emitting layer material, light-emitting device and light-emitting device
  • Light-emitting layer material, light-emitting device and light-emitting device
  • Light-emitting layer material, light-emitting device and light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0085] The present invention does not limit the preparation method of the light-emitting device, and conventional methods in the field are sufficient. In the present invention, methods such as thin film evaporation, electron beam evaporation or physical vapor deposition are preferably used to evaporate metals and conductive oxides on the substrate. and their alloys to form an anode, and then an organic layer and an evaporation cathode are formed thereon to obtain a light-emitting device.

[0086] The present invention also provides a light-emitting device comprising the above-mentioned light-emitting device.

[0087] Specifically, the above-mentioned light-emitting devices can be applied to organic light-emitting devices (OLEDs), organic solar cells (OSCs), electronic paper (e-paper), organic photoreceptors (OPCs), organic thin film transistors (OTFTs), and the like.

Embodiment 1

[0091] Raw material A is identical with raw material C in embodiment 1

[0092]

[0093] Under nitrogen protection, raw material A-37 (40.00 mmol) and raw material B-37 (40.00 mmol) were dissolved in toluene solution, sodium tert-butoxide (80.00 mmol), tris(dibenzylideneacetone)dipalladium ( 0.40 mmol), tri-tert-butylphosphine (2.00 mmol), stir evenly, heat up to 110 ° C, and reflux for 8 h; after the reaction, drop the temperature slightly, use celite for filtration, remove salt and catalyst, and cool the filtrate to room temperature Then, wash with water three times, keep the organic phase, and then extract the aqueous phase with ethyl acetate; after combining the organic phases, use anhydrous magnesium sulfate to dry, and use a rotary evaporator to remove the solvent, and dissolve in petroleum ether / ethanol, After recrystallization and filtration, the filter cake was rinsed with petroleum ether for several times, and dried in an oven at 60° C. for 5 h to obtain Intermedi...

Embodiment 2

[0106]

[0107] Under nitrogen protection, raw material A-73 (40.00 mmol) and raw material B-73 (40.00 mmol) were dissolved in toluene solution, sodium tert-butoxide (80.00 mmol), tris(dibenzylideneacetone)dipalladium ( 0.40 mmol), tri-tert-butylphosphine (2.00 mmol), stir evenly, heat up to 110 ° C, and reflux for 8 h; after the reaction, drop the temperature slightly, use celite for filtration, remove salt and catalyst, and cool the filtrate to room temperature Then, wash with water three times, keep the organic phase, and then extract the aqueous phase with ethyl acetate; after combining the organic phases, use anhydrous magnesium sulfate to dry, and use a rotary evaporator to remove the solvent, and dissolve in petroleum ether / ethanol, After recrystallization and filtration, the filter cake was rinsed with petroleum ether for several times, and dried in an oven at 60° C. for 5 h to obtain Intermediate 1 (14.75 g, yield 78.25%).

[0108] Under nitrogen protection, raw ma...

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 invention is suitable for the technical field of materials, and provides a light-emitting layer material, a light-emitting device and a light-emitting device.The light-emitting layer material is a flat high-conjugate electron distribution system, molecules are effectively and sequentially stacked, and therefore optimal carrier transmission and migration are achieved under a certain electric field; meanwhile, some rigid molecular groups with high stereohindrance are synthesized in a molecular structure, and molecules are combined with long-range interaction and delocalization in a quite unique manner, so that effect charge density shuffling with short-distance high radiation attenuation rate can reduce a singlet state-triplet state gap to the greatest extent; a multi-ring conjugated rigid structure effectively inhibits vibration of a molecular ground state and an excited state, the reaction is carried out in a narrower emission band, and meanwhile, groups such as tertiary butyl and tertiary amyl are introduced to improve the color purity. The service life and the efficiency of a device prepared from the light-emitting layer material are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a light-emitting layer material, a light-emitting device and a light-emitting device. Background technique [0002] Organic Light Emission Diodes (OLED: Organic Light Emission Diodes) are also known as organic electric laser displays and organic light emitting semiconductors. OLED display technology has significant advantages such as self-luminescence, high brightness, fast response, wide viewing angle, wide color gamut, flexibility, ultra-thin, ultra-light, low driving voltage, low power consumption, and wide temperature. New display technologies with rapid technological changes have been extensively studied. [0003] The organic electroluminescence element is a self-luminous element using the principle that by applying an electric field, a fluorescent substance can emit light by the recombination of holes injected from the anode and electrons injected from the ca...

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): C07F5/02C09K11/06H01L51/50H01L51/54
CPCC07F5/025C09K11/06C09K2211/1007C09K2211/1011C09K2211/1085C09K2211/1088C09K2211/1092C09K2211/1055C09K2211/1029H10K85/626H10K85/615H10K85/322H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K50/11
Inventor 汪康徐佳楠韩文坤马晓宇唐志杰张思铭
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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