Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hole transport material, preparation method thereof and electroluminescent device

A technology of hole transport material and reaction container, which is applied in the field of electroluminescent devices, hole transport materials and their preparation, can solve the problems of unstable hole transport materials and unfavorable mass production, and achieve improved hole injection and transport Performance, improved electron and hole balance, effect of low voltage

Active Publication Date: 2021-03-30
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF13 Cites 1 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 hole transport material and its preparation method, and a display device to solve the problems in the prior art that the evaporated hole transport material is unstable and unfavorable for mass production when preparing a display device.

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
  • Hole transport material, preparation method thereof and electroluminescent device
  • Hole transport material, preparation method thereof and electroluminescent device
  • Hole transport material, preparation method thereof and electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In the embodiment of the present invention, a hole transporting material is provided, and the main chain in the molecular structure formula of the empty hole transport material is a screw structure, and its molecular structure formula is:

[0051]

[0052] Among them, Ar 1 AR 2 AR 3 AR 4 The at least one aryl or heteroaryl group is included; R is C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl group; 1 -R 6 Hydrogen, hydrazine, C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl groups; A, B, C, and D are integers of less than 5.

[0053] Specifically, in the embodiment of the present invention, the molecular structure of the AR1 is:

[0054]

[0055] And r 7 R 8 A aryl structure or a heteroaryl structure.

[0056] The R is the structural formula:

[0057]

[0058] The A-D is 0, and R 1 -R 6 All are hydrogen bonds.

[0059] Specifically, the molecular structure formula of the air hole transport material is:

[0060] ...

Embodiment 2

[0087] In the embodiment of the present invention, a hole transporting material is provided, and the main chain in the molecular structure formula of the empty hole transport material is a screw structure, and its molecular structure formula is:

[0088]

[0089] Among them, Ar 1 AR 2 AR 3 AR 4 The at least one aryl or heteroaryl group is included; R is C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl group; 1 -R 6 Hydrogen, hydrazine, C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl groups; A, B, C, and D are integers of less than 5.

[0090] Specifically, in the embodiment of the present invention, the molecular structure of the AR1 is:

[0091] And r 7 R 8 A aryl structure or a heteroaryl structure.

[0092] The R is the structural formula:

[0093]

[0094] The A-D is 0, and R 1 -R 6 All are hydrogen bonds.

[0095] Specifically, the molecular structure formula of the air hole transport material is:

[0096]

[0097]...

Embodiment 3

[0123] In the embodiment of the present invention, a hole transporting material is provided, and the main chain in the molecular structure formula of the empty hole transport material is a screw structure, and its molecular structure formula is:

[0124]

[0125] Among them, Ar 1 AR 2 AR 3 AR 4 The at least one aryl or heteroaryl group is included; R is C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl group; 1 -R 6 Hydrogen, hydrazine, C 1 -C 60 Alkyl, C 1 -C 60 Aryl or C 1 -C 60 At least one of the heteroaryl groups; A, B, C, and D are integers of less than 5.

[0126] Specifically, in the embodiment of the present invention, the molecular structure of the AR1 is:

[0127]

[0128] And r 9 R 10 For a aryl structure or heteroaryl structure, the structure of L is:

[0129]

[0130] The structure of the R is:

[0131]

[0132] The A-D is 0, and R 1 -R 6 All are hydrogen bonds.

[0133] Specifically, the molecular structure formula of the air hole 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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a hole transport material, a preparation method thereof and an electroluminescent device. The main chain of the molecular structure of the hole transport material has a spiroanthracene fluorene structure, and the branched chain structure of the molecular structure has an aryl or heteroaryl structure. The hole transport material provided by the invention can effectively improve the hole injection and transport performance of an organic material, thereby improving the electron and hole balance of an electroluminescent device, and achieving lower voltage and higher efficiency.

Description

Technical field [0001] The present invention relates to a display technology, in particular, a hole transporting material and a preparation method thereof, an electroluminescent device. Background technique [0002] The organic electronic device refers to a device consisting of an anode, a cathode and an organic layer sandwiched between the anode and the cathode, including an organic light emitting diode, an organic solar cell, an organic semiconductor, an organic crystal, and the like. The working principle is to apply an external voltage on the electrode, and the holes and electrons are injected into the organic layer to form an exciton, thereby radiation light-emitting (organic light emitting diode); or the external light source is absorbed by the organic material to form an exciton, and the exciton is separated Point, electrons are transmitted to electrodes to store (organic solar cells). [0003] The organic layers of the organic electronics are one or more layers of organic...

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): C07C211/61C07C209/10H01L51/54C07D307/91C07D265/38
CPCC07C211/61C07D307/91C07D265/38C07C2603/97H10K85/615H10K85/624H10K85/633H10K85/657H10K85/6574Y02E10/549H10K50/15
Inventor 王彦杰罗佳佳白科研
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com