Supercharge Your Innovation With Domain-Expert AI Agents!

Organic light-emitting diode and preparation method thereof

An electroluminescence device and electroluminescence technology, which are applied in the directions of organic semiconductor devices, materials of organic semiconductor devices, and electric solid state devices, etc., can solve the problems of short lifespan, material aging and failure of light-emitting devices, and can block the corrosion of water and oxygen. , long life, improve the effect of water and oxygen resistance

Inactive Publication Date: 2014-10-01
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the organic electroluminescent device is corroded by moisture and moisture, the material of the internal components of the organic electroluminescent device will be aged and then become invalid, so that the life of the organic electroluminescent device is relatively short

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
  • Organic light-emitting diode and preparation method thereof
  • Organic light-emitting diode and preparation method thereof
  • Organic light-emitting diode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] Please also see figure 2 , the preparation method of the organic electroluminescent device 100 of one embodiment, it comprises the following steps:

[0048] Step S110 , forming a functional layer 20 on the anode 10 .

[0049] The functional layer 20 includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer stacked in sequence.

[0050] The anode 10 may be a conductive glass substrate or a conductive organic polyethylene terephthalate (PET) film substrate. The anode 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 100nm˜150nm.

[0051] Before forming the functional layer 20, the surface of the anode 10 is pretreated to remove pollutants on the surface of the substrate 10, and the surface is activated to increase the oxygen content on the surface of the anode 10 to improve the work function of the surface of the anode 10. Specifically, the anode 10...

Embodiment 1

[0082] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / The organic electroluminescent device with the cap; wherein, the oblique bar " / " indicates a layered structure, and the colon ":" indicates doping, the same below.

[0083] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0084] 1. Form a functional layer on the anode.

[0085] Anode 10 is conductive glass. The anode 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 150 nm.

[0086] Before forming the functional layer 20, the surface of the anode 10 is pretreated to remove pollutants on the surface of the substrate 10, and the surface is activated to increase the oxygen content on the surface of the anode 10 to improve the work function of the surface of the anode 10. Specifically, the anode 10 is ultrasonically cleaned for 5 minutes with acetone-free, ethanol, ion...

Embodiment 2

[0103] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(pp y ) 3 / Bphen / Bphen:CsN 3 / Al / organic electroluminescent devices with capsulation.

[0104] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0105] 1. Form a functional layer on the anode.

[0106] Anode 10 is conductive glass. The anode 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 120 nm.

[0107] Before forming the functional layer 20, the surface of the anode 10 is pretreated to remove pollutants on the surface of the substrate 10, and the surface is activated to increase the oxygen content on the surface of the anode 10 to improve the work function of the surface of the anode 10. Specifically, the anode 10 is ultrasonically cleaned for 5 minutes with acetone-free, ethanol, ionized water, and ethanol in sequence, and then blown dry with nitrogen and oven-dried.

[0108] The material...

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

An organic light-emitting diode comprises a positive pole, a light-emitting layer, a negative pole and a packaging cover which are stacked in sequence. The light-emitting layer and the negative pole are packaged on the positive pole through the packaging cover, and the packaging cover comprises a first organic barrier layer, a first inorganic barrier layer formed on the surface of the first organic barrier layer, a second organic barrier layer formed on the surface of the first inorganic barrier layer and a second inorganic barrier layer formed on the surface of the second organic barrier layer. Materials of the first organic barrier layer comprise a hole transport material and an electron transport material; materials of the first inorganic barrier layer comprise a metal oxide, a carbide and a sulfide; materials of the second organic barrier layer comprise a hole transport material and an electron transport material; and materials of the second inorganic barrier layer comprise a sulfide and a carbide. The organic light-emitting diode is long in service life. The invention further provides a preparation method for preparing the organic light-emitting diode.

Description

technical field [0001] The invention relates to an organic electroluminescence device and a preparation method thereof. Background technique [0002] Organic electroluminescent device (OLED) is a current-mode semiconductor light-emitting device based on organic materials. Its typical structure is to prepare a layer of organic light-emitting material with a thickness of tens of nanometers on the ITO glass as the light-emitting layer, and there is a metal electrode with a low work function above the light-emitting layer. When a voltage is applied to the electrodes, the light-emitting layer produces light radiation. [0003] After the organic electroluminescent device is corroded by moisture and moisture, the materials of the internal components of the organic electroluminescent device will be aged and then become invalid, so that the life of the organic electroluminescent device is relatively short. Contents of the invention [0004] Based on this, it is necessary to provi...

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): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K50/8445H10K50/841H10K2102/00H10K71/00
Inventor 周明杰钟铁涛王平冯小明
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