Supercharge Your Innovation With Domain-Expert AI Agents!

Organic electroluminescent device and preparation method thereof

An electroluminescent device and luminescent technology, which are applied in the direction of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of short life of light-emitting devices, material aging, failure, etc., to prevent water vapor corrosion, Long life and improved waterproof oxygen ability

Inactive Publication Date: 2014-01-29
OCEANS KING LIGHTING SCI&TECH CO LTD +1
View PDF0 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 electroluminescent device and preparation method thereof
  • Organic electroluminescent device and preparation method thereof
  • Organic electroluminescent device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] Please also see figure 2 , the preparation method of the organic electroluminescent device 100 of one embodiment, it comprises the following steps:

[0044] Step S110 , forming a functional layer 20 on the conductive substrate 10 .

[0045] 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.

[0046] The conductive substrate 10 may be a glass conductive substrate or a conductive organic polyethylene terephthalate (PET) film substrate. The conductive substrate 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 100nm~150nm.

[0047] Before forming the functional layer 20, the surface of the conductive substrate 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 conductive substrate 10 to improve th...

Embodiment 1

[0071] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / CuPc / (SiC:H / SiC / PTFE) 3 / Encapsulated organic electroluminescent device.

[0072] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0073] 1. Forming a functional layer on a conductive substrate.

[0074] The conductive substrate 10 is a glass conductive substrate. The conductive substrate 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer was 100 nm.

[0075] Before forming the functional layer 20, the surface of the conductive substrate 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 conductive substrate 10 to improve the work function of the surface of the conductive substrate 10. Specifically, the conductive substrate 10 is ultrasonically cleaned for 5 minute...

Embodiment 2

[0094] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / NPB / (WC:H / WC / methacrylic resin) 3 / Encapsulated organic electroluminescent device.

[0095] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0096] 1. Forming a functional layer on a conductive substrate.

[0097] The conductive substrate 10 is a glass conductive substrate. The conductive substrate 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer was 100 nm.

[0098] Before forming the functional layer 20, the surface of the conductive substrate 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 conductive substrate 10 to improve the work function of the surface of the conductive substrate 10. Specifically, the conductive substrate 10 is ultrasonically cleaned fo...

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 an organic electroluminescent device comprising a conductive substrate, a light-emitting layer, a cathode, a protecting layer, blocking layers and an encapsulating cover which are sequentially layered. Each blocking layer comprises a first carbon oxide film, a second carbon oxide film and an organic retaining film which are sequentially layered, each first carbon oxide film is made of SiC:H, WC:H, TaC:H, BC:H, TiC:H or HfC:H, each second carbon oxide film is made of SiC, WC, TaC, BC, TiC or HfC, each organic retaining film is made of polytetrafluoroethylene, methacrylate resin or aliphatic epoxy resin, and the encapsulating cover encapsulates the light-emitting layer, the cathode, the protecting layer and the blocking layers on the conductive base and is made of a PET (polyethylene terephthalate) aluminum-plated film. The organic electroluminescent device is long in service life. The invention further provides a preparation method of the organic electroluminescent device.

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 make a layer of tens of nanometers thick organic light-emitting material 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 provide an organic ele...

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 Applications(China)
IPC IPC(8): H01L51/52H01L51/50H01L51/56
CPCH10K50/84H10K50/844H10K71/00
Inventor 周明杰王平钟铁涛陈吉星
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