Organic electroluminescent device and preparation method thereof
An electroluminescence device and electroluminescence technology, which can be applied in the manufacturing of organic semiconductor devices, electric solid state devices, semiconductor/solid state devices, etc., and can solve problems such as low luminous efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0036] Please also see figure 2 , the preparation method of the organic electroluminescent device 100 of an embodiment, it comprises the following steps:
[0037] Step S110 , sequentially vapor-depositing the hole injection layer 20 , the first hole transport layer 32 , the first light emitting layer 34 and the first electron transport layer 36 on the surface of the anode.
[0038] The anode 10 is indium tin oxide glass (ITO), aluminum zinc oxide glass (AZO) or indium zinc oxide glass (IZO), preferably ITO.
[0039] In this embodiment, before the hole injection layer 20 is formed on the surface of the anode 10, the anode 10 is pretreated. The pretreatment includes: performing photolithography on the anode 10, cutting it into the required size, using detergent, deionized Water, acetone, ethanol, and isopropanone were each ultrasonically cleaned for 15 minutes to remove organic pollutants on the surface of the anode 10 .
[0040] The hole injection layer 20 is formed on the s...
Embodiment 1
[0056] The structure prepared in this example is ITO / WO 3 / TCTA / BCzVBi / Bphen / CsF:MoO 3 / CsF:CuPc / CuPc:NPB / TCTA / BCzVBi / TAZ / LiF / Al organic electroluminescent device. Wherein, " / " indicates a stacked structure, and ":" indicates doping or mixing, and the following embodiments are the same.
[0057] First carry out photolithography treatment on ITO, cut it into the required size, and then use detergent, deionized water, acetone, ethanol, and isopropanol to sonicate for 15 minutes each to remove organic pollutants on the glass surface; evaporate the hole injection layer , the material is WO 3 , the thickness is 30nm; evaporate the first hole transport layer, the material is TCTA, the thickness is 40nm; evaporate the first light-emitting layer, the material is BCzVBi, the thickness is 20nm; evaporate the first electron transport layer, the material is Bphen, the thickness 100nm; evaporated charge generation layer, n-type layer is CsF:MoO 3 , CsF and MoO 3 The mass ratio is 1:20...
Embodiment 2
[0062] The structure prepared in this example is AZO / WO 3 / TCTA / ADN / TPBi / Cs 2 CO 3 :WO 3 / CsN 3 :MgPc / MgPc:TCTA / NPB / ADN / TAZ / CsN 3 / Pt organic electroluminescent devices.
[0063] First, the AZO glass substrate was washed with detergent, deionized water, and ultrasonic for 15 minutes to remove organic pollutants on the glass surface; the hole injection layer was prepared by evaporation, and the material was WO 3 , the thickness is 80nm; the first hole transport layer is prepared by evaporation, the material is TCTA, and the thickness is 60nm; the first light-emitting layer is prepared by evaporation, the material is ADN, and the thickness is 5nm; the first electron transport layer is prepared by evaporation, and the material is TPBi, thickness 200nm; evaporated charge generation layer, n-type layer is Cs 2 CO 3 :WO 3 , Cs 2 CO 3 with WO 3 The mass ratio is 1:100, the thickness is 10nm, and the middle layer material is CsN 3 : MgPc, CsN 3 The mass ratio to MgPc is 1...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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