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

Organic light emitting device and manufacturing method

An electroluminescent device and luminescent technology, which is applied in the direction of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of poor water resistance and water vapor affecting electrical properties, etc., and achieve corrosion resistance and stress durability Strong resistance, strong oxygen shielding ability, and low-cost raw materials

Inactive Publication Date: 2015-05-20
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water blocking ability of organic materials is poorer than that of inorganic materials, so water vapor easily penetrates into organic light-emitting devices and affects its electrical properties.

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 device and manufacturing method
  • Organic light emitting device and manufacturing method
  • Organic light emitting device and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The method for preparing the above-mentioned organic electroluminescent device specifically includes the following steps:

[0041] (a) A hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode layer are sequentially formed on the cleaned anode conductive substrate by vacuum evaporation;

[0042] (b) On the cathode layer, a first organic barrier layer is prepared by plasma-enhanced chemical vapor deposition, and then a first inorganic barrier layer is prepared by magnetron sputtering on the first organic barrier layer, and then On the first inorganic barrier layer, a plasma-enhanced chemical vapor deposition method is used to prepare a second organic barrier layer, and finally a second inorganic barrier layer is prepared on the second organic barrier layer by magnetron sputtering, so that the The first organic barrier layer, the first inorganic barrier layer, the second organic barrier l...

Embodiment 1

[0055] like figure 1 As shown, the organic electroluminescent device of this embodiment is a layered structure, and each layer is sequentially: an anode conductive substrate 101, a hole injection layer 102, a hole transport layer 103, a light-emitting layer 104, an electron transport layer 105, and an electron injection layer. layer 106, a cathode layer 107, a first organic barrier layer 108, a first inorganic barrier layer 109, a second organic barrier layer 110 and a second inorganic barrier layer 111 which overlap in sequence.

[0056] The structure of the organic electroluminescent device is ITO / MoO 3 :NPB / TCTA / TPBI:Ir(ppy) 3 / Bphen / CsN 3 :Bphen / Al / SiOxNy / Si 3 N 4 :AlB 2 / SiOxNy / Sb 2 Se 3 :Si 3 N 4 , where: the slash " / " indicates a layered structure, and the colon ":" indicates mutual doping. Specifically (in the following embodiments, the doping method here is the same as that in Embodiment 1, and will not be repeated here):

[0057] ITO is the material of the...

Embodiment 2

[0080] like figure 2 As shown, the organic electroluminescent device of this embodiment is a layered structure, and each layer is sequentially: an anode conductive substrate 201, a hole injection layer 202, a hole transport layer 203, a light-emitting layer 204, an electron transport layer 205, and an electron injection layer. Layer 206 , cathode layer 207 , first organic barrier layer 208 , first inorganic barrier layer 209 , second organic barrier layer 210 and first inorganic barrier layer 211 overlapped in sequence.

[0081] The structure of the organic electroluminescent device is ITO / MoO 3 :NPB / TCTA / TPBI:Ir(ppy) 3 / Bphen / CsN 3 :Bphen / Al / SiOxNy / AlN: LaB 6 / SiOxNy / Sb 2 Se 3 : Si 3 N 4 , wherein: the oblique bar " / " indicates a layered structure, and the colon ":" indicates mutual doping (the material doped in each layer of this embodiment is not exactly the same as that of Example 1, but the method of doping is the same as that of Example 1, No longer).

[0082] ...

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

No PUM Login to View More

Abstract

The invention relates to an organic light emitting device and a manufacturing method. The organic light emitting device is of stratified structure. The stratified structure sequentially comprises a conductive anode substrate, a hole injection layer, a hole transmission layer, a light emitting layer, an electronic transmission layer, an electronic injection layer and a cathode layer, a barrier layer is arranged on the cathode layer and is composed of a first organic barrier layer, a first inorganic barrier layer, a second organic barrier and a second inorganic barrier layer, which are stacked sequentially. The first and the second organic barrier layers are made of nitrogen and oxygen silicon compound of a chemical formula SiOxNy, wherein x indicates oxygen content, 0.01<x<2, y stands for nitrogen content, and 0.01<y<1.3. As with the organic barrier layers and the inorganic barrier layers, which are alternatively stacked, the organic light emitting device is high in compactness and good in water oxidation resistance performance. In addition, the manufacturing method of the organic light emitting device has the advantages of low-cost materials, simplicity in process and easy large-area manufacturing and the like.

Description

technical field [0001] The invention relates to the field of optoelectronic devices, in particular to an organic electroluminescent 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 organic light-emitting material tens of nanometers thick on the indium tin oxide (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] OLED devices have the advantages of active luminescence, high luminous efficiency, low power consumption, lightness, thinness, and no viewing angle restrictions. They are considered by industry insiders to be the new generation of devices that are most likely to occupy a dominant position in the future...

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): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K50/844H10K71/00
Inventor 周明杰钟铁涛王平陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD