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Organic electroluminescent device and preparation method thereof

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 problems such as failure, short life of organic electroluminescent devices, and material aging, and achieve long life, Improve the waterproof oxygen capacity and reduce the effect of damage

Inactive Publication Date: 2014-02-19
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after the organic electroluminescent device is eroded 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

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  • Organic electroluminescent device and preparation method thereof
  • Organic electroluminescent device and preparation method thereof
  • Organic electroluminescent device and preparation method thereof

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preparation example Construction

[0050] see figure 2 , the preparation method of the above-mentioned organic electroluminescent device 100 includes the following steps:

[0051] Step S110 , forming a functional layer 20 on the anode conductive substrate 10 .

[0052] The anode conductive substrate 10 may be a glass conductive substrate or a conductive organic polyethylene terephthalate (PET) film substrate. The anode conductive substrate 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 100nm~150nm.

[0053] The surface of the anode conductive substrate 10 is pretreated before the functional layer 20 is formed to remove the pollutants on the surface of the anode conductive substrate 10, and surface activation is performed to increase the oxygen content on the surface of the anode conductive substrate 10 to improve the work function of the surface of the anode conductive substrate 10 . Specifically, the anode conductive substrate 10 is ultrasonically cleaned with aceton...

Embodiment 1

[0082] The preparation structure is: ITO / NPB: MoO 3 / TCTA / TPBI: Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / CuPc / (SiC / PTFE) 3 / CaO / Cu / organic electroluminescent devices with encapsulation caps.

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

[0084] 1. Forming a functional layer on a conductive substrate.

[0085] 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.

[0086] 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 minut...

Embodiment 2

[0108] The preparation structure is: ITO / NPB: MoO 3 / TCTA / TPBI: Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / NPB / (WC / methacrylic resin) 3 / BaO / Ag / organic electroluminescent devices with capsulation.

[0109] 1. Forming a functional layer on a conductive substrate.

[0110] 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.

[0111] 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 minutes with acetone-free, ethanol, ionized water and ethanol in sequence, and then blown dry with nitrogen and oven-dried...

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Abstract

The invention relates to an organic electroluminescent device, comprising an anode conductive substrate, a luminescent layer, a cathode, a protective layer, a carbide layer, an organic barrier layer, a moisture absorption layer and a heat dissipation layer which are sequentially laminated, wherein the carbide layer is made of at least one of SiC, WC, TaC, BC, TiC and HfC; and the organic barrier layer is made of at least one of polytetrafluoroethylene, methacrylic resin and cycloaliphatic epoxy resin. The organic electroluminescent device further comprises a package cover, wherein the package cover packages the luminescent layer, the cathode, the protective layer, the carbide layer, the organic barrier layer, the moisture absorption layer and the heat dissipation layer on the anode conductive substrate. 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] 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 lighting and display device market. As a brand-new lighting and displa...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K50/8423H10K50/846H10K50/844H10K71/00
Inventor 周明杰王平钟铁涛张振华
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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