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Organic light-emitting device and preparation method thereof

An electroluminescent device and electroluminescent technology, applied in the fields of electric solid device, semiconductor/solid state device manufacturing, electrical components, etc., can solve the problems of short lifespan, material aging, failure of light-emitting devices, etc. Long, anti-corrosion effect

Inactive Publication Date: 2014-12-03
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • 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

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

Examples

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preparation example Construction

[0044] Please also see figure 2 , the preparation method of the organic electroluminescent device 100 of one embodiment, it comprises the following steps:

[0045] Step S110 , forming a functional layer 20 on the conductive substrate 10 .

[0046] 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.

[0047] 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.

[0048] 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

[0070] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / CuPc / organic electroluminescent device with cap.

[0071] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0072] 1. Forming a functional layer on a conductive substrate.

[0073] 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.

[0074] 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, etha...

Embodiment 2

[0089] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / SiO / organic electroluminescent devices with encapsulation caps.

[0090] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0091] 1. Forming a functional layer on a conductive substrate.

[0092]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.

[0093] 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 acet...

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Abstract

Disclosed is an organic light-emitting device which includes a conductive substrate provided with anode patterns, a light-emitting layer, a cathode, a protective layer and a package cover, which are sequentially laminated. The material of the protective layer is copper phthalocyanine, silicon monoxide, magnesium fluoride or zinc sulfide. The package cover packages the light-emitting layer, the cathode and the protective layer on the conductive substrate. The package cover includes a barrier layer and a package layer laminated on the surface of the barrier layer. The material of the barrier layer is organic silicon. The material of the package layer is polyethylene glycol terephthalate. The service life of the organic light-emitting device is comparatively long. The invention also provides a preparation method for the organic light-emitting 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

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Application Information

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IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K85/111H10K50/84H10K50/11H10K50/844H10K71/00
Inventor 周明杰钟铁涛王平黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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