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Organic light-emitting diode device and manufacturing method thereof

An electroluminescent device and a luminescent technology, applied in the direction of organic semiconductor devices, organic semiconductor device materials, electric solid devices, etc., can solve the problems of short life of light-emitting devices, material aging, failure, etc., to prevent water and oxygen corrosion , long life, and the effect of improving the waterproof and oxygen capacity

Inactive Publication Date: 2014-10-01
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 diode device and manufacturing method thereof
  • Organic light-emitting diode device and manufacturing method thereof
  • Organic light-emitting diode device and manufacturing method thereof

Examples

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preparation example Construction

[0048] Please also see figure 2 , the preparation method of the organic electroluminescent device 100 of one embodiment, it comprises the following steps:

[0049] Step S110 , forming a functional layer 20 on the anode 10 .

[0050] 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.

[0051] The anode 10 may be a conductive glass substrate or a conductive organic polyethylene terephthalate (PET) film substrate. The anode 10 has an ITO layer prepared with an anode pattern. The thickness of the ITO layer is 100nm˜150nm.

[0052] Before forming the functional layer 20, the surface of the anode 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 anode 10 to improve the work function of the surface of the anode 10. Specifically, the anode 10...

Embodiment 1

[0081] The structure prepared in this example is: ITO / NPB: MoO 3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / The organic electroluminescent device with the cap; wherein, the oblique bar " / " indicates a layered structure, and the colon ":" indicates doping, the same below.

[0082] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0083] 1. Form a functional layer on the anode.

[0084] The anode is conductive glass. The anode has an ITO layer prepared with an anode pattern. The thickness of the ITO layer was 100 nm.

[0085] Before forming the functional layer, the surface of the anode 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 anode to improve the work function of the surface of the anode. Specifically, the anode was ultrasonically cleaned with acetone-free, ethanol, ionized water, and ethanol for 5...

Embodiment 2

[0102] The structure prepared in this example is: ITO / NPB: MoO3 / TCTA / TPBI:Ir(ppy) 3 / Bphen / Bphen:CsN 3 / Al / organic electroluminescent devices with capsulation.

[0103] The preparation method of the above-mentioned organic electroluminescent device comprises the following steps:

[0104] 1. Form a functional layer on the anode.

[0105] The anode is conductive glass. The anode has an ITO layer prepared with an anode pattern. The thickness of the ITO layer was 100 nm.

[0106] Before forming the functional layer, the surface of the anode 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 anode to improve the work function of the surface of the anode. Specifically, the anode was ultrasonically cleaned with acetone-free, ethanol, ionized water, and ethanol for 5 minutes in sequence, and then dried with nitrogen and oven-dried.

[0107] The material of the hole injection l...

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Abstract

An organic light-emitting diode device comprises an anode, a light-emitting layer, a cathode and a packaging cover, wherein the packaging cover packages the light-emitting layer and the cathode on the anode and comprises a first organic barrier layer, a first inorganic barrier layer formed on the surface of the first organic barrier layer, a second organic barrier layer formed on the surface of the first inorganic barrier layer and a second inorganic barrier layer formed on the second organic barrier layer. Materials of the first inorganic barrier layer include a nitride, a silicide and a carbide, and materials of the second inorganic barrier layer include a silicide and an oxide. The service life of the organic light-emitting diode device is long. The invention further provides a manufacturing method of the organic light-emitting diode 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 prepare a layer of organic light-emitting material with a thickness of tens of nanometers 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 provi...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K50/841H10K2102/00H10K50/844H10K71/00
Inventor 周明杰钟铁涛王平冯小明
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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