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Organic light-emitting device and method for manufacturing same

An electroluminescent device and electroluminescent technology, which are applied in the directions of organic light-emitting device, organic light-emitting device manufacturing/processing, organic light-emitting device structure, etc., can solve the problems of complex manufacturing cost of supporting equipment, poor water and oxygen resistance, and expensive raw materials, etc. To achieve the effect of improving waterproof and oxygen resistance, preventing cracks and good stability

Inactive Publication Date: 2015-04-15
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

At present, flexible OLED devices comprising composite layers or barrier layers composed of organic or / and inorganic materials are the development trend of organic electroluminescent devices, but such existing devices still have the problems of poor waterproof and oxygen resistance and short life; The existing preparation method also has the problems of expensive raw materials, complicated supporting equipment and high manufacturing cost

Method used

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  • Organic light-emitting device and method for manufacturing same
  • Organic light-emitting device and method for manufacturing same
  • Organic light-emitting device and method for manufacturing same

Examples

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preparation example Construction

[0051] The method for preparing the above-mentioned organic electroluminescent device specifically includes the following steps:

[0052] (a) on the anode conductive layer of the cleaned anode conductive substrate, the method of vacuum evaporation is used to sequentially stack and prepare a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer and a cathode layer;

[0053] (b) On the cathode layer, first, prepare an organic barrier layer by vacuum evaporation; then prepare a hybrid barrier layer on the mixed barrier layer by magnetron sputtering; then, alternately stack several times to prepare Organic barrier layers and hybrid barrier layers; wherein,

[0054] The material of the organic barrier layer is copper phthalocyanine, N,N'-diphenyl-N,N'-di(1-naphthyl)-1,1'-biphenyl-4,4'-diamine, 8-Hydroxyquinoline aluminum, 4,4',4''-tris(N-3-methylphenyl-N-phenylamino)triphenylamine or 4,7-diphenyl-1,10-phenant...

Embodiment 1

[0062] Such as Figure 1A As shown, in the organic electroluminescence device of the present embodiment 1, the anode conductive substrate is an ITO glass substrate 101a, and the hole injection layer is MoO 3 : NPB layer 102a, hole transport layer is TCTA layer 103a, light emitting layer is TPBI: Ir(ppy) 3 layer 104a, electron transport layer is Bphen layer 105a, electron injection layer is CsN 3 : Bphen layer 106a, cathode layer is Al layer 107a, organic barrier layer is CuPc layer 108a, mixed barrier layer is tris(3-methylbutyl)gallium (structural formula is as follows): MoO 3 Layer 109a, where the colon ":" indicates mutual doping, and the structural formula of tris(3-methylbutyl)gallium is as follows (P1):

[0063]

[0064] The above-mentioned organic electroluminescent device is prepared according to the following steps:

[0065] Step S1, pretreatment of the anode conductive substrate 101a: use the ITO glass substrate 101a as the anode conductive substrate, and first...

Embodiment 2

[0077] Such as Figure 1B As shown, in the organic electroluminescence device of the present embodiment 2, the anode conductive substrate is an ITO glass substrate 101b, and the hole injection layer is MoO 3 : NPB layer 102b, hole transport layer is TCTA layer 103b, light emitting layer is TPBI: Ir(ppy) 3 Layer 104b, electron transport layer is Bphen layer 105b, electron injection layer is CsN 3 : Bphen layer 106b, cathode layer is Al layer 107b, organic barrier layer is CuPc layer 108b, mixed barrier layer is tris(3,7-dimethyloctyl)gallium (structural formula is as follows): V 2 o 5 Layer 109b, where the colon ":" indicates mutual doping, and the structural formula of tris(3,7-dimethyloctyl)gallium is as follows (P2):

[0078]

[0079] The above-mentioned organic electroluminescent device is prepared according to the following steps:

[0080] The above-mentioned organic electroluminescent device is prepared according to the following steps:

[0081] Step S1~step S7 ar...

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Abstract

The invention relates to an organic light-emitting device and a method for manufacturing the same. The organic light-emitting device is of a layered structure. The layered structure comprises an anode conductive substrate, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, a cathode layer, organic barrier layers and mixed barrier layers, the anode conductive substrate, the hole injection layer, the hole transport layer, the light-emitting layer, the electron transport layer, the electron injection layer, the cathode layer, the organic barrier layers and the mixed barrier layers are sequentially stacked on one another, and the organic barrier layers and the mixed barrier layers are alternately stacked on the cathode layer. The organic light-emitting device and the method have the advantages that the organic barrier layers and the mixed barrier layers are alternately stacked, and selected linear alkane and selected oxide of gallium are doped with each other according to certain proportions to form the mixed barrier layers, so that the waterproof and anti-oxygen performance of the device can be effectively improved, the service life of the device can be greatly prolonged, the complexity of manufacturing processes can be lowered, and the manufacturing cost of the device can be reduced.

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 ITO glass as the light-emitting layer, and there is a layer of low-light on the top of the light-emitting layer. work function of the metal electrode. 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 futur...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
CPCH10K85/00H10K50/00H10K50/84H10K2102/302H10K2102/00H10K71/00
Inventor 周明杰钟铁涛王平黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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