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Organic light-emitting device and method for manufacturing same

An electroluminescent device and electroluminescent technology, which is applied in the fields of electro-solid device, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of high device manufacturing cost, poor waterproof and oxygen resistance, complicated supporting equipment, etc., and achieve stability good effect, preventing cracking, reducing complexity and cost of device fabrication

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 methods still have the problems of expensive raw materials, complex supporting equipment and high device manufacturing costs

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

[0055] Such as figure 2 Shown, the preparation method of above-mentioned organic electroluminescence device, comprises the following steps:

[0056] In step 201, 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 prepared on the cleaned anode conductive substrate by vacuum evaporation;

[0057] Step 202, on the cathode layer, first, prepare an organic barrier layer by vacuum evaporation; then, prepare a mixed barrier layer on the organic barrier layer by vacuum evaporation; finally, alternately stack organic Barriers and Hybrid Barriers; where,

[0058] The material of the organic barrier layer is CuPc (copper phthalocyanine), NPB (N,N'-diphenyl-N,N'-di(1-naphthyl)-1,1'-biphenyl-4,4 '-diamine), Alq3 (8-hydroxyquinoline aluminum), m-MTDATA (4,4',4″-tris(N-3-methylphenyl-N-phenylamino)triphenylamine) or BCP (4,7-diphenyl-1,10-phenanthroline);

[0059] The mate...

Embodiment 1

[0069] Such as Figure 1A As shown, the layered structure of the organic electroluminescent device of this embodiment includes: the anode conductive substrate 101a is an ITO glass substrate, and the hole injection layer 102a is MoO 3 : NPB layer, hole transport layer 103a is TCTA layer, light emitting layer 104a is TPBI: Ir(ppy) 3 Layer, electron transport layer 105a is Bphen layer, electron injection layer 106a is CsN 3 : Bphen layer, cathode layer 107a is Al layer, organic barrier layer 108a is CuPc layer and mixed barrier layer 109a is three (3-cyclododecylpropyl) boron: MoO 3 layer, where the colon ":" indicates mutual doping, and the structural formula of tris(3-cyclododecylpropyl)boron is shown in (P1).

[0070]

[0071] Such as image 3 As shown, the above-mentioned organic electroluminescent device is specifically prepared according to the following steps:

[0072] Step 301, preparation of the anode conductive substrate 101a: take the ITO glass substrate as the ...

Embodiment 2

[0084] Such as Figure 1B As shown, the layered structure of the organic electroluminescent device of this embodiment includes: the anode conductive substrate 101b is an ITO glass substrate, and the hole injection layer 102b is MoO 3 : NPB layer, hole transport layer 103b is TCTA layer, light emitting layer 104b is TPBI: Ir(ppy) 3 Layer, electron transport layer 105b is Bphen layer, electron injection layer 106b is CsN 3 : Bphen layer, cathode layer 107b is Al layer, organic barrier layer 108b is NPB layer and mixed barrier layer 109b is three (11-(3-methylcycloheptyl) undecyl) boron: V 2 o 5 layer, where the colon ":" indicates mutual doping, and the structural formula of tris(11-(3-methylcycloheptyl)undecyl)boron is shown in (P2).

[0085]

[0086] Such as image 3 As shown, the above-mentioned organic electroluminescent device is specifically prepared according to the following steps:

[0087] Step 301~step 307 are the same as embodiment 1;

[0088] Step 308, prepa...

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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 selected cyclic alkane and selected oxide of boron are doped with each other according to certain proportions to form the mixed barrier layers, so that cooperative densifying effects can be realized for the organic light-emitting device; the organic barrier layers and the mixed barrier layers are alternately stacked, so that the waterproof and anti-oxygen performance and the stability 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 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 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 futu...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/54H01L51/56
CPCH10K50/8445H10K50/844
Inventor 周明杰钟铁涛王平黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD