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Organic electroluminescence device and manufacturing method thereof

An electroluminescent device and electroluminescent technology, which are applied in the fields of electro-solid devices, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve problems such as short service life, and achieve improved service life, simple preparation process, and improved service life. Effect

Inactive Publication Date: 2012-12-26
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, traditional organic electroluminescent devices generally have the defect of short service life, which limits their further application.

Method used

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  • Organic electroluminescence device and manufacturing method thereof
  • Organic electroluminescence device and manufacturing method thereof
  • Organic electroluminescence device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] a) Pre-treatment of transparent conductive glass substrate:

[0053] Use an ultrasonic cleaning machine to clean the transparent conductive glass substrate with detergent, ethanol, acetone, and pure water in sequence. The washing time is 5 minutes each time, and then stop for 5 minutes. Repeat 3 times respectively, and dry in an oven for use;

[0054] Surface activation treatment is performed on the cleaned transparent conductive glass substrate to increase the oxygen content of the conductive surface layer and improve the work function of the conductive layer surface.

[0055] The thickness of the conductive layer of the transparent conductive glass substrate is 100nm.

[0056] b) Preparation of functional layer and light-emitting layer: a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer are sequentially formed on the substrate by vacuum evaporation or solution coating. The hole injectio...

Embodiment 2

[0063] Embodiment 2: No simple substance film is adopted in the packaging film, other is the same as embodiment 1;

Embodiment 3

[0064] Embodiment 3: no single substance film is used in the packaging film, and the PET film does not contain Al film, and the others are the same as in the embodiment 1.

[0065] image 3 Contrast curves for the service life of the organic electroluminescent devices obtained in the above three embodiments, curves 1, 2, and 3 represent the luminous intensity of the organic electroluminescent devices in embodiment 1, embodiment 2 and embodiment 3 respectively It can be seen from the figure that the service life of the organic electroluminescent device obtained in Example 1 is significantly longer than that in Example 2 and Example 3 under the same luminous intensity.

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Abstract

The invention relates to an organic electroluminescence device. The organic electroluminescence device comprises an anode conducting substrate, a light-emitting layer, a cathode, and at least one layer of packaging film, wherein the anode conducting substrate, the light-emitting layer and the cathode are stacked in sequence; the packaging films comprise a silicon-oxygen compound film formed on the cathode, a nitrogen-silicon compound film formed on the silicon-oxygen compound film, and an elementary substance film formed on the nitrogen-silicon compound film and formed by metal or like metal of sulfur group or nitrogen group. According to the organic electroluminescence device, the high water and oxygen resistance of the silicon-oxygen compound film, the nitrogen-silicon compound film and the elementary substance film is made full use of, and the erosion of active substances such as external water, oxygen and the like on the organic electroluminescence device is effectively reduced, so that the organic function materials and the electrodes of the device are effectively protected, and the service life of the organic electroluminescence device is remarkably prolonged. In addition, the invention further relates to a manufacturing method for the organic electroluminescence device.

Description

【Technical field】 [0001] The invention relates to the field of optoelectronic technology, in particular to an organic electroluminescent device and a manufacturing method thereof. 【Background technique】 [0002] Although the organic electroluminescent device (OLED) is still in the research and development stage, its performance is excellent. It not only has the characteristics of bendability and softness, but also can make holes on the OLED as thin as candy paper without damaging its performance of maintaining normal light emission, even It can be cut arbitrarily, so it can avoid situations such as broken light bulbs. [0003] In addition, on a technical level, light-emitting diodes (LEDs) generate a lot of heat and require a heat dissipation mechanism, but OLEDs do not. Studies have found that when the OLED lamp and the fluorescent lamp are lit together, the temperature of the fluorescent lamp will rise from room temperature to 50°C, while the temperature of the OLED lamp ...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/54B32B9/04B32B15/00H01L51/56
Inventor 周明杰王平钟铁涛黄辉
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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