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US 2020/0091455 A1Published application
Oled device and method for fabricating thereof
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorXianjie LI
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Abstract
The present application discloses an OLED device and a method for fabricating thereof. The device includes an electron injection layer, the electron injection layer is a surfactant embedded polyacid composite. By the above method, the present invention can make the internal electron injection into the device more effective, the device has higher luminous efficiency, and the fabricating process is simple, the stability is high, and the film quality is good.
Claims16
An OLED device, comprising:
- an electron injection layer, wherein the electron injection layer is a surfactant embedded polyacid composite, wherein the electron injection layer is tetraoctylammonium embedded silicotungstic acid;
- wherein the OLED device further comprises:
- a substrate;
- an anode formed on the substrate;
- a hole injection layer formed on the anode;
- a hole transport layer formed on the hole injection layer;
- a light emitting layer formed on the hole transport layer;
- an electron transport layer formed on the light emitting layer;
- a cathode formed on the electron injection layer;
- and
- wherein the electron injection layer is formed on the electron transport layer.
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An OLED device, comprising:
- an electron injection layer, wherein the electron injection layer is a surfactant embedded polyacid composite.
A method for fabricating an OLED device, comprising:
- providing a substrate;
- depositing a layer of anode material on the substrate by a method of magnetron sputtering to form an anode;
- depositing a hole injection layer material, a hole transport layer material, a light emitting layer material, an electron transport layer material sequentially on the anode by a vacuum evaporation deposition method and by adapting a multi-source organic molecular vapor deposition system, to form a hole injection layer, a hole transport layer, a light emitting layer and an electron transport layer sequentially;
- depositing a surfactant embedded polyacid composite solution on the electron transport layer by a material spin-on method in an inert gas environment to form an electron injection layer;
- and
- forming a cathode on the electron injection layer by the vacuum evaporation deposition method to form the OLED device.
3 more elements
Dependencies are inferred from the claim text.