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Polymer-nanometer metal oxide composite ink, and preparation method and application thereof

A nano-metal and oxide technology, applied in applications, inks, household appliances, etc., can solve the problems of increasing the cost of device preparation, difficulty in uniform thin film, low device yield, etc., achieving low film thickness dependence and reducing roughness. , Improve the effect of density and uniformity

Active Publication Date: 2016-07-20
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Problems solved by technology

However, since this type of material itself is an insulator, the thickness of this type of material is usually less than 10 nanometers in practical applications, and the device performance also shows a very strong film thickness dependence (see the journal literature [Phys.Chem.Chem.Phys. 2014, 16(43), 23792-23799]), in the actual large-area printing preparation process, it is difficult to precisely control a uniform film of about 10 nanometers, which easily leads to a low yield of the device, and also improves the device manufacturing process. cost

Method used

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  • Polymer-nanometer metal oxide composite ink, and preparation method and application thereof
  • Polymer-nanometer metal oxide composite ink, and preparation method and application thereof
  • Polymer-nanometer metal oxide composite ink, and preparation method and application thereof

Examples

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preparation example Construction

[0053] Preparation of polymer-nano metal oxide:

[0054] The nanometer metal oxide particle dispersion liquid and the polymer dispersion liquid are mixed through different volume ratios to obtain the polymer-nano metal oxide composite ink. Take ZnO:PEI composite ink as an example: ZnO dispersion liquid and PEI dispersion liquid are mixed according to different volume ratios, and then obtained by ultrasonic dispersion.

[0055] Preparation of polymer-nano metal oxide cathode modification layer:

[0056] The polymer-nano metal oxide composite ink can be deposited on the surface of the ITO electrode or the organic photoactive layer by methods such as spin coating and doctor blade coating to obtain a cathode modification layer. In some examples, a composite cathode modification layer is deposited on the surface of the cathode by spin coating in an organic photoelectric device with an inverted structure.

[0057] The nanometer metal oxide-conductive polymer composition prepared b...

Embodiment 1

[0059] Example 1ZnO: Preparation of PEI Composite Ink and Application in Organic Photovoltaic Devices

[0060] The specific operating process of the present embodiment is as follows:

[0061] 1. Preparation of ZnO nanoparticles: Take 2.950g of zinc acetate dihydrate, dissolve it in 125mL of anhydrous methanol, heat and stir to 60°C. Take 1.480g of potassium hydroxide, dissolve it in 65mL of anhydrous methanol, ultrasonically dissolve, add the methanol solution of potassium hydroxide to the zinc acetate solution drop by drop, and stir magnetically at 600rpm for 2h under heating at 60-65°C. During the reaction process, the solution was colorless at first, then a white precipitate appeared until the precipitate gradually disappeared, and the solution turned light blue, and a white precipitate appeared after about 2h. Continue heating for 0.5h, stop heating, and the reaction is complete.

[0062] 2. Preparation of ZnO ink: After the preparation of ZnO nanoparticles is completed, ...

Embodiment 2

[0070] The preparation of ZnO:PEIE composite ink: get the solution of the PEIE (80% methoxylated polyethyleneimine) that the concentration is 10mg / ml ZnO ink (its preparation process can refer to embodiment 1) and weight concentration is 0.4% according to Different volume ratios were mixed and ultrasonically dispersed to obtain ZnO:PEIE composite ink.

[0071] Preparation of ZnO:PEIE composite cathode modification layer: the ZnO:PEIE composite cathode modification layer can be obtained by spin-coating on the surface of the ITO electrode at 2300rpm.

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Abstract

The invention discloses a polymer-nanometer metal oxide composite ink. The polymer-nanometer metal oxide composite ink comprises at least one polymer with a fatty amine unit, at least one nano-metal oxide particle and at least one organic alcohol solvent used as a solvent, wherein the polymer is preferably selected from linear or branched polyethylene imine, end position ethoxylated or ethylaminated polyethylene imine, or a polyethylene imine fragment-containing copolymer. The invention also discloses a preparation method of the composite ink. A composite film is produced through spin-coating or printing the composite ink, and can be applied in solar batteries, light emitting diodes and other optoelectronic devices as an electrode modification layer to improve contact performances between the electrode and an organic active layer in order to improve the performances of the optoelectronic devices.

Description

field of invention [0001] The invention specifically relates to a polymer-nanometer metal oxide composite ink, its configuration method and its application in optoelectronic devices, belonging to the field of optoelectronic semiconductor materials and devices. Background technique [0002] Compared with traditional inorganic optoelectronic devices, new solution-processable optoelectronic devices based on organic semiconductor materials, such as: organic solar cells, perovskite solar cells, organic light-emitting diodes (OLEDs), etc. The advantages of easy large-area roll-to-roll production have very broad application prospects. Such novel photoelectric conversion devices usually have a sandwich multilayer structure, including an anode, an active layer, and a cathode. Among them, the cathode mainly completes the electron injection (electroluminescence device) or collection (solar cell device) process. Common cathode electrode materials include: indium tin oxide electrode (I...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/03C09D11/52
Inventor 武娜王宜玲骆群马昌期
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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