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Composite film and its preparation method and application

A composite film and solid-state film technology, which is applied in the field of composite films, can solve the problems of high preparation cost, low lighting voltage optimization effect of device efficiency, and single electrode optimization point, so as to reduce obstacles, improve electron mobility, and increase electronic The effect of mobility

Active Publication Date: 2021-01-01
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a composite film and its preparation method, aiming to solve the problem of single electrode optimization point, high preparation cost, device efficiency and light-up voltage in the existing electrode, especially cathode (evaporation) preparation method. The problem of little optimization effect

Method used

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  • Composite film and its preparation method and application
  • Composite film and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0036] Correspondingly, a kind of preparation method of composite membrane comprises the following steps:

[0037] S01. Provide a metal oxide nanoparticle solution, a fullererol solution and a silane coupling agent solution, the metal oxide nanoparticle solution is alkaline, and the general formula of the silane coupling agent in the silane coupling agent solution is Y-R -Si(OX) 3 , wherein, OX is an alkoxyl group, R is selected from a hydrocarbon group or a hydrocarbon group derivative, and Y is selected from an amino group or a mercapto group;

[0038] S02. Depositing a metal oxide nanoparticle solution on the substrate, performing the first annealing treatment, and preparing a metal oxide nanoparticle solid film;

[0039] S03. After the silane coupling agent solution is deposited on the surface of the metal oxide nanoparticle solid film, the second annealing treatment is performed, and the silane coupling agent is oxidized by Y and the metal on the surface of the metal oxi...

Embodiment 1

[0075] A preparation method of composite nanoparticles, comprising the following steps:

[0076] S11.C 60 (OH) 36 was prepared as follows:

[0077] Add 10 mL (20 mmol / ml) of NaOH solution to the flask, and dropwise add 0.5 mL (10%) tetrabutylammonium hydroxide TBAH solution. With vigorous stirring, 12 mL containing 20 mg C 60 Toluene solution, then dropwise added 1ml (30%) of H 2 o 2 The solution was stirred for 2 hours. After standing still, the reaction mixture was divided into two layers, the upper layer was a colorless organic phase, and the lower layer was a brown-black aqueous phase. Liquid separation, filtration to remove insoluble matter in the water phase, to obtain a brown-black solution. Add methanol, precipitate (orange), and centrifuge to remove methanol; add water to dissolve the precipitate, then add methanol to precipitate, and repeat this 3-4 times until NaOH and TBAH are completely washed away. The resulting precipitate was vacuum-dried at room temper...

Embodiment 2

[0086] A QLED device, comprising a laminated and combined transparent anode, a quantum dot light-emitting layer, an electron transport layer and a cathode, the electron transport layer being the composite film prepared in Example 1.

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Abstract

The invention provides a composite film which comprises a fullerene layer and a metal oxide nanometer particle layer combined by lamination. In the combining interface of the fullerene layer and the metal oxide nanometer particle layer, fullerene in the surface of the fullerene layer and metal oxide nanometer particles in the surface of the metal oxide nanometer particle layer are crosslinked andcombined via a molecular bridge of -NH-R-Si(O-)3 or -SH-R-Si(O-)3, wherein R represents an alkyl or an alkyl derivative. The metal oxide nanometer particles are an n type semiconductor oxide.

Description

technical field [0001] The invention belongs to the technical field of composite membranes, in particular to a composite membrane and its preparation method and application. Background technique [0002] In the field of new display technology in the future, printing technology is expected to realize the industrial revolution of display. Display components based on quantum dot light-emitting diodes (QLED) and organic light-emitting diodes (OLED) are the subject of technical research. [0003] Printing and coating are a necessary means to realize large-area display technology. Some problems encountered when preparing large-area red, green and blue components (pixels) through printing and coating technology, such as: pixels, especially It is a blue pixel with low efficiency and high lighting voltage. At present, the analysis of these technical problems mainly takes the red, green and blue devices prepared separately by the solution method in the laboratory as the research obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/54H01L51/50H01L51/56B82Y30/00
Inventor 程陆玲杨一行
Owner TCL CORPORATION
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