A kind of organic functional thin film/ultra thin film and its preparation method and application

A technology of organic functional materials and ultra-thin films, applied in the field of organic functional material films, can solve the problems of material waste, small roughness, poor film uniformity, etc., achieve wide application prospects, achieve precise control, and easy assembly

Active Publication Date: 2022-02-11
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at problems such as waste of materials, poor film uniformity and lack of precise control of film thickness and nanostructure in the preparation of organic functional films in the prior art, and provides an organic functional film / ultra-film, the film thickness Thin, small roughness, can realize large area preparation

Method used

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  • A kind of organic functional thin film/ultra thin film and its preparation method and application
  • A kind of organic functional thin film/ultra thin film and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0037] (1) Preparation of pretreated substrate

[0038] Si / SiO 2 The sheet was ultrasonically cleaned with water, acetone, isopropanol, etc., and then treated with oxygen plasma. The treatment conditions included: the time was 200s, the power was 100W, and the pretreated Si / SiO with a static contact angle of 2° was obtained. 2 piece.

[0039] (2) Preparation of gas source

[0040] Select 30 spotting capillaries of 0.3mm×0.3mm and arrange them closely into a capillary array (such as figure 1 shown), control the gas source and pretreatment Si / SiO 2 The angle of the sheet is 90°, the height is 0.5mm, and saturated absolute ethanol is sucked into the air source.

[0041] (3) Preparation of organic functional thin films

[0042] Prepare an ethanol / water solution of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), the mass concentration of PEDOT:PSS is 1.1%, and the mass content of ethanol in the solvent accounts for 20%; then Use a micro-syringe to draw 20 ...

Embodiment 2

[0046] (1) Preparation of pretreated substrate

[0047] The glass sheet is ultrasonically cleaned with water, acetone, isopropanol, etc., and then treated with oxygen plasma. The treatment conditions include: the time is 200s, the power is 100W, and the pretreated glass sheet with a static contact angle of 2° is obtained.

[0048] (2) Preparation of gas source

[0049] Select an area of ​​1*1cm 2 The filter paper is the surface air source, the angle between the air source and the pretreated glass piece is controlled to be 60°, the height is 0.5mm, and saturated isopropanol is sucked into the air source.

[0050] (3) Preparation of organic functional thin films

[0051] Prepare PEDOT:PSS ethanol / water solution, the mass concentration of PEDOT:PSS is 1.1%, and the mass content of ethanol in the solvent accounts for 20%; then use a micro-syringe to draw 20μl PEDOT:PSS solution dropwise to 1*2cm Step 1) Prepared At the center of the pretreated glass sheet, let the droplet diffu...

Embodiment 3

[0055] (1) Preparation of pretreated substrate

[0056] Si / SiO 2 The sheet was ultrasonically cleaned with water, acetone, isopropanol, etc., and then treated with oxygen plasma. The treatment conditions included: the time was 200s, the power was 100W, and the pretreated Si / SiO with a static contact angle of 2° was obtained. 2 piece.

[0057] (2) Preparation of gas source

[0058] Select 30 spotting capillaries of 0.3mm×0.3mm and arrange them closely into a capillary array (such as figure 1 shown), control the gas source and pretreatment Si / SiO 2 The angle of the sheet is 90°, the height is 0.5mm, and saturated absolute ethanol is sucked into the air source.

[0059] (3) Preparation of organic functional thin films

[0060] Prepare an aqueous solution of MESO-tetrakis(4-sulfonylphenyl)porphine manganese chloride (MnTPPS), the mass concentration of MnTPPS is 1.0%; 2 Step 1) Prepared pretreated Si / SiO 2 At the center of the sheet, let the droplet spread to form a uniform ...

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Abstract

The invention relates to the field of functional material thin films, and discloses an organic functional thin film / ultra thin film, a preparation method and application thereof. The organic functional film / ultra-thin film of the present invention comprises a pretreatment substrate and an organic functional material deposited on the pretreatment substrate, the organic functional material is uniformly deposited into an organic functional film, and the static contact of the pretreatment substrate The angle is less than 65°. The organic functional thin film / ultra-thin film of the present invention uses the organic atmosphere to induce the Maragni effect between the gas-liquid interface to control the directional flow of the liquid film, and finally deposits the directional film on the pretreated substrate. The invention provides a non-contact scheme for preparing a large-area functional film, and at the same time realizes the precise control and preparation of the film shape and thickness.

Description

technical field [0001] The invention relates to the field of thin films of organic functional materials, in particular to an organic thin film / ultra thin film and its preparation method and application. Background technique [0002] Organic optoelectronic materials have been widely used in organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs), solar cells (OPVs), sensors, photodetectors, and many other devices, and thus have attracted extensive attention from the scientific and industrial communities. Compared with inorganic materials, organic materials have many advantages such as flexibility, large area, and low-cost manufacturing. High-quality organic functional thin films are crucial for the preparation of high-performance optoelectronic devices. [0003] At present, the preparation of organic functional thin films is mainly divided into two methods: gas phase method and solution method. The vapor phase method usually requires high vacuum cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/00C08J5/18C08L25/18C08L65/00
CPCC08J7/08C08J5/18C08J2365/00C08J2425/18C08J2325/18C08J2465/00
Inventor 刘兆馨李正陈胜楠乔雅丽宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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