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Preparation method and application of self-assembled conjugated polymer film

A conjugated polymer and self-assembly technology, used in semiconductor/solid-state device manufacturing, photovoltaic power generation, electrical components, etc., can solve the problems of amorphous structure, difficult separation of thin films, and difficult film formation, and achieve good interface optimization and improvement. Photoelectric properties, mild reaction conditions

Pending Publication Date: 2021-11-26
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some specific groups form an anchor structure with the ordered lattice arrangement of the substrate microscopically, so that a uniform film can be obtained macroscopically, but at the same time it also makes it difficult to separate the film from the substrate
On some flexible polymer substrates, there are no repeating and orderly anchoring sites to specifically combine with the anchoring groups, resulting in problems such as difficult film formation and amorphous structure, which make it difficult for us to apply CP films to flexible Electronics and some sensor applications
Currently, some solutions have been reported, such as graphene, MXene and MoS 2 Induced growth and imprinting of other materials, but these methods are expensive and difficult to prepare in large areas, and the introduction of other materials may cause the film to be polluted or damaged, which seriously affects the application prospects of conjugated polymer films in the field of optoelectronic devices

Method used

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  • Preparation method and application of self-assembled conjugated polymer film
  • Preparation method and application of self-assembled conjugated polymer film
  • Preparation method and application of self-assembled conjugated polymer film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a self-assembled conjugated polymer film, carried out according to the following steps:

[0042] 1) Cleaning treatment of beakers, sample bottles and silicon wafer substrates: the cleaning treatment of beakers, sample bottles and silicon wafer substrates is to ultrasonicate them in deionized water, ethanol, acetone and deionized water respectively for 15-20min, Dry it with high-purity nitrogen, and finally put the silicon wafer substrate into an oxygen plasma cleaning machine for 5 minutes.

[0043] 2) Preparation of carbazole derivative solvent: carbazole derivative is added in suitable organic solvent, optional solvent has dichloro, methane, dichloroethane, trichloromethane, chlorobenzene, toluene, and solution concentration is 10mg / mL, mixed and added to a 10mL sample bottle, put into a magnet and stirred thoroughly.

[0044] 3) Preparation of conjugated polymer films at the gas-liquid interface: Pour a poor solvent into a clean beaker, and th...

Embodiment 2

[0048] A preparation method of adjustable thickness, transferable, light-induced self-assembled conjugated polymer film is carried out according to the following steps:

[0049] 1) Cleaning treatment of beakers, sample bottles and silicon wafer substrates: the cleaning treatment of beakers, sample bottles and silicon wafer substrates is to ultrasonicate them in deionized water, ethanol, acetone and deionized water for 20 minutes respectively, and use high Blow dry with pure nitrogen, and finally place the silicon wafer substrate in an oxygen plasma cleaning machine for 15 minutes.

[0050] 2) Preparation of carbazole derivative solvent: carbazole derivative is added in suitable organic solvent, optional solvent has dichloro, methane, dichloroethane, trichloromethane, chlorobenzene, toluene, and solution concentration is 20mg / mL, mixed and added to a 10mL sample bottle, put into a magnet and stirred thoroughly.

[0051] 3) Preparation of conjugated polymer films at the gas-liq...

Embodiment 3

[0056] A method for preparing a volatile memristor using a light-induced self-assembled conjugated polymer film, the steps are as follows:

[0057] 1) Cleaning treatment of beakers, sample bottles and silicon wafer substrates: the cleaning treatment of beakers, sample bottles and silicon wafer substrates is to ultrasonicate them in deionized water, ethanol, acetone and deionized water for 30 minutes respectively, and use high Blow dry with pure nitrogen. Finally, put the silicon wafer substrate into an oxygen plasma cleaner for 10 min.

[0058] 2) Preparation of carbazole derivative solvent: carbazole derivative is added in suitable organic solvent, optional solvent has dichloro, methane, dichloroethane, trichloromethane, chlorobenzene, toluene, and solution concentration is 15mg / mL, mixed and added to a 10mL sample bottle, put into a magnet and stirred thoroughly.

[0059] 3) Preparation of conjugated polymer films at the gas-liquid interface: Pour a poor solvent into a cle...

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Abstract

The invention discloses a preparation method and application of a self-assembled conjugated polymer film. The conjugated polymer film is prepared by using ultraviolet light to induce organic molecule self-assembly polymerization at a gas-liquid interface, and specifically comprises the following steps: dissolving a carbazole derivative in an organic solvent, then selecting a proper poor solvent, dropwise adding the organic solution in which the carbazole derivative is dissolved on the surface of the poor solvent, and finally, obtaining the conjugated polymer film on the gas-liquid interface through light source irradiation induced self-assembly. The self-assembled conjugated polymer film has the characteristics of large area, good uniformity, controllable thickness, simple preparation process and low-cost construction, and can be used in the fields of organic memristors, organic transistors, optical detection and the like.

Description

technical field [0001] The invention belongs to the field of polymer semiconductor materials, and in particular relates to a preparation method and application of transferable and conjugated polymer semiconductor materials. Background technique [0002] Since the graphene material was mechanically exfoliated in 2004, more and more researchers have paid attention to two-dimensional materials. Its excellent performance makes it have great application prospects in the fields of electronic devices, energy and the environment. Compared with graphene, MoS 2 This kind of inorganic two-dimensional materials, organic conjugated polymer films, because of the low cost of material preparation, simple preparation process, high molecular plasticity and flexibility, etc., and the large specific surface area and the two-dimensional confinement brought by the planar structure The effect also has great application potential in optoelectronics and other fields. The organic conjugated polymer...

Claims

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Application Information

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IPC IPC(8): H01L51/00H01L51/30H01L51/46H01L51/54
CPCH10K71/00H10K71/40H10K71/80H10K10/46H10K85/6572H10K30/00H10K50/00Y02E10/549
Inventor 刘举庆张河山刘正东宋诚黄维
Owner NANJING UNIV OF TECH