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Organic nanomaterial based on monosubstitution or disubstitution of carbazole (Cz) by 9-phenylfluorene (PF), and preparation method and application of organic nanomaterial

An organic nanomaterial, nonaphenylfluorene technology, applied in the nanometer field, can solve problems such as lack, and achieve the effects of regular morphology, easy operation and uniform size

Active Publication Date: 2019-12-17
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]Although so far, it has been reported to control molecular self-assembly by adjusting the structure of organic molecules, such as adding different side chain groups, isomeric changes, introducing heteroatoms, etc. behavior, but rational molecular design rather than empirical experiments is still very lacking

Method used

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  • Organic nanomaterial based on monosubstitution or disubstitution of carbazole (Cz) by 9-phenylfluorene (PF), and preparation method and application of organic nanomaterial
  • Organic nanomaterial based on monosubstitution or disubstitution of carbazole (Cz) by 9-phenylfluorene (PF), and preparation method and application of organic nanomaterial
  • Organic nanomaterial based on monosubstitution or disubstitution of carbazole (Cz) by 9-phenylfluorene (PF), and preparation method and application of organic nanomaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The nano self-assembly experimental method of PFCz molecule: first preparation concentration is the surfactant CTAB aqueous solution of 2mM. Prepare a 12mL sample bottle, put it into the magnet, add 5mL of 2mM surfactant CTAB aqueous solution, and set aside. The PFCz molecule was completely dissolved in 1 mL of THF (tetrahydrofuran), and a solution with a concentration of 8 mM was prepared. Under the condition that the magneton rotates at a constant speed, use a pipette gun to inject the THF mixture containing the target molecule all at once into the sample bottle containing the surfactant CTAB aqueous solution, and stir for 4-8 minutes. During this process, white flocs can be seen with the naked eye, and after the stirring is completed, it turns into a milky white liquid. Take out the magnet, let the mixed solution stand at room temperature for about 48 hours, centrifuge at a speed of 17000r / min, and wash with ultrapure water for 4 to 5 times until the surfactant is c...

Embodiment 2

[0041] Experimental method for nanometer self-assembly of DPFCz molecules: firstly, an aqueous solution of surfactant CTAB with a concentration of 0.5 mM was prepared. Prepare a 12mL sample bottle, put it into the magnet, add 5mL of 0.5mM surfactant CTAB aqueous solution, and set aside. We completely dissolved the PFCz molecule in 2mL THF (tetrahydrofuran) to prepare a solution with a concentration of 0.5mM. Under the condition that the magneton rotates at a constant speed, use a pipette gun to inject the THF mixture containing the target molecule all at once into the sample bottle containing the surfactant CTAB aqueous solution, and stir for 4-8 minutes. During this process, white flocs can be seen with the naked eye, and after the stirring is completed, it turns into a milky white liquid. Take out the magnet, let the mixed solution stand at room temperature for about 48 hours, centrifuge at a speed of 17000r / min, and wash with ultrapure water for 4 to 5 times until the surf...

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Abstract

The invention discloses an organic nanomaterial based on monosubstitution or disubstitution of Cz by PF, and a preparation method and application of the organic nanomaterial, belonging to the fields of optoelectronic devices, organic laser and semiconductor electric storage. According to the organic nanomaterial in the invention, a re-precipitation method is adopted, two molecules, i.e., PFCz andDPFCz, are dissolved in a good tetrahydrofuran (THF) solvent, two formed solutions are rapidly and respectively added into a poor solvent containing the surfactant CTAB, and rapid stirring is carriedout so as to promote the generation of an organic nanocrystalline material. By adopting the classic re-precipitation method, operation is simple and cost is low. The prepared nano-structure is regularin morphology and uniform in size, and has a certain flexible characteristic. The organic nanomaterial, as an organic semiconductor material, shows application potential in flexible optoelectronic devices in the future.

Description

technical field [0001] The invention belongs to the field of nanotechnology, and in particular relates to an organic nanomaterial based on nonaphenylfluorene PF mono-substituted or double-substituted carbazole Cz and its preparation method and application. Background technique [0002] The relatively dense packing coupled with highly ordered structures make organic nanocrystals excellent materials for applications involving electron transport, fast mechanical actuation, etc. However, most of them are brittle and inferior to thin films and liquid crystals in terms of mechanical flexibility, which is crucial for future high-performance modular organic microelectronics. In recent years, flexible organic crystals have been extensively studied for their applications in waveguides, ferroelectrics, and field-induced strain-sensing transistors. Most molecular crystals usually fracture upon deformation without exhibiting any appreciable flexibility at the macroscopic level, while so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/86C09K11/06B82Y20/00B82Y40/00H01L51/00H10K99/00
CPCC07D209/86C09K11/06B82Y20/00B82Y40/00C09K2211/1011C09K2211/1029H10K85/626H10K85/615H10K85/6572Y02E10/549
Inventor 黄维刘怡然解令海汪莎莎
Owner NANJING UNIV OF POSTS & TELECOMM