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One -dimensional nuclear shell three -in -segment multi -color light emitting organic micro -nano crystal and its preparation and application

A core-shell three-block, organic technology, applied in the field of one-dimensional core-shell three-block multicolor light-emitting organic micro-nano crystals

Active Publication Date: 2022-04-01
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the dynamic nature of phase separation and molecular self-assembly, the preparation of one-dimensional core-shell organic micro-nanocrystals remains a great challenge.

Method used

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  • One -dimensional nuclear shell three -in -segment multi -color light emitting organic micro -nano crystal and its preparation and application
  • One -dimensional nuclear shell three -in -segment multi -color light emitting organic micro -nano crystal and its preparation and application
  • One -dimensional nuclear shell three -in -segment multi -color light emitting organic micro -nano crystal and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 6.9mg 2,5-methoxy-4,4'-bipyridine polystyrene (DPEpe), 4.0mg 1,4-diiodotetrafluorobenzene (F 4 DIB) and 5.2 mg of 4-bromo-2,3,5,6-tetrafluorobenzoic acid (BrFTA) were added to 4 mL of dichloromethane and sonicated for 3 min to obtain DPEpe-F 4 DIB-BrFTA dichloromethane stock solution. Take 1mL of the stock solution and add it to 1mL of ethanol, shake well, and put it in a water bath at 45°C for 5 minutes. After the incubation, take out the mixed solution and drop it directly on the substrate. After the organic solvent is evaporated to dryness at room temperature, a strong yellow color is obtained. - Red-yellow triblock spectroscopic organic eutectic microrods.

[0046] figure 1 is a schematic diagram of the structure of an organic eutectic microrod, which includes a core layer 1 and a shell layer 2. The core layer 1 is roughly in the shape of a one-dimensional rod. Along the axis direction of the core layer 1, the shell layer 2 is wrapped around the two ends of the co...

Embodiment 2

[0052] 6.9mg 2,5-methoxy-4,4'-bipyridine polystyrene (DPEpe), 4.0mg 1,4-diiodotetrafluorobenzene (F 4 DIB) and 5.2 mg of 4-bromo-2,3,5,6-tetrafluorobenzoic acid (BrFTA) were added to 4 mL of dichloromethane and sonicated for 3 min to obtain DPEpe-F 4 DIB-BrFTA dichloromethane stock solution. Take 1mL of the stock solution and add it to 2mL of ethanol, shake well, and put it in a water bath at 45°C for 5 minutes. After the incubation, take out the mixed solution and drop it directly on the substrate. After the organic solvent is evaporated to dryness at room temperature, a strong yellow color is obtained. - Red-yellow triblock spectroscopic organic eutectic microrods.

Embodiment 3

[0054] 6.9mg 2,5-methoxy-4,4'-bipyridine polystyrene (DPEpe), 4.0mg 1,4-diiodotetrafluorobenzene (F 4 DIB) and 5.2 mg of 4-bromo-2,3,5,6-tetrafluorobenzoic acid (BrFTA) were added to 4 mL of dichloromethane and sonicated for 3 min to obtain DPEpe-F 4 DIB-BrFTA dichloromethane stock solution. Take 1mL of the stock solution and add it to 2mL of ethanol, shake well, and put it in a water bath at 55°C for 5 minutes. After the incubation, take out the mixed solution and drop it directly on the substrate. After the organic solvent is evaporated to dryness at room temperature, a strong yellow color is obtained. - Red-yellow triblock spectroscopic organic eutectic microrods.

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Abstract

The invention relates to a one-dimensional core-shell three-block multicolor light-emitting organic micro-nano crystal and its preparation and application. The preparation method of the one-dimensional core-shell three-block multi-color light-emitting organic micro-nano crystal comprises the following steps: Styryl organic molecules are used as halogen bond and hydrogen bond acceptor molecules, both ends of oligostyrene-based organic molecules contain pyridine nitrogen, iodobenzene organic molecules are used as halogen bond donor molecules, and benzoic acid organic molecules or Its derivatives are hydrogen bond donor molecules; the halogen bond donor molecules, hydrogen bond donor molecules, halogen bond and hydrogen bond acceptor molecules are dissolved in a good organic solvent and mixed to obtain a stock solution; the stock solution is added to the poor Mix well in an organic solvent, and keep warm in a water bath at 40-65°C for 2-10 minutes to obtain a yellow-green clear solution, drop the obtained yellow-green clear solution on the substrate, and obtain a one-dimensional core-shell triembedding after the organic solvent evaporates to dryness. Segment multicolor luminescent organic micro-nanocrystals.

Description

technical field [0001] The invention relates to the technical field of organic crystal optoelectronic devices, in particular to a one-dimensional core-shell triblock multicolor light-emitting organic micro-nano crystal and its preparation and application. Background technique [0002] Core-shell nanostructures with excellent versatility, tunability, stability, dispersibility, and biocompatibility are widely used in the fields of optics, biomedicine, catalysis, and energy. The core-shell structure has achieved great success in low-dimensional inorganic nanomaterials. The superior photoelectric properties make these nanomaterials have very ideal prospects for photoelectric and thermoelectric applications. Shen Bo's research group successfully prepared GaN / InGaN core-shell microrods as gain media and active materials by metal-organic vapor deposition (MOCVD) to realize a continuously variable wavelength laser (ACS Nano, 2017, 11, 5808). It is well known that organic micro-nano...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06H01S3/16
CPCC09K11/06H01S3/1688C09K2211/1029C09K2211/1007
Inventor 廖良生卓明鹏余悦王雪东
Owner SUZHOU UNIV
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