Organic flexible microdisk/metal nanowire heterojunction and preparation method thereof

A technology of metal nanowires and heterojunctions, applied in optical components, optics, instruments, etc., can solve problems that limit the application of mixed material systems, achieve the effects of eliminating propagation loss, simple preparation methods, and easy operation

Active Publication Date: 2018-11-02
INST OF CHEM CHINESE ACAD OF SCI +1
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Problems solved by technology

However, the limited tunable range caused by the narrow bandwidth of the gain medium severely limits the application of hybrid material systems in high-density and multiband optics

Method used

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  • Organic flexible microdisk/metal nanowire heterojunction and preparation method thereof
  • Organic flexible microdisk/metal nanowire heterojunction and preparation method thereof
  • Organic flexible microdisk/metal nanowire heterojunction and preparation method thereof

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preparation example Construction

[0047] The present invention also provides a method for preparing the above-mentioned organic flexible microdisk / metal nanowire heterojunction, the method is to integrate the organic flexible microdisk and the metal nanowire by using liquid phase self-assembly assisted by capillary force, and the method includes the following steps :

[0048] 1) First, the polymer is uniformly dissolved in an organic solvent;

[0049] 2) water is then added and ultrasonically induced to agglomerate the polymer into independent emulsion microspheres;

[0050] 3) dispersing the metal nanowires in a solvent to obtain a dispersion system of the metal nanowires;

[0051] 4) adding a dispersion system of metal nanowires to the above-mentioned solution containing independent emulsion microspheres to form a mixed system;

[0052] 5) The above mixed system is poured onto the substrate, and then covered with another layer of substrate, and dried, and the organic flexible microdisk / metal nanowire heter...

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Abstract

The invention discloses an organic flexible microdisk / metal nanowire heterojunction, a preparation method and application thereof. The organic flexible microdisk / metal nanowire heterojunction comprises organic flexible microdisks adopted as medium light sources, and metal nanowires arranged on mounted on the surface of a medium waveguide. According to the formation of the heterojunction, a composite structure which adopts the organic medium light sources as a main body and the metal nanowires as branches is formed. The flexible organic matrices in the organic flexible microdisk can be doped with a plurality of organic laser dyes, so that the organic flexible microdisks can cover full-visible light spectra. The preparation method is simple and easy to operate. According to the heterojunction prepared by a capillary force-assisted liquid phase self-assembly method, the metal nanowires can be separated from the substrate, and therefore, substrate-induced propagation loss can be eliminated, and the propagation performance of SPPs (surface plasmon polaritons) can be greatly improved. The heterojunction can be used to realize ultra-small-size high-throughput information light sources, the high-throughput information processing of photoelectric information loops, and high-throughput information sensing and can be applied to other fields.

Description

technical field [0001] The invention belongs to the technical field of metal nanowire heterojunction, and in particular relates to an organic flexible microdisk / metal nanowire heterojunction, a preparation method thereof, and an application in laser performance. Background technique [0002] Micro-nano lasers with broadband tunable performance have attracted extensive attention in the fields of general lighting, laser display, multi-color detection, and multi-band communication. In recent years, a variety of dielectric materials, such as colloidal quantum dots, photonic crystals, and semiconductor microcrystals, have been fabricated into microlasers with tunable bandgap. Unfortunately, both the mode volume and output of conventional dielectric lasers are limited by the diffraction limit. Surface plasmons (SPPs), a type of electromagnetic excitation at the metal-dielectric interface, can achieve subwavelength confinement of light in a wide spectral range and have been develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/00
CPCG02B5/008
Inventor 赵永生吕远超李勇军
Owner INST OF CHEM CHINESE ACAD OF SCI
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