Metal nanoparticle doped nanocrystal film and production method thereof

Abstract

The invention relates to a method (100) for increasing the radiation efficiency by plasma interaction in a polymer nanocrystal film produced by an extrusion process by metal nanoparticle doping, and to a metal nanoparticle doped nanocrystal film obtained by this method (100).

Description

Technical Field

[0001] The present invention relates to a method for improving radiation efficiency through plasma interaction in a polymer nanocrystal thin film produced by an extrusion method by doping with metal nanoparticles, and a metal nanoparticle-doped nanocrystal thin film obtained by this method. Background Art

[0002] Nanoparticles - which may include nanocrystals, quantum dots, and quantum well materials - are produced and used in a wide range of applications. Ligands bound to the surface of the nanoparticles provide various properties to the nanoparticles. Nanocrystals are added to polymer thin film structures and used in different applications. However, in the prior art, there is no nanocrystal thin film that enhances radiation efficiency through plasma interaction.

[0003] Therefore, there is a need for a metal nanoparticle-doped nanocrystal thin film and a method for producing the same.

[0004] Korean Patent Document No. KR20100053260 included in the prior art discloses a method for obtaining a polymer pattern and a metal particle pattern containing metal nanoparticles by using radiation or an ion beam. In this method, precursors of metal nanoparticles and a polymer are dissolved in a solvent. The solvent is coated on a substrate to form a polymer thin film. Then, a mask is placed on the polymer thin film, and an ion beam or radiation is applied to form a polymer pattern. Metal nanoparticles are obtained within the polymer pattern by removing non-bridging portions with a solvent. A metal nanoparticle pattern is formed by burning the polymer pattern in a combustion device. The metal nanoparticles mentioned in the invention can be any one of gold, silver, platinum, copper, iron, nickel, and manganese. Summary of the Invention

[0005] The object of the present invention is to achieve a method for improving radiation efficiency through plasma interaction in a polymer nanocrystal thin film produced by an extrusion method by doping with metal nanoparticles, and a metal nanoparticle-doped nanocrystal thin film obtained by this method. Detailed Description

[0006] The "metal nanoparticle-doped nanocrystal thin film and its production method" achieved to reach the object of the present invention is shown in the drawings, where: Figure 1 is a flowchart of the method of the present invention.

[0007] 100. Method The method (100) of the present invention for improving radiation efficiency through plasma interaction in a polymer nanocrystal thin film produced by an extrusion method by doping with metal nanoparticles includes the following steps: - Combine the particles containing nanocrystals, the particles containing metal nanoparticles, and the polymer particles in a container to obtain a homogeneous mixture (101); - Convert the homogeneous mixture into powder particles (102); and - Obtain a metal nanoparticle-doped nanocrystal film (103) by introducing the powder particle mixture into a blow molding extrusion device.

[0008] In the step (101) of combining the particles containing nanocrystals, the particles containing metal nanoparticles, and the polymer particles in a container to obtain a homogeneous mixture in the method (100) of the present invention, the particles containing one or more nanocrystals (with a size of 1 mg - 1000 g, dissolved in a solvent or in powder form), the particles containing one or more metal nanoparticles (with a size of 1 kg - 100 kg, dissolved in a solvent or in powder form), and the polymer particles (with a size of 1 kg - 100 kg) are mixed in a container, and by applying a temperature of 20 - 200 °C until a homogeneous mixture is obtained, and the mass ratio of nanocrystals and metal nanoparticles - polymer is 1:10000 - 1:1. The nanocrystal particles contained in the mixture are different types of compounds, such as any one of quantum dots and nanosheets, and contain cadmium (Cd), indium (In), zinc (Zn), selenium (Se), sulfur (S), phosphorus (P). The nanocrystal particles can be monochromatic or in a form that realizes multiple different radiations. The metal nanoparticles contained in the mixture are any one of silver (Ag), gold (Au), and their derivatives. The polymer particles contained in the mixture are extrudable polymers, such as any one of low-capacity and high-capacity polyethylene.

[0009] In the step (102) of converting the homogeneous mixture into powder particles in the method (100) of the present invention, the homogeneous mixture is placed in a vacuum oven, maintained at a temperature of 20 - 200 °C for 1 minute - 48 hours, and then completely dried and ground to obtain powder particles.

[0010] In the step (103) of obtaining a metal nanoparticle-doped nanocrystal film by introducing the powder particle mixture into a blow molding extrusion device in the method (100) of the present invention, the obtained powder particle mixture is processed in a blow molding extrusion device at a temperature of 100 - 230 °C in a line to be converted into a metal nanoparticle-doped nanocrystal film.

[0011] The metal nanoparticle-doped nanocrystal film produced by the method (100) of the present invention is used in display technology to enhance the radiation efficiency through plasma interaction.

[0012] Within these basic concepts, various embodiments of the present invention, "Metal nanoparticle-doped nanocrystal thin film and method for producing the same (100)", may be developed; the present invention is not limited to the examples disclosed herein and is essentially defined by the claims.

Claims

1. A method (100) for improving the radiation efficiency through plasma interaction in a polymer nanocrystal film produced by an extrusion method by doping with metal nanoparticles; characterized in that, Comprising the following steps: - Combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture (101); - Converting the homogeneous mixture into powder particles (102); and - Obtaining a metal nanoparticle-doped nanocrystal thin film (103) by introducing the powder particle mixture into a blow molding extrusion device.

2. The method (100) according to claim 1; characterized in that, In the step (101) of combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture; particles containing one or more nanocrystals (sized 1 mg - 1000 g, dissolved in a solvent or in powder form), particles containing one or more metal nanoparticles (sized 1 kg - 100 kg, dissolved in a solvent or in powder form), and polymer particles (sized 1 kg - 100 kg) are mixed in a container, and by applying a temperature of 20 - 200 °C until a homogeneous mixture is obtained, and the mass ratio of nanocrystals and metal nanoparticles - polymer is 1:10000 - 1:

1.

3. The method (100) according to claim 1 or 2, characterized in that, In the step (101) of combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture; the nanocrystal particles contained in the mixture are different types of compounds, such as any one of quantum dots, nanosheets, and contain cadmium (Cd), indium (In), zinc (Zn), selenium (Se), sulfur (S), phosphorus (P).

4. The method (100) according to any one of the preceding claims; characterized in that, In the step (101) of combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture; the nanocrystal particles can be monochromatic or in a form that realizes multiple different radiations.

5. The method (100) according to any one of the preceding claims; characterized in that, In the step (101) of combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture; the metal nanoparticles contained in the mixture are any one of silver (Ag), gold (Au), and their derivatives.

6. The method (100) according to any one of the preceding claims; characterized in that, In the step (101) of combining particles containing nanocrystals, particles containing metal nanoparticles, and polymer particles in a container to obtain a homogeneous mixture; the polymer particles contained in the mixture are extrudable polymers, such as any one of low-capacity and high-capacity polyethylene.

7. The method (100) according to any one of the preceding claims; characterized in that, In the step (102) of converting the homogeneous mixture into powder particles; the homogeneous mixture is placed in a vacuum oven and maintained at a temperature of 20 - 200 °C for 1 minute - 48 hours, and then completely dried and ground to obtain powder particles.

8. The method (100) according to any one of the preceding claims; characterized in that, In the step (103) of obtaining a metal nanoparticle-doped nanocrystal thin film by introducing the powder particle mixture into a blow molding extrusion device; the obtained powder particle mixture is processed in a blow molding extrusion device at a temperature of 100 - 230 °C in a line to be converted into a metal nanoparticle-doped nanocrystal thin film.

9. A metal nanoparticle-doped nanocrystal thin film produced by following the steps of the foregoing method (100); characterized in that, It is used in display technology to enhance the radiation efficiency through plasma interaction.

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