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CN-122002979-A - Film, preparation method thereof, photoelectric device and display device

CN122002979ACN 122002979 ACN122002979 ACN 122002979ACN-122002979-A

Abstract

The application belongs to the technical field of display, and relates to a film, a preparation method thereof, a photoelectric device and a display device. The thin film comprises a polymer barrier layer and an opening, wherein the polymer barrier layer is provided with an excitation unit and a luminescent material, and the excitation unit is arranged in the opening, and the material of the excitation unit comprises metal nano particles. The excitation unit with the metal nano particles in the opening has a surface plasmon effect, so that the excitation efficiency of the luminescent material can be effectively improved, and the luminescent effect can be enhanced.

Inventors

  • Cai Liangqiang
  • ZHAN TAO

Assignees

  • 广东聚华印刷显示技术有限公司

Dates

Publication Date
20260508
Application Date
20241101

Claims (13)

  1. 1. A film, comprising: a polymeric barrier layer having an opening; The opening is provided with an excitation unit and a luminescent material, wherein the material of the excitation unit comprises metal nano particles.
  2. 2. The film of claim 1, wherein the film is a film of a film type, The polymeric barrier layer has opposed first and second surfaces, the opening extending through the first and second surfaces, or the opening extending through the first surface, and/or At least part of the luminescent material is in contact with the excitation unit in the opening, and/or The average particle diameter of the metal nano particles is 20-30 nm, and/or The mass ratio of the metal nano particles to the luminescent material is 1 (5-8).
  3. 3.A film according to claim 2, wherein, The opening comprises a bottom surface and a side wall connecting the bottom surface and the first surface, wherein at least part of the bottom surface and/or at least part of the side wall is/are attached with the excitation unit; the distance between the surface of the excitation unit and the side wall is 1-2 um in the extending direction parallel to the second surface, and/or the distance between the surface of the excitation unit and the bottom surface is 1-2 um in the extending direction perpendicular to the second surface, or The opening comprises a side wall connecting the first surface and the second surface, wherein at least part of the side wall is attached with the excitation unit; in the extending direction parallel to the second surface, the distance between the surface of the excitation unit and the side wall is 1-2 um, and/or The luminescent material is arranged on the surface of the excitation unit.
  4. 4. A film according to any one of claim 1 to 3, The metal nanoparticles are selected from at least one of silver and its alloys, gold and its alloys, platinum and its alloys, ruthenium and its alloys, rhodium and its alloys, palladium and its alloys, osmium and its alloys, iridium and its alloys, and/or The material of the polymer barrier layer comprises at least one of polymethyl methacrylate, polyvinyl chloride, polyvinylpyrrolidone, polyethylene, polyvinyl alcohol, polylactam or polybutylene oxalate, and/or The thickness of the polymer barrier layer is 4-10 um, and/or The luminescent material comprises at least one of single-structure quantum dots and core-shell structure quantum dots, wherein the shell layers of the core-shell structure quantum dots are one or more layers, the materials of the single-structure quantum dots, the core materials of the core-shell structure quantum dots and the shell layers of the core-shell structure quantum dots are respectively selected from at least one of II-VI compounds, IV-VI compounds, III-V compounds and I-III-VI compounds, wherein the I I-VI compounds comprise one or more of CdS、CdSe、CdTe、ZnS、ZnSe、ZnTe、ZnO、HgS、HgSe、HgTe、CdSeS、CdSeTe、CdSTe、ZnSeS、ZnSeTe、ZnSTe、HgSeS、HgSeTe、HgSTe、CdZnS、CdZnSe、CdZnTe、CdHgS、CdHgSe、CdHgTe、HgZnS、HgZnSe、HgZnTe、CdZnSeS、CdZnSeTe、CdZnSTe、CdHgSeS、CdHgSeTe、CdHgSTe、HgZnSeS、HgZnSeTe and HgZnSTe, the IV-VI compounds comprise one or more of SnS、SnSe、SnTe、PbS、PbSe、PbTe、SnSeS、SnSeTe、SnSTe、PbSeS、PbSeTe、PbSTe、SnPbS、SnPbSe、SnPbTe、SnPbSSe、SnPbSeTe and SnPbSTe, the I-V compounds comprise one or more of GaN、GaP、GaAs、GaSb、AlN、AlP、AlAs、AlSb、InN、InP、InAs、InSb、GaNP、GaNAs、GaNSb、GaPAs、GaPSb、AlNP、AlNAs、AlNSb、AlPAs、AlPSb、InNP、InNAs、InNSb、InPAs、InPSb、GaAlNP、GaAlNAs、GaAlNSb、GaAlPAs、GaAlPSb、GaInNP、GaInNAs、GaInNSb、GaInPAs、GaInPSb、InAlNP、InAlNAs、InAlNSb、InAlPAs and InAlPSb, and the I-VI compounds comprise at least one of CuInS 2 、CuInSe 2 and AgInS 2 .
  5. 5. A method of producing a film, the method comprising the steps of: Providing a polymeric barrier layer; disposing a first mixed solution containing metal nanoparticles on the polymer barrier layer, forming an opening in the polymer barrier layer, and forming an excitation unit containing the metal nanoparticles in the opening; And (5) arranging a luminescent material in the opening to obtain the film.
  6. 6. The method for producing a film according to claim 5, wherein, The polymeric barrier layer has opposed first and second surfaces, the opening extending through the first and second surfaces, or the opening extending through the first surface, and/or At least part of the luminescent material is in contact with the excitation unit in the opening, and/or The average particle diameter of the metal nano particles is 20-30 nm, and/or The mass ratio of the metal nano particles to the luminescent material is 1 (5-8).
  7. 7. The method of producing a thin film according to claim 6, wherein the opening comprises a bottom surface and a side wall connecting the bottom surface and the first surface, wherein at least part of the bottom surface and/or at least part of the side wall is attached with the excitation unit; the distance between the surface of the excitation unit and the side wall is 1-2 um in the extending direction parallel to the second surface, and/or the distance between the surface of the excitation unit and the bottom surface is 1-2 um in the extending direction perpendicular to the second surface; Or the opening comprises a side wall connecting the first surface and the second surface, wherein at least part of the side wall is attached with the excitation unit; in the extending direction parallel to the second surface, the distance between the surface of the excitation unit and the side wall is 1-2 um, and/or The luminescent material is arranged on the surface of the excitation unit.
  8. 8. A process for producing a film according to any one of claim 5 to 7, The metal nanoparticles are selected from at least one of silver and its alloys, gold and its alloys, platinum and its alloys, ruthenium and its alloys, rhodium and its alloys, palladium and its alloys, osmium and its alloys, iridium and its alloys, and/or The mass concentration of the metal nano particles in the first mixed solution is 100-200 mg/mL, and/or The first mixed solution also comprises a first organic solvent, wherein the first organic solvent comprises at least one of alkane solvent, alcohol solvent, ester solvent and aromatic hydrocarbon solvent, and/or The step of arranging the first mixed solution containing the metal nano particles on the polymer barrier layer comprises arranging liquid drops of the first mixed solution on the polymer barrier layer, standing and drying for 10-60 min, and/or The step of arranging the luminescent material in the opening concretely comprises the steps of providing a second mixed solution containing the luminescent material, arranging the second mixed solution in the opening, and drying.
  9. 9. The method for producing a film according to claim 8, wherein, The volume of the liquid drop is 500-800 pL, and/or The alkane solvent comprises at least one of an alkane solvent with 1-20 carbon atoms, an alkane solvent with 1-10 carbon atoms, an alkane solvent with 1-6 carbon atoms and an haloalkane solvent; Optionally, the alkane solvent is at least one selected from n-octane, n-hexane, n-heptane, n-nonane, dichloromethane, chloroform and carbon tetrachloride, and/or The alcohol solvent comprises at least one of an alcohol solvent with 1-20 carbon atoms, an alcohol solvent with 1-10 carbon atoms, an alcohol solvent with 1-6 carbon atoms and a halogenated alcohol solvent; Optionally, the alcohol solvent is at least one selected from methanol, ethanol, propanol, butanol, ethylene glycol, and glycerol, and/or The general formula of the ester solvent is R 1 COOR 2 ,R 1 and R 2 , which are independent from each other, are selected from substituted or unsubstituted alkyl with 1-20 carbon atoms, substituted or unsubstituted alkyl with 1-10 carbon atoms and substituted or unsubstituted alkyl with 1-6 carbon atoms, wherein the substituent of the substituted alkyl is halogen; optionally, the ester solvent is selected from at least one of methyl formate, ethyl formate, propyl formate, butyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate and methyl propionate, and/or The aromatic hydrocarbon solvent comprises at least one of an aromatic hydrocarbon solvent with 6-20 carbon atoms, an aromatic hydrocarbon solvent with 12-20 carbon atoms, an aromatic hydrocarbon solvent with 6-12 carbon atoms, an aromatic hydrocarbon solvent with 8-18 carbon atoms and a halogenated aromatic hydrocarbon solvent; Optionally, the aromatic hydrocarbon solvent is selected from at least one of diethylbenzene, trimethylbenzene, propylbenzene, isopropylbenzene, p-toluene isopropylbenzene, cyclohexylbenzene, butylbenzene, 1-methylnaphthalene, chlorobenzene, indene, and/or The second mixed solution further includes a second organic solvent, optionally, the second organic solvent includes at least one of chloroform, toluene, n-hexane, cyclohexane, n-heptane, n-octane, cycloheptane, and dioxane.
  10. 10. A process for producing a film according to any one of claim 5 to 7, The material of the polymer barrier layer comprises at least one of polymethyl methacrylate, polyvinyl chloride, polyvinylpyrrolidone, polyethylene, polyvinyl alcohol, polylactam or polybutylene oxalate, and/or The thickness of the polymer barrier layer is 4-10 um, and/or The luminescent material comprises at least one of single-structure quantum dots and core-shell structure quantum dots, wherein the shell layers of the core-shell structure quantum dots are one or more layers, the materials of the single-structure quantum dots, the core materials of the core-shell structure quantum dots and the shell layers of the core-shell structure quantum dots are respectively selected from at least one of II-VI compounds, IV-VI compounds, III-V compounds and I-III-VI compounds, wherein the I I-VI compounds comprise one or more of CdS、CdSe、CdTe、ZnS、ZnSe、ZnTe、ZnO、HgS、HgSe、HgTe、CdSeS、CdSeTe、CdSTe、ZnSeS、ZnSeTe、ZnSTe、HgSeS、HgSeTe、HgSTe、CdZnS、CdZnSe、CdZnTe、CdHgS、CdHgSe、CdHgTe、HgZnS、HgZnSe、HgZnTe、CdZnSeS、CdZnSeTe、CdZnSTe、CdHgSeS、CdHgSeTe、CdHgSTe、HgZnSeS、HgZnSeTe and HgZnSTe, the IV-VI compounds comprise one or more of SnS、SnSe、SnTe、PbS、PbSe、PbTe、SnSeS、SnSeTe、SnSTe、PbSeS、PbSeTe、PbSTe、SnPbS、SnPbSe、SnPbTe、SnPbSSe、SnPbSeTe and SnPbSTe, the I-II-VI compounds comprise one or more of GaN、GaP、GaAs、GaSb、AlN、AlP、AlAs、AlSb、InN、InP、InAs、InSb、GaNP、GaNAs、GaNSb、GaPAs、GaPSb、AlNP、AlNAs、AlNSb、AlPAs、AlPSb、InNP、InNAs、InNSb、InPAs、InPSb、GaAlNP、GaAlNAs、GaAlNSb、GaAlPAs、GaAlPSb、GaInNP、GaInNAs、GaInNSb、GaInPAs、GaInPSb、InAlNP、InAlNAs、InAlNSb、InAlPAs and InAlPSb, and the I-II-VI compounds comprise at least one of CuInS 2 、CuInSe 2 and AgInS 2 .
  11. 11. An optoelectronic device comprising the film according to any one of claims 1 to 4 or comprising the film produced by the film production method according to any one of claims 5 to 10.
  12. 12. The optoelectronic device of claim 11, further comprising a light emitting element, wherein the thin film is disposed on a light emitting side of the light emitting element, wherein the opening is disposed corresponding to the light emitting element, and wherein the excitation unit is disposed adjacent to the light emitting element.
  13. 13. A display apparatus comprising an optoelectronic device according to claim 11 or 12.

Description

Film, preparation method thereof, photoelectric device and display device Technical Field The application relates to the technical field of display, in particular to a film, a preparation method thereof, an optoelectronic device and a display device. Background Mi cro-LED technology is considered as the next generation of display technology in the consumer electronics field. Although Mi cro-LEDs still have technical challenges in terms of chips, mass transfer, full color and the like, the outstanding characteristics of high resolution, quick response, low energy consumption, long service life and the like are exhibited, the requirements of ultra-small and ultra-large display, such as virtual/enhanced display and the like, are met, and huge application potential is exhibited, so that extensive research is brought about in academia and industry. However, the luminous efficiency of the color conversion layer in the Mi cro-LED needs to be further improved. Disclosure of Invention Based on the above, the embodiment of the application provides a hair film, a preparation method thereof, an optoelectronic device and a display device. In order to solve the technical problems, the embodiment of the application provides a film, which adopts the following technical scheme: A film, comprising: a polymeric barrier layer having an opening; The opening is provided with an excitation unit and a luminescent material, wherein the material of the excitation unit comprises metal nano particles. In order to solve the technical problems, the embodiment of the application also provides a film preparation method, which adopts the following technical scheme: A method of preparing a film, the method comprising the steps of: Providing a polymeric barrier layer; disposing a first mixed solution containing metal nanoparticles on the polymer barrier layer, forming an opening in the polymer barrier layer, and forming an excitation unit containing the metal nanoparticles in the opening; And (5) arranging a luminescent material in the opening to obtain the film. In order to solve the technical problems, the embodiment of the application also provides a photoelectric device, which adopts the following technical scheme: an optoelectronic device comprising a luminescent film as described above, or comprising a film prepared by a film preparation method as described above. In order to solve the above technical problems, the embodiment of the present application further provides a display device, which adopts the following technical schemes: a display apparatus comprising an optoelectronic device as described above. Compared with the prior art, the embodiment of the application has the advantages that the excitation unit containing the metal nano particles in the opening has a surface plasmon effect, so that the excitation efficiency of the luminescent material can be effectively improved, and the luminescent effect is enhanced. Drawings In order to more clearly illustrate the solution of the present application, a brief description will be given below of the drawings required for the description of the embodiments, it being apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a schematic diagram of one embodiment of an optoelectronic device of the present application; FIG. 2 is a schematic diagram of another embodiment of an optoelectronic device according to the present application; FIG. 3 is a flow chart of one embodiment of a method of preparing a film according to the present application. Reference numeral 1, a polymer barrier layer, 101, a first surface, 102, a second surface, 11, an opening, 111, a bottom surface, 112, a side wall, 2, an excitation unit, 3, a luminescent material, 4, and a luminescent element. Detailed Description Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used in the description of this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of this application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases