CN110802782A - Perovskite quantum dot composite film and preparation method thereof - Google Patents

Perovskite quantum dot composite film and preparation method thereof Download PDF

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Publication number
CN110802782A
CN110802782A CN201910921174.4A CN201910921174A CN110802782A CN 110802782 A CN110802782 A CN 110802782A CN 201910921174 A CN201910921174 A CN 201910921174A CN 110802782 A CN110802782 A CN 110802782A
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perovskite quantum
quantum dot
polymer
composite film
dot composite
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徐晓波
邢泽咏
王允军
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Suzhou Xingshuo Nanotech Co Ltd
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Suzhou Xingshuo Nanotech Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Luminescent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The application discloses perovskite quantum dot complex film includes: the perovskite quantum dot glass fiber comprises a glass matrix and perovskite quantum dots uniformly distributed in the glass matrix. The perovskite quantum dot composite film has good optical stability, is not easy to be damaged by oxygen, water vapor, heat and other factors in the external environment, and can still keep good stability in a high-temperature high-humidity environment. In addition, the perovskite quantum dot composite film is prepared by mixing the perovskite quantum dot glass fiber and the polymer in a molten state and then cooling, and the preparation method is simple, high in process reliability and suitable for large-scale production.

Description

Perovskite quantum dot composite film and preparation method thereof
Technical Field
The application relates to the field of luminescent materials, in particular to a perovskite quantum dot composite film and a preparation method thereof.
Background
In the prior art, perovskite quantum dots are generally directly dispersed in a polymer, and then prepared into a quantum dot polymer complex with a predetermined shape for subsequent use. However, the perovskite quantum dots are easily affected by oxygen, water vapor and other factors in the external environment, so that the structure of the perovskite quantum dots is decomposed and damaged, the luminous efficiency is reduced, and the service life is shortened. Under the influence, the conventional light conversion film based on perovskite quantum dots generally has the problems of poor stability, low light emitting efficiency and the like, and cannot meet the requirements of the display and illumination fields on the light emitting stability.
Accordingly, there is a need for improvements in the art.
Disclosure of Invention
In view of the above technical problems, an object of the present application is to provide a perovskite quantum dot composite film with high stability and strong process reliability and a preparation method thereof.
According to an aspect of the present application, there is first disclosed a perovskite quantum dot composite film, comprising:
a polymer;
perovskite quantum dot glass fiber dispersed in the polymer;
the perovskite quantum dot glass fiber comprises a glass matrix and perovskite quantum dots uniformly distributed in the glass matrix.
Furthermore, the diameter of the perovskite quantum dot glass fiber is 50 nm-50 μm.
According to another aspect of the present application, there is also disclosed a method for preparing a perovskite quantum dot composite film, comprising the steps of:
s1, providing a precursor comprising: perovskite quantum dot glass fibers, and polymers;
s2, mixing the precursors at a first temperature at or above the melting point of the polymer, and cooling to obtain the perovskite quantum dot composite film.
Further, the first temperature is 90-310 ℃.
Further, the perovskite quantum dot glass fiber is obtained by mixing raw material components required for synthesizing perovskite quantum dots with raw material components required for synthesizing a glass matrix and subjecting the mixture to a hot melting step and a forming and drawing step.
Furthermore, the diameter of the perovskite quantum dot glass fiber is 50 nm-50 μm.
Further, the polymer includes at least one component, and the first temperature is greater than or equal to the melting point of the component with the highest melting point in the polymer.
Further, the polymer includes at least one of an ethylene-based polymer, a propylene-based polymer, a thiolene polymer, an acrylate polymer, a urethane polymer, a carbonate polymer, an epoxy polymer, and a silicone polymer.
Further, the precursor further comprises a compatibilizing agent.
Further, in the S2, at a first temperature at or above the melting point of the polymer, the precursor is mixed and melted into a fluid, and the perovskite quantum dot composite film is obtained by extrusion and casting.
Has the advantages that:
the perovskite quantum dot composite film has good optical stability, is not easy to be damaged by oxygen, water vapor, heat and other factors in the external environment, and can still keep good stability in a high-temperature high-humidity environment. In addition, the perovskite quantum dot composite film is prepared by mixing the perovskite quantum dot glass fiber and the polymer in a molten state and then cooling, and the preparation method is simple, high in process reliability and suitable for large-scale production.
Detailed Description
The technical solutions in the examples of the present application will be described in detail below with reference to the embodiments of the present application. It should be noted that the described embodiments are only some embodiments of the present application, and not all embodiments.
According to a preferred embodiment of the present application, there is first disclosed a perovskite quantum dot composite film comprising:
a polymer;
perovskite quantum dot glass fiber, disperse in polymer;
the perovskite quantum dot glass fiber comprises a glass matrix and perovskite quantum dots uniformly distributed in the glass matrix.
In a preferred embodiment of the present application, the diameter of the perovskite quantum dot glass fiber is 50nm to 50 μm.
In a specific embodiment, the diameter of the perovskite quantum dot glass fiber is 100nm to 20 μm.
In a preferred embodiment of the present application, the polymer may be at least one of an ethylene-based polymer, a propylene-based polymer, a thiolene polymer, an acrylate polymer, a urethane polymer, a carbonate polymer, an epoxy polymer, and a silicone polymer. However, the exemplary embodiments of the present application are not limited thereto.
In a particular embodiment, the polymer can be polyethylene, polyvinylidene fluoride, polyvinyl butyral, polyvinyl alcohol, polystyrene, polypropylene, polymethyl acrylate, polymethyl methacrylate (plexiglass), polydecamethylene formamide, polyhexamethylene sebacamide, polyethylene terephthalate, glycol-modified polyethylene terephthalate, polyethylene naphthalate, polycarbonate, cellulose acetate butyrate, carnauba wax, polymethylphenyl silicone, polydimethylsiloxane, and the like.
According to the perovskite quantum dot composite membrane, the perovskite quantum dots are firstly embedded in a glass substrate to obtain the perovskite quantum dot glass fibers, then the perovskite quantum dot glass fibers are mixed with polymers, the perovskite quantum dot composite membrane with high stability is obtained through a membrane forming process, the perovskite quantum dot composite membrane is not easily damaged by oxygen, water vapor, heat and other factors in the external environment, and good stability can still be kept under the high-temperature high-humidity environment.
According to a preferred embodiment of the present application, there is also disclosed a method for preparing a perovskite quantum dot composite film, comprising the steps of:
s1, providing a precursor comprising: perovskite quantum dot glass fibers, and polymers;
and S2, mixing the precursors at a first temperature which is at or above the melting point of the polymer, and cooling to obtain the perovskite quantum dot composite film.
Unlike organic phosphorus photo molecules or fluorescent molecules, quantum dots generally have a large specific surface area, resulting in poor stability to light, heat and other environmental factors. In the prior art, the quantum dots are generally avoided from being processed at high temperature, because the optical properties and stability of the quantum dots are poor. In the preparation of a light conversion film based on quantum dots, the quantum dots are directly dispersed in a polymer resin solution and then cured by ultraviolet light or heat. However, the inventors found in experiments that, for the most commonly used polymers such as polyacrylic resin, polyepoxy resin, etc., the quantum dot-based light conversion film prepared in this way still has poor stability, and the water and oxygen protection capability of the polymer to the quantum dots is weak. Particularly, perovskite quantum dots which are sensitive to water and oxygen are very easily affected by oxygen, water vapor and other factors in the external environment, so that the structure of the perovskite quantum dots is decomposed and damaged, the luminous efficiency is reduced, and the service life is shortened.
In the application, the inventor finds that the perovskite quantum dots are firstly embedded in the glass substrate to obtain the perovskite quantum dot glass fibers, then the perovskite quantum dot glass fibers are mixed with the polymer and the perovskite quantum dot composite film is prepared through a film forming process, so that the quantum dots in the perovskite quantum dot composite film can be fully protected and are not easily damaged by oxygen, water vapor, heat and other factors in the external environment, and the stability of the perovskite quantum dots in the prepared perovskite quantum dot composite film is remarkably improved. Compared with the film forming process directly based on the perovskite quantum dots, the film forming process based on the perovskite quantum dot glass fiber is higher in reliability.
In a preferred embodiment of the present application, in the process of preparing the above perovskite quantum dot composite film, a step of irradiating a mixture including perovskite quantum dot glass fibers and a polymer with blue light is further included, so that the resulting perovskite quantum dot composite film has good luminous stability, and the intensity and emission peak position can be kept stable for a long time.
In a preferred embodiment of the present application, the first temperature is 90 to 310 ℃. Particularly, the first temperature is 90-220 ℃, so that the adverse effect on the perovskite quantum dot glass fiber possibly generated when the first temperature is too high can be further avoided.
In a preferred embodiment of the present application, the perovskite quantum dot glass fiber is obtained by mixing raw material components required for synthesizing perovskite quantum dots with raw material components required for synthesizing a glass matrix and subjecting the mixture to a hot melting step and a shape drawing step.
In a specific embodiment, first, raw material components necessary for synthesizing perovskite quantum dots are mixed with raw material components necessary for synthesizing a glass substrate, the glass substrate containing the perovskite quantum dots is prepared by a hot-melt method, and then the glass substrate containing the perovskite quantum dots is subjected to shape drawing to obtain the perovskite quantum dot glass fiber.
In a preferred embodiment of the present application, the raw material components required for the synthesis of perovskite quantum dots comprise a first precursor and a second precursor, wherein the first precursor is formed from Cs+With at least one of a carboxylic acid anion, a carbonic acid anion or a halogen anion, the second precursor consisting of Pb2+Or Sn2+And at least one of carboxylic acid anion, oxygen ion or halogen anion.
In a preferred embodiment of the present application, the first precursor is selected from at least one of cesium carboxylate, cesium carbonate, cesium halide. Specifically, the first precursor is selected from cesium oleate, CsCl, CsBr, CsI, Cs2CO3At least one of (1). However, the exemplary embodiments of the present application are not limited thereto.
In a preferred embodiment of the present application, the second precursor is selected from PbCl2、PbI2、PbBr2、SnCl2、SnI2、SnBr2At least one of PbO and SnO. However, the exemplary embodiments of the present application are not limited thereto.
In a preferred embodiment of the present application, the raw material components required for synthesizing the perovskite quantum dots further comprise an additive, wherein the structural general formula of the additive is MX.
In a specific embodiment, M is a first main group metal element and comprises at least one of Na, K, Rb and Cs, and X is at least one of halide anions. Specifically, the additive is selected from at least one of NaBr, KBr, RbBr and CsBr.
In a preferred embodiment of the present application, the raw material components required for the synthesis of the glass matrix comprise SiO2、B2O3、ZnO、MgO、Al2O3、PbO、SbO2、P2O5、TeO2、GeO2、、Na2O、K2O、Li2O, CaO, SrO, BaO, etc.
In a preferred embodiment of the present application, first, raw material components required for synthesizing perovskite quantum dots are mixed with raw material components required for synthesizing a glass substrate, and through calcination melting, annealing molding and crystallization processes, the glass substrate containing the perovskite quantum dots is obtained.
In a preferred embodiment of the present application, the temperature for melting by calcination is 1000 to 1300 ℃, the temperature for annealing and forming is 350 to 500 ℃, and the temperature for crystallization is 400 to 600 ℃. Specifically, the temperature of calcination melting is 1100-1250 ℃, the temperature of annealing forming is 400-500 ℃, and the temperature of crystallization is 450-600 ℃.
In a specific embodiment, raw material components required for synthesizing perovskite quantum dots and raw material components required for synthesizing a glass substrate are fully mixed and uniformly ground, then the mixture is calcined and melted in a muffle furnace or a lifting furnace at 1100-1250 ℃ for at least 10min, then a calcined liquid is poured on an iron plate for shaping, then the mixture is transferred into the muffle furnace again for annealing at 350-500 ℃ for 1-6 h, and finally the crystallization process is completed at 450-600 ℃, so that the glass substrate containing the perovskite quantum dots is finally obtained.
In a preferred embodiment of the present application, a glass substrate containing perovskite quantum dots is subjected to shape drawing to obtain a perovskite quantum dot glass fiber.
In a specific embodiment, a glass matrix containing perovskite quantum dots is heated to a temperature of wire drawing viscosity and drawn into uniform perovskite quantum dot glass fibers of a desired diameter. Specifically, the temperature of the drawing viscosity is 900-1100 ℃.
In a preferred embodiment of the present application, the diameter of the perovskite quantum dot glass fiber is 50nm to 50 μm. Specifically, the diameter of the perovskite quantum dot glass fiber is 100 nm-20 μm.
In a preferred embodiment of the present application, the polymer comprises at least one component. When the polymer contains a plurality of components, the first temperature is greater than or equal to the melting point of the highest melting component of the polymers, such that all of the polymers are in a molten state at the first temperature.
As used herein, the term "melting point" refers to the highest temperature of the melting range of a polymer. Because polymers are not composed of exactly the same crystals, exactly the same degree of polymerization, and exactly the same polymeric segments, and during the heating and melting process, the amorphous domains of the polymer will preferentially melt, while the crystalline domains will also require a higher melting temperature, the "melting point" is generally representative of the temperature at which the crystalline structure of the crystalline domains of the polymer is destroyed. In this application, the first temperature is higher than the melting point of the polymer, and means the highest temperature higher than the melting range of the polymer.
In a preferred embodiment of the present application, the polymer may include at least one of an ethylene-based polymer, a propylene-based polymer, a thiolene polymer, an acrylate polymer, a urethane polymer, a carbonate polymer, an epoxy polymer, and a silicone polymer. However, the exemplary embodiments of the present application are not limited thereto.
In a particular embodiment, the polymer can be polyethylene, polyvinylidene fluoride, polyvinyl butyral, polyvinyl alcohol, polystyrene, polypropylene, polymethyl acrylate, polymethyl methacrylate (plexiglass), polydecylformamide, polyhexamethylene sebacamide, polyethylene terephthalate, glycol-modified polyethylene terephthalate, polyethylene naphthalate, polycarbonate, cellulose acetate butyrate, carnauba wax, polymethylphenyl silicone, polydimethylsiloxane, and the like.
In order to increase the mixing uniformity of the perovskite quantum dot glass fiber and the polymer and thus prepare the perovskite quantum dot composite membrane with better dispersion performance, in some preferred embodiments of the present application, a compatilizer may be further included in the precursor. Specifically, the compatibilizer is a polymeric compatibilizer, preferably maleic anhydride grafted polypropylene. However, the exemplary embodiments of the present application are not limited thereto.
In a preferred embodiment of the present application, in step S2, precursors including the perovskite quantum dot glass fiber and the polymer are mixed and melted into a fluid at a first temperature at or above the melting point of the polymer, and the perovskite quantum dot composite film is obtained by extrusion and casting.
In a specific embodiment, in step S2, at 90-310 ℃, a precursor mixture including perovskite quantum dot glass fibers and a polymer is first conveyed to an extruder and melted into a fluid, and then the fluid is extruded and combined through a die to form a casting film, so as to obtain the perovskite quantum dot composite film.
The perovskite quantum dot composite film obtained by the preparation method is extremely high in stability, and can still keep good stability and optical performance in a high-temperature and high-humidity environment.
Hereinafter, embodiments of the present invention will be described in more detail with reference to examples. However, they are exemplary embodiments of the present invention, and the present invention is not limited thereto.
Examples
The perovskite quantum dot composite film comprises polypropylene and perovskite quantum dot glass fibers dispersed in the polypropylene;
the perovskite quantum dot glass fiber comprises a glass matrix and CsPbBr uniformly distributed in the glass matrix3The average diameter of the quantum dots and the perovskite quantum dot glass fiber is 5 mu m.
The preparation method of the perovskite quantum dot composite film comprises the following steps:
s1, providing a precursor comprising: perovskite quantum dot glass fibers, and polypropylene;
the preparation method of the perovskite quantum dot glass fiber comprises the following steps:
s1-1, adding cesium oleate and PbBr2、NaBr、SiO2、B2O3ZnO is fully mixed and evenly ground in a horseCalcining and melting at 1200 ℃ for 10min in a muffle furnace, pouring the calcined liquid on an iron plate for shaping, then transferring the calcined liquid into the muffle furnace again for annealing at 450 ℃ for 3h, and finally completing the crystallization process at 500 ℃ to obtain the CsPbBr-containing material3A glass matrix of quantum dots;
s1-2, will contain CsPbBr3The glass substrate of the quantum dot is heated to 1050 ℃ of the drawing viscosity, and is drawn into the perovskite quantum dot glass fiber with the diameter of 5 mu m and uniformity.
S2, conveying the mixture containing the perovskite quantum dot glass fiber and the polypropylene precursor to an extruder at 240 ℃, melting the mixture into fluid, extruding and combining the fluid through a die head to form a casting film, and finally obtaining the perovskite quantum dot composite film.
And (3) testing and characterizing:
under the 365nm ultraviolet excitation light source, the perovskite quantum dot composite membrane is in a transparent green color.
Testing the emission spectrum and the luminous efficiency of the fluorescent spectrophotometer with PR670 multi-diaphragm, and determining the luminous wavelength to be 516nm and the half-peak width to be 23 nm; the luminescence efficiency was measured to be 63% with 446nm as the excitation wavelength.
The composite film is placed in a test box with the humidity of 85% and the temperature of 85 ℃ for a week, and under the same test conditions, the luminous wavelength of the composite film is 516nm, the half-peak width of the composite film is 23nm, and the luminous efficiency of the composite film is 61%.
Comparative example
The perovskite quantum dot/polymer composite fluorescent film comprises an ultraviolet curing adhesive Ergo 8500 and CH dispersed in the ultraviolet curing adhesive Ergo 85003NH3PbBr3And (4) quantum dots.
The preparation method of the perovskite quantum dot/polymer composite fluorescent film comprises the following steps:
s1, mixing CsPbBr3Mixing and uniformly stirring the toluene dispersion liquid of the quantum dots and an ultraviolet curing adhesive Ergo 8500, and then, standing for 30min under a vacuum environment of 0.1torr to remove the solvent to obtain a perovskite quantum dot film-forming glue solution;
and S2, coating the film-forming glue solution of S1 on a glass substrate, and curing by ultraviolet ray irradiation to obtain the perovskite quantum dot/polymer composite fluorescent film.
Irradiating with 365nm ultraviolet excitation light for 5 min.
And (3) testing and characterizing:
under the 365nm ultraviolet excitation light source, the perovskite quantum dot/polymer composite fluorescent film is yellow.
Testing the emission spectrum and the luminous efficiency of the fluorescent spectrophotometer with PR670 multi-diaphragm, and determining that the luminous wavelength is 520nm and the half-peak width is 23 nm; the luminous efficiency was measured to be 52% with 446nm as the excitation wavelength.
The composite film is placed in a test box with the humidity of 85% and the temperature of 85 ℃ for a week, and under the same test conditions, the luminous wavelength of the composite film is 521nm, the half-peak width of the composite film is 24nm, and the luminous efficiency of the composite film is 25%.
As can be seen from the above examples, the perovskite quantum dots are first embedded in a glass matrix to obtain perovskite quantum dot glass fibers, and then the perovskite quantum dot glass fibers are mixed with a polymer and subjected to a film forming process to obtain a perovskite quantum dot composite film. Compared with a comparative example, the perovskite quantum dot composite film can still keep good stability and optical performance under a high-temperature and high-humidity environment, and meets the requirements of market application.
Although the present disclosure has been described and illustrated in greater detail by the inventors, it should be understood that modifications and/or alterations to the above-described embodiments, or equivalent substitutions, will be apparent to those skilled in the art without departing from the spirit of the disclosure, and that no limitations to the present disclosure are intended or should be inferred therefrom.

Claims (10)

1. A perovskite quantum dot composite film, comprising:
a polymer;
perovskite quantum dot glass fiber dispersed in the polymer;
the perovskite quantum dot glass fiber comprises a glass matrix and perovskite quantum dots uniformly distributed in the glass matrix.
2. The perovskite quantum dot composite film according to claim 1, wherein the diameter of the perovskite quantum dot glass fiber is 50nm to 50 μm.
3. A preparation method of a perovskite quantum dot composite film is characterized by comprising the following steps:
s1, providing a precursor comprising: perovskite quantum dot glass fibers, and polymers;
s2, mixing the precursors at a first temperature at or above the melting point of the polymer, and cooling to obtain the perovskite quantum dot composite film.
4. The method for preparing the perovskite quantum dot composite film according to claim 3, wherein the first temperature is 90-310 ℃.
5. The method for producing a perovskite quantum dot composite film according to claim 3, wherein the perovskite quantum dot glass fiber is obtained by mixing raw material components required for synthesizing perovskite quantum dots with raw material components required for synthesizing a glass matrix and subjecting the mixture to a thermal melting step and a shaping and drawing step.
6. The method for preparing the perovskite quantum dot composite film according to any one of claims 3 to 5, wherein the diameter of the perovskite quantum dot glass fiber is 50nm to 50 μm.
7. The method of preparing a perovskite quantum dot composite film as claimed in claim 3, wherein the polymer comprises at least one component, and the first temperature is greater than or equal to a melting point of a component having a highest melting point among the polymers.
8. The method of making the perovskite quantum dot composite film of claim 3, wherein the polymer comprises at least one of an ethylene-based polymer, a propylene-based polymer, a thiol-ene polymer, an acrylate polymer, a urethane polymer, a carbonate polymer, an epoxy polymer, and a silicone polymer.
9. The method of preparing a perovskite quantum dot composite film as claimed in claim 3, wherein the precursor further comprises a compatibilizing agent.
10. The method for producing the perovskite quantum dot composite film according to claim 3, wherein the precursor is mixed and melted into a fluid at a first temperature at or above the melting point of the polymer in S2, and the perovskite quantum dot composite film is obtained by extrusion and casting.
CN201910921174.4A 2019-09-27 2019-09-27 Perovskite quantum dot composite film and preparation method thereof Withdrawn CN110802782A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111848995A (en) * 2020-07-20 2020-10-30 宁波东旭成新材料科技有限公司 Manufacturing method of quantum dot film with high water vapor isolation
CN112852158A (en) * 2021-01-04 2021-05-28 福建师范大学 Perovskite quantum dot glass film and preparation method and application thereof
CN114621474A (en) * 2020-12-14 2022-06-14 北京理工大学 Perovskite quantum dot polarized light-emitting film and preparation method and application thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111848995A (en) * 2020-07-20 2020-10-30 宁波东旭成新材料科技有限公司 Manufacturing method of quantum dot film with high water vapor isolation
CN114621474A (en) * 2020-12-14 2022-06-14 北京理工大学 Perovskite quantum dot polarized light-emitting film and preparation method and application thereof
CN114621474B (en) * 2020-12-14 2023-06-06 北京理工大学 Perovskite quantum dot polarized light-emitting film and preparation method and application thereof
CN112852158A (en) * 2021-01-04 2021-05-28 福建师范大学 Perovskite quantum dot glass film and preparation method and application thereof

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