CN111875895A - Preparation method of perovskite quantum dot film - Google Patents
Preparation method of perovskite quantum dot film Download PDFInfo
- Publication number
- CN111875895A CN111875895A CN202010698540.7A CN202010698540A CN111875895A CN 111875895 A CN111875895 A CN 111875895A CN 202010698540 A CN202010698540 A CN 202010698540A CN 111875895 A CN111875895 A CN 111875895A
- Authority
- CN
- China
- Prior art keywords
- quantum dot
- polymer
- perovskite quantum
- stock solution
- perovskite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002096 quantum dot Substances 0.000 title claims abstract description 128
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 76
- 239000011550 stock solution Substances 0.000 claims abstract description 52
- 239000011259 mixed solution Substances 0.000 claims abstract description 26
- 239000003960 organic solvent Substances 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000001291 vacuum drying Methods 0.000 claims abstract description 9
- 239000002033 PVDF binder Substances 0.000 claims abstract description 6
- 239000004793 Polystyrene Substances 0.000 claims abstract description 6
- 229920002223 polystyrene Polymers 0.000 claims abstract description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 6
- 239000010408 film Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 20
- 229910001507 metal halide Inorganic materials 0.000 claims description 10
- 150000005309 metal halides Chemical class 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 8
- 238000007765 extrusion coating Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000004528 spin coating Methods 0.000 claims description 8
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims description 6
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 claims description 6
- JRLPEMVDPFPYPJ-UHFFFAOYSA-N 1-ethyl-4-methylbenzene Chemical compound CCC1=CC=C(C)C=C1 JRLPEMVDPFPYPJ-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 4
- 230000005693 optoelectronics Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000006798 recombination Effects 0.000 abstract description 2
- 238000005215 recombination Methods 0.000 abstract description 2
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/74—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth
- C09K11/75—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony
- C09K11/755—Halogenides
- C09K11/756—Halogenides with alkali or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
Abstract
A preparation method of a perovskite quantum dot film comprises the following steps: (1) providing perovskite quantum dots and a polymer, wherein the polymer is polystyrene or polyvinylidene fluoride; (2) mixing the perovskite quantum dots and the polymer with an organic solvent respectively to prepare a quantum dot stock solution and a polymer stock solution; (3) uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution; (4) preparing the mixed solution into a film; (5) after vacuum drying, cooling in air to obtain the quantum dot film. The addition of the polymer obviously reduces the surface roughness of the quantum dot film, and the smoother surface reduces the consumption of incident light at the interface of air and the film. While the blending of the polymer with the perovskite ions also facilitates non-radiative energy transfer (foster type) from the polymer to the perovskite ions. The foster energy transfer is an important factor in promoting electron-hole recombination and thus improving the performance of optoelectronic devices.
Description
Technical Field
The invention relates to a preparation method of a perovskite quantum dot film.
Background
Quantum dots are composed of a finite number of atoms, all three dimensions being on the order of nanometers. The quantum dots are generally spherical or quasi-spherical nanoparticles with stable diameters of 2-20nm, are aggregates of atoms and molecules on a nanometer scale, and can be composed of one semiconductor material, such as IIB.VIA group elements or IIIA.VA group elements, or two or more semiconductor materials. Quantum dots can be largely classified into three categories: cd-type quantum dots (CdSe, CdTe, PbS), In-type quantum dots (InP, CuInS)2) And perovskite quantum dots (CsPbX)3,CH3NH3PbX3）。
The perovskite quantum dots are quantum dots with perovskite structures in quantum dots, and have the advantages of simpler synthesis (no core-shell structure), room-temperature large-batch solution synthesis, low toxicity, strong defect tolerance capability and the like. Compared with the classic cadmium selenide quantum dot material, the perovskite quantum dot has narrower half-peak width (15-25 nm), extremely high fluorescence quantum efficiency (90%) and wider color gamut (150% NTSC), so the perovskite quantum dot has important application prospect in the field of quantum dot display, and is a novel quantum dot material with growth potential.
Despite the unique advantages of perovskite quantum dots, poor stability of perovskite quantum dots has been one of the important factors limiting practical applications thereof, and is one of the most difficult problems to solve at present. Therefore, in order to improve the stability of the perovskite quantum dots and further improve the optical properties thereof, research in this field is aimed at limiting the diffusion length of excitons, reducing the possibility of dissociation of excitons into carriers, and enhancing the uniformity and flatness of the perovskite light-emitting layer.
Disclosure of Invention
In order to improve the stability of the perovskite quantum dots, a preparation method of a quantum dot film consisting of the perovskite quantum dots and a polymer is provided.
The technical scheme for solving the technical problem is as follows: a preparation method of a perovskite quantum dot film comprises the following steps:
(1) providing perovskite quantum dots and a polymer, wherein the polymer is polystyrene or polyvinylidene fluoride;
(2) mixing the perovskite quantum dots and the polymer with an organic solvent respectively to prepare a quantum dot stock solution and a polymer stock solution;
(3) uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution;
(4) preparing the mixed solution into a film;
(5) after vacuum drying, cooling in air to obtain the quantum dot film.
Preferably, the perovskite quantum dots are metal halide perovskite quantum dots.
Preferably, the metal halide perovskite quantum dot is CsSbX3Wherein X is Br or I or Cl.
Preferably, the concentration of the quantum dots in the quantum dot stock solution is 5 mg/ml-25 mg/m, and the concentration of the polymer in the polymer stock solution is 20 mg/ml-40 mg/ml.
Preferably, the organic solvent in step (2) is an aromatic hydrocarbon solvent.
Preferably, the organic solvent in step (2) is benzene, or toluene, or xylene, or cumene, or n-propylbenzene, or p-methylethylbenzene.
Preferably, the weight ratio of the perovskite quantum dots to the polymer is 1: 2-10.
Preferably, in the step (4), the mixed solution is formed into a thin film by using an extrusion or spin coating method.
The invention has the beneficial effects that: the addition of the polymer obviously reduces the surface roughness of the quantum dot film, improves the surface, and reduces the consumption of incident light at the interface of air and the film due to the smoother surface. While the blending of the polymer with the perovskite ions also facilitates non-radiative energy transfer (foster type) from the polymer to the perovskite ions. The foster energy transfer is an important factor in promoting electron-hole recombination and thus improving the performance of optoelectronic devices.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
In a first embodiment, a method for preparing a perovskite quantum dot film includes the following steps:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbBr3The polymer is polystyrene.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 15 mg/ml, the concentration of the polymer in the polymer stock solution is 30mg/ml, the organic solvent is an aromatic hydrocarbon solvent, and benzene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 5.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
In a second embodiment, a method for preparing a perovskite quantum dot film includes the steps of:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbI3The polymer is polyvinylidene fluoride.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 5mg/ml, the concentration of the polymer in the polymer stock solution is 25mg/ml, the organic solvent is an aromatic hydrocarbon solvent, and toluene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 10.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
In a third embodiment, a method for preparing a perovskite quantum dot film includes the following steps:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbCl3The polymer is polystyrene.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 10mg/ml, the concentration of the polymer in the polymer stock solution is 40mg/ml, the organic solvent is an aromatic hydrocarbon solvent, and xylene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 2.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
In a fourth embodiment, a method for preparing a perovskite quantum dot film includes the steps of:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbBr3The polymer is polyvinylidene fluoride.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 25mg/ml, the concentration of the polymer in the polymer stock solution is 20mg/ml, the organic solvent is an aromatic hydrocarbon solvent, and cumene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 8.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
In an embodiment, a method for preparing a perovskite quantum dot film includes the following steps:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbI3The polymer is polystyrene.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 20mg/ml, the concentration of the polymer in the polymer stock solution is 35mg/ml, the organic solvent is an aromatic hydrocarbon solvent, and n-propylbenzene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 3.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
Embodiment six, a preparation method of a perovskite quantum dot film, the preparation method comprising the steps of:
(1) providing a perovskite quantum dot and a polymer, wherein the perovskite quantum dot is a metal halide perovskite quantum dot CsSbCl3The polymer is polyvinylidene fluoride.
(2) The perovskite quantum dots and the polymer are respectively mixed with an organic solvent to prepare a quantum dot stock solution and a polymer stock solution, the concentration of the quantum dots in the quantum dot stock solution is 22mg/ml, the concentration of the polymer in the polymer stock solution is 33mg/ml, and the organic solvent is an aromatic hydrocarbon solvent, wherein p-methyl ethyl benzene is adopted in the embodiment.
(3) And uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution, wherein the weight ratio of the perovskite quantum dot to the polymer in the mixed solution is 1: 7.
(4) And preparing the mixed solution into a film by adopting an extrusion or spin coating method.
(5) After vacuum drying, cooling in air to obtain the quantum dot film.
Claims (8)
1. A preparation method of a perovskite quantum dot film is characterized by comprising the following steps:
(1) providing perovskite quantum dots and a polymer, wherein the polymer is polystyrene or polyvinylidene fluoride;
(2) mixing the perovskite quantum dots and the polymer with an organic solvent respectively to prepare a quantum dot stock solution and a polymer stock solution;
(3) uniformly mixing the quantum dot stock solution and the polymer stock solution to form a mixed solution;
(4) preparing the mixed solution into a film;
(5) after vacuum drying, cooling in air to obtain the quantum dot film.
2. The method of preparing a perovskite quantum dot film as claimed in claim 1, wherein: the perovskite quantum dots are metal halide perovskite quantum dots.
3. The method of preparing a perovskite quantum dot film as claimed in claim 2, characterized in that: the metal halide perovskite quantum dot is CsSbX3Wherein X is Br or I or Cl.
4. The method of preparing a perovskite quantum dot film as claimed in claim 1, wherein: the concentration of the quantum dots in the quantum dot stock solution is 5 mg/ml-25 mg/m, and the concentration of the polymer in the polymer stock solution is 20 mg/ml-40 mg/ml.
5. The method of preparing a perovskite quantum dot film as claimed in claim 1, wherein: the organic solvent in the step (2) is an aromatic hydrocarbon solvent.
6. The method of preparing a perovskite quantum dot film as claimed in claim 5, wherein: the organic solvent in the step (2) is benzene, toluene, xylene, cumene, n-propylbenzene or p-methylethylbenzene.
7. The method of preparing a perovskite quantum dot film as claimed in claim 4, wherein: the weight ratio of the perovskite quantum dots to the polymer is 1: 2-10.
8. The method of producing a perovskite quantum dot film as claimed in any one of claims 1 to 7, wherein: in the step (4), the mixed solution is formed into a thin film by using an extrusion or spin coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698540.7A CN111875895A (en) | 2020-07-20 | 2020-07-20 | Preparation method of perovskite quantum dot film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698540.7A CN111875895A (en) | 2020-07-20 | 2020-07-20 | Preparation method of perovskite quantum dot film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111875895A true CN111875895A (en) | 2020-11-03 |
Family
ID=73155507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698540.7A Pending CN111875895A (en) | 2020-07-20 | 2020-07-20 | Preparation method of perovskite quantum dot film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111875895A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621759A (en) * | 2022-01-31 | 2022-06-14 | 福建师范大学 | Green light regulation and control of perovskite quantum dot film, and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861958A (en) * | 2015-05-14 | 2015-08-26 | 北京理工大学 | Perovskite/polymer composite luminescent material and preparation method thereof |
| CN107619485A (en) * | 2017-09-08 | 2018-01-23 | 福建师范大学 | Inorganic perovskite quantum dot syndiotactic polytyrene laminated film and preparation method thereof |
| CN107955199A (en) * | 2017-11-09 | 2018-04-24 | 合肥乐凯科技产业有限公司 | Perovskite quantum dot film, quantum dot diffusion composite membrane and preparation method thereof |
| CN108977199A (en) * | 2018-08-06 | 2018-12-11 | 东北师范大学 | Perovskite quantum dots-polymer composite membrane and preparation method thereof |
| CN110551304A (en) * | 2019-09-20 | 2019-12-10 | 郑州大学 | Cesium-lead halogen inorganic perovskite quantum dot/transparent polymer composite film |
-
2020
- 2020-07-20 CN CN202010698540.7A patent/CN111875895A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104861958A (en) * | 2015-05-14 | 2015-08-26 | 北京理工大学 | Perovskite/polymer composite luminescent material and preparation method thereof |
| CN107619485A (en) * | 2017-09-08 | 2018-01-23 | 福建师范大学 | Inorganic perovskite quantum dot syndiotactic polytyrene laminated film and preparation method thereof |
| CN107955199A (en) * | 2017-11-09 | 2018-04-24 | 合肥乐凯科技产业有限公司 | Perovskite quantum dot film, quantum dot diffusion composite membrane and preparation method thereof |
| CN108977199A (en) * | 2018-08-06 | 2018-12-11 | 东北师范大学 | Perovskite quantum dots-polymer composite membrane and preparation method thereof |
| CN110551304A (en) * | 2019-09-20 | 2019-12-10 | 郑州大学 | Cesium-lead halogen inorganic perovskite quantum dot/transparent polymer composite film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621759A (en) * | 2022-01-31 | 2022-06-14 | 福建师范大学 | Green light regulation and control of perovskite quantum dot film, and preparation method and application thereof |
| CN114621759B (en) * | 2022-01-31 | 2023-09-22 | 福建师范大学 | Perovskite quantum dot film green light regulation and control and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108258133B (en) | Perovskite light emitting diode and preparation method thereof | |
| KR102134481B1 (en) | Perovskite photoelectric device, manufacturing method and perovskite material | |
| Wang et al. | Enhanced white-light emission from multiple fluorophores encapsulated in a single layer of diblock copolymer micelles | |
| US20180006257A1 (en) | Carbon dot multicolor phosphors | |
| Ji et al. | Over 800% efficiency enhancement of all-inorganic quantum-dot light emitting diodes with an ultrathin alumina passivating layer | |
| CN110707219B (en) | Organic-inorganic perovskite quantum dot film and preparation method thereof | |
| CN111875895A (en) | Preparation method of perovskite quantum dot film | |
| WO2021136325A9 (en) | Zinc oxide nanoparticle and modification method therefor, and quantum dot light emitting diode and preparation method therefor | |
| Wen et al. | Ultrapure green light-emitting diodes based on CdSe/CdS core/crown nanoplatelets | |
| Qiao et al. | Efficient photoluminescence enhancement and tunable photocarrier transfer in vertical 2D organic–inorganic heterostructure by energy funneling | |
| Yao et al. | pn heterojunctions composed of two-dimensional molecular crystals for high-performance ambipolar organic field-effect transistors | |
| CN109326743B (en) | Preparation method of light-emitting diode based on nano tungsten bronze | |
| CN106784391A (en) | Quantum dot light emitting device and preparation method thereof, liquid crystal display device | |
| CN114039002B (en) | Electron transport ink, electron transport film, electroluminescent diode, and display device | |
| CN211348932U (en) | Quantum dot optical sheet with wide color gamut | |
| US20220089939A1 (en) | Barium titanium composite, method of preparing the same, and display panel | |
| US11312899B2 (en) | Composite polymer/perovskite quantum dots luminescent material | |
| Mustapha et al. | Optical properties of solution-processed MEH-PPV thin films for optoelectronic applications | |
| Idris et al. | organic solar cell: An overview on performance and fabrication techniques | |
| CN114672314A (en) | Core-shell structure quantum dot, preparation method thereof, quantum dot light-emitting film and diode | |
| CN114695696A (en) | Composite electron transport material, preparation method thereof and light emitting diode | |
| WO2021203609A1 (en) | Tin oxide quantum dot material and preparation method therefor, and photoelectric device | |
| Liu et al. | Highly Stable Functional Sol–Gel CdTe–SiO2 Films with Tunable Emission | |
| Coe-Sullivan | Hybrid organic/quantum dot thin film structures and devices | |
| WO2023088088A1 (en) | Nanoparticle, preparation method therefor, and light-emitting diode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201103 |
|
| RJ01 | Rejection of invention patent application after publication |