Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing flexible luminescent gel by inducing perovskite crystallization through acrylic acid

A technology of acrylic acid and perovskite, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of complicated perovskite nanocrystal process and process limitations, and achieve the effects of high repeatability, simple process and environmental protection of solvents.

Active Publication Date: 2022-04-12
NORTHWESTERN POLYTECHNICAL UNIV
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a method for acrylic acid-induced perovskite crystallization to prepare flexible luminescent gels, so as to solve the complicated process in the preparation process of perovskite nanocrystals and the application in subsequent devices. Technical issues in process limitations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing flexible luminescent gel by inducing perovskite crystallization through acrylic acid
  • Method for preparing flexible luminescent gel by inducing perovskite crystallization through acrylic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of method that acrylic acid induces perovskite crystallization to prepare flexible light-emitting gel, comprises the following steps:

[0035] Step 1: Mix 93.5mg of methylammonium bromide (MABr) and 306.5mg of lead bromide (PbBr 2 ) was dissolved in 1ml methylammonium acetic acid (MAAc) solvent, heated to 60° C. and stirred for 15 hours to obtain a perovskite precursor solution;

[0036] 1.5g of hydroxyethyl acrylate (HEA), 0.1g of diphenyl-(2,4,6-trimethylbenzoyl)phosphine (TPO) and 0.1g of N,N'-methylenebisacrylamide (BIS) mixed to obtain a photocurable solution;

[0037] Mix the perovskite precursor solution and the photocuring solution according to the volume ratio of 1:2, and stir evenly to obtain a mixed solution;

[0038] Step 2: The mixed solution is injected into a custom shaped Teflon mold. Take a rectangular mold groove as an example, with a length of 2cm, a width of 1cm, and a depth of 1mm. Take 200μl of the mixed solution and spread it evenly. Pl...

Embodiment 2

[0041] A kind of method that acrylic acid induces perovskite crystallization to prepare flexible light-emitting gel, comprises the following steps:

[0042] Step 1: Mix 37mg methylammonium bromide (MABr) and 122mg lead bromide (PbBr 2 ) was dissolved in 0.5ml methylammonium acetic acid (MAAc) solvent, heated to 40°C and stirred for 24 hours to obtain a perovskite precursor solution;

[0043] 3 g of hydroxyethyl acrylate (HEA), 0.2 g of diphenyl-(2,4,6-trimethylbenzoyl) phosphine (TPO) and 0.2 g of N, N'-methylenebisacrylamide (BIS ) after mixing to obtain a photocurable solution;

[0044] Mix the perovskite precursor solution and the photocuring solution according to the volume ratio of 2:3, and stir evenly to obtain a mixed solution;

[0045] Step 2: The mixed solution is injected into a custom shaped Teflon mold. Take a rectangular mold groove as an example, with a length of 2cm, a width of 1cm, and a depth of 1mm. Take 200μl of the mixed solution and spread it evenly. P...

Embodiment 3

[0048] A kind of method that acrylic acid induces perovskite crystallization to prepare flexible light-emitting gel, comprises the following steps:

[0049] Step 1: Mix 69mg of methylammonium bromide (MABr) and 226mg of lead bromide (PbBr 2 ) was dissolved in 0.5ml methylammonium acetic acid (MAAc) solvent, heated to 75°C and stirred for 10h to obtain a perovskite precursor solution;

[0050] 1.2g of hydroxyethyl acrylate (HEA), 0.08g of diphenyl-(2,4,6-trimethylbenzoyl)phosphine (TPO) and 0.08g of N,N'-methylenebisacrylamide (BIS) mixed to obtain a photocurable solution;

[0051] Mix the perovskite precursor solution and the photocuring solution according to a volume ratio of 1:3, and stir evenly to obtain a mixed solution;

[0052] Step 2: The mixed solution is injected into a custom shaped Teflon mold. Take a rectangular mold groove as an example, with a length of 2cm, a width of 1cm, and a depth of 1mm. Take 200μl of the mixed solution and spread it evenly. Place it in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention mainly relates to a method for preparing flexible luminescent gel by inducing perovskite crystallization through acrylic acid, belongs to the technical field of perovskite nanocrystal preparation, and solves the problems of complicated process in the perovskite nanocrystal preparation process and process limitation in subsequent device application. According to the invention, the perovskite crystal grains with uniform size can be rapidly prepared, the compounding with a flexible substrate material can be realized, and finally the formable perovskite flexible luminescent gel can be obtained. The implementation process of the invention mainly comprises three aspects: preparing a mixed solution of a perovskite precursor solution and a photocuring solution; carrying out photocuring molding on the composite gel; and inducing the MAPbBr3 perovskite to crystallize rapidly by using acrylic acid.

Description

technical field [0001] The invention belongs to the technical field of perovskite nanocrystal preparation, and in particular relates to a method for acrylic acid-induced perovskite crystallization to prepare flexible luminescent gel. Background technique [0002] Due to the excellent optical properties such as bandgap tunability, long carrier lifetime, and high photoluminescence quantum yield, metal halide perovskites have broad development prospects in optoelectronic research fields such as solar cells, transistors, and X-ray detectors. . Compared with thin film-based bulk materials, perovskite (MAPbBr 3 ) nanocrystals have stronger photoemission intensity, and their quantum size effect shows a wider range of light absorption and emission spectra. Traditional nanocrystalline materials are synthesized by ligand-assisted reprecipitation or thermal injection. The preparation process requires an oxygen-free, moisture-free, high-temperature environment, which requires complex ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/06C08K5/00C08F220/20
CPCY02E10/549
Inventor 宋霖王豆蓉陈永华
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com