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

Cs4PbBr6 zero-dimensional perovskite nano material as well as preparation method and application thereof

A nanomaterial, perovskite technology, applied in luminescent materials, chemical instruments and methods, electrical components, etc., can solve problems such as difficulty in discovering luminescent properties, and achieve easy control of synthesis conditions, good uniformity and repeatability, and repeatability. Good results

Active Publication Date: 2020-09-29
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, structural locality also makes Cs 4 PbBr 6 The band gap of zero-dimensional perovskite nanomaterials cannot be compared with that of three-dimensional CsPbX 3 Perovskite nanomaterials can be effectively regulated by size or anion exchange, making it difficult to discover the excellent luminescent properties of the material

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
  • Cs4PbBr6 zero-dimensional perovskite nano material as well as preparation method and application thereof
  • Cs4PbBr6 zero-dimensional perovskite nano material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of blue-emitting Cs 4 PbBr 6 Zero-dimensional perovskite nanomaterials

[0038] (1) Weigh 0.4g of cesium carbonate, 1.5ml of oleic acid, and 15ml of octadecene at room temperature, and add them to a 100ml two-necked flask. 2 After stirring for 20 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the cesium carbonate is completely dissolved, then raise the temperature to 150°C and keep it warm for 10 minutes, then lower the temperature. 2 Storage under the atmosphere, was cloudy.

[0039] (2) Weigh 0.0138g of lead bromide, 0.0418g of tin bromide, 5ml of octadecene, 0.5ml of oleic acid, and 0.5ml of oleylamine at room temperature, and add them to a 50ml two-necked flask. 2 After stirring for 10 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the solid is completely dissolved, then raise the temperature to the reaction temperature of 150°C, inject 0.4ml of the solution prepared in step (1) at about 120°C, and...

Embodiment 2

[0045] Preparation of blue-emitting Cs 4 PbBr 6 Zero-dimensional perovskite nanomaterials

[0046] (1) Weigh 0.4g of cesium carbonate, 1.5ml of oleic acid, and 15ml of octadecene at room temperature, and add them to a 100ml two-necked flask. 2 After stirring for 20 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the cesium carbonate is completely dissolved, then raise the temperature to 150°C and keep it warm for 10 minutes, then lower the temperature. 2 Storage under the atmosphere, was cloudy.

[0047] (2) Weigh 0.0138g of lead bromide, 0.0418g of tin bromide, 5ml of octadecene, 0.5ml of oleic acid, and 0.5ml of oleylamine at room temperature, and add them to a 50ml two-necked flask. 2 After stirring for 10 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the solid is completely dissolved, then raise the temperature to the reaction temperature of 170°C, inject 0.4ml of the solution prepared in step (1) at about 120°C, and...

Embodiment 3

[0052] Preparation of blue-emitting Cs 4 PbBr 6 Zero-dimensional perovskite nanomaterials

[0053] (1) Weigh 0.4g of cesium carbonate, 1.5ml of oleic acid, and 15ml of octadecene at room temperature, and add them to a 100ml two-necked flask. 2 After stirring for 20 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the cesium carbonate is completely dissolved, then raise the temperature to 150°C and keep it warm for 10 minutes, then lower the temperature. 2 Storage under the atmosphere, was cloudy.

[0054] (2) Weigh 0.0138g of lead bromide, 0.0418g of tin bromide, 5ml of octadecene, 0.5ml of oleic acid, and 0.5ml of oleylamine at room temperature, and add them to a 50ml two-necked flask. 2 After stirring for 10 minutes, raise the temperature to 120°C and keep it warm for 1 hour until the solid is completely dissolved, then raise the temperature to the reaction temperature of 200°C, inject 0.4ml of the solution prepared in step (1) at about 120°C, and...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a Cs4PbBr6 zero-dimensional perovskite nano material as well as a preparation method and application thereof. A thermal injection synthesis method is adopted; by changing the reaction precursor conditions, the Cs4PbBr6 zero-dimensional perovskite nano material is doped with tin, the band gap is effectively regulated and controlled; finally, a tin-doped Cs4PbBr6 zero-dimensional perovskite nano luminescent material, which is mono-dispersed, has uniform morphology, and can obviously emit blue light, is obtained; and the luminescent material is a trigonal-phase Cs4PbBr6 nano material. The synthesis conditions of the preparation method are easy to control, and the prepared blue light emitting Cs4PbBr6 zero-dimensional perovskite nano particles are good in dispersity, uniformity, repeatability and light-emitting performance. The blue light emitting Cs4PbBr6 zero-dimensional perovskite nano material is an excellent nano luminescent material, and has huge development potential in the fields of light-emitting display, photo-electronic devices and the like.

Description

technical field [0001] The invention belongs to the technical field of nano-luminescent materials, in particular to a Cs 4 PbBr 6 Zero-dimensional perovskite nanomaterials and their preparation methods and applications. Background technique [0002] All-inorganic perovskite nanomaterials have excellent optical properties such as high fluorescence quantum yield, adjustable emission wavelength, and narrow emission half-maximum width, showing broad application prospects in light-emitting diodes, solar cells, photodetectors, and lasers. It has developed vigorously in recent years. According to its structure lead halide octahedral ([PbX 6 ] 4- , X=Cl, Br, I) Different connection modes can derive a variety of perovskite-related phases. At present, the most studied three-dimensional all-inorganic perovskite nanomaterials (CsPbX 3 , X=Cl, Br, I), which has the common [PbX 6 ] 4- Octahedral interconnected perovskite structure, there is also a zero-dimensional perovskite nanom...

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): C09K11/66H01L33/26
CPCC09K11/665H01L33/26
Inventor 邹胜晗于立成刘永升洪茂椿
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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