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

Prepartion method of ternary system quantum dots containing Cd*Zn*Se

A ternary system and quantum dot technology, applied in chemical instruments and methods, non-metal elements, nanostructure manufacturing, etc., can solve the problems of high price, high temperature, high toxicity, etc., and achieve easy large-scale production and difficult production The effect of the accident

Inactive Publication Date: 2009-11-25
中国医药城泰州纳米生命医学研究院
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method uses diethylzinc, TOPO and ODA (octadecylamine), which are expensive, highly toxic and inflammable and explosive in the air, as reaction raw materials, and the reaction conditions require anhydrous and oxygen-free, high temperature, which is not conducive to Industrial production

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
  • Prepartion method of ternary system quantum dots containing Cd*Zn*Se
  • Prepartion method of ternary system quantum dots containing Cd*Zn*Se

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] according to figure 1 , step one; prepare Cd precursor solution: 0.125gCd(MA) 2 (cadmium myristate), 10mL toluene and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Cd(MA) 2 (cadmium myristate) was dissolved in toluene and oleic acid, and then cooled to 60°C for 20 minutes to form a transparent solution; step 2, preparing Zn precursor solution: 0.046gZn(MA) 2 (zinc myristate), 10mL toluene and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Zn(MA) 2 (Zinc myristate) was dissolved in toluene and oleic acid, and then cooled to 60°C for 20 minutes to form a transparent solution; step 3, preparation of Se precursor solution: 0.048g Se powder (0.6mmol) was dissolved in 0.963g trioctyl In base phosphine, vortex at room temperature until completely dissolved, dilute with 40mL toluene, and store in a sealed container; Step 4, Cd x Zn 1-xPreparation of Se ternary system quantum dots: add the above Cd precursor soluti...

Embodiment 2

[0016] according to figure 2 , step 1, prepare Cd precursor solution: 0.106gCd(MA) 2 (cadmium myristate), 10mL toluene and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Cd(MA) 2 (cadmium myristate) was dissolved in toluene and oleic acid, and then cooled to 60 ° C for 20 minutes to form a transparent solution; step 2, the preparation of Zn precursor solution: 0.068gZn (MA) 2 (zinc myristate), 10mL toluene and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Zn(MA) 2 (Zinc myristate) was dissolved in toluene and oleic acid, then cooled to 60°C and kept for 20 minutes to form a transparent solution; Step 3, prepare TOP-Se solution: 0.048g Se powder (0.6mmol) was dissolved in 0.963g trioctyl Phosphine, use a vortex shaker until it is completely dissolved, dilute with 40mL, and store in a sealed seal; Step 4, Cd x Zn 1-x Preparation of Se ternary system quantum dots: add the above Cd precursor solution, Zn precursor s...

Embodiment 3

[0018] Step 1, prepare Cd precursor solution: 0.125gCd(MA) 2 (cadmium myristate), 10mL octadecene (ODE) and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Cd(MA) 2 (cadmium myristate) was dissolved in octadecene (ODE) and oleic acid, and then cooled to 60 ° C for 20 minutes to form a transparent solution; step 2, prepare Zn precursor solution: 0.046gZn (MA) 2 (zinc myristate), 10mL octadecene (ODE) and 0.50mL oleic acid were added to a three-necked flask, heated to 80°C to make Zn(MA) 2 (Zinc myristate) was dissolved in octadecene (ODE) and oleic acid, then cooled to 60°C and kept for 20 minutes to form a transparent solution; Step 3, prepare TOP-Se solution: 0.048g Se powder (0.6mmol) was dissolved in In 0.963g trioctylphosphine, use a vortex shaker until completely dissolved, dilute with 40mL octadecene (ODE), and keep in a sealed container; Step 4, Cd x Zn 1-x Preparation of Se ternary system quantum dots: add the above Cd precursor solution...

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 discloses a prepartion method of ternary system quantum dots containing Cd[x]Zn[1-x]Se, first, adding Cd source into organic coating agent and so-solvent, heating to dissolve the Cd source into the organic coating agent and so-solvent, and preserving heat to form transparent Cd precursor solution; second, adding Zn source into the organic coating agent and so-solvent, heating to dissolve the Zn source into the organic coating agent and so-solvent, and preserving heat to form transparent Zn precursor solution; third, adding Se powder into trioctylphosphine, ultrasonic dispersion at room temperature to dissolve the Se powder into the trioctylphosphine, and then diluting by the so-solvent to get Se precursor solution, then sealing and storing the Se precursor solution; fourth, mixing the Cd precursor solution, Zn precursor solution and Se precursor solution and the organic coating agent in properticn, using inert gas to remove air, sealing and reacting under protection of inert gas, cooling to room temperature to obtain the ternary system quantum dots containing Cd[x]Zn[1-x]Se.

Description

technical field [0001] The present invention relates to a kind of Cd x Zn 1-x The invention discloses a method for preparing Se ternary quantum dots, belonging to the fields of nanotechnology, surface chemistry, bioanalytical chemistry and the like. Background technique [0002] Quantum Dots (Quantum Dots, QDs) usually refer to semiconductor nanocrystals with a particle size smaller than or close to the exciton Bohr radius. Due to quantum confinement, size effects and surface effects, quantum dots have many unique fluorescent properties such as: emission wavelength Compared with organic fluorescent dyes, it also has the characteristics of strong fluorescence intensity, high sensitivity and slow photobleaching rate. Therefore, fluorescent quantum dots are used in bioluminescence labeling, biological Sensors, light-emitting diodes (LEDs) and other fields have broad application prospects. By adjusting the particle size of CdSe quantum dots, its emission wavelength can cover ...

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
IPC IPC(8): C01B19/00C09K11/88B82B3/00
Inventor 黄金麟祝文明肖海蓉
Owner 中国医药城泰州纳米生命医学研究院
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