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

Nano silver copper particle dispersant silica dioxide optical thin film and preparation method thereof

A silicon dioxide and optical thin film technology, applied in the composite field of nano metal particles and inorganic non-metallic materials, can solve the problems of large difference in deposition rate, high cost, unproven and other problems, achieve good nonlinear optical properties and short preparation period , the effect of saving energy

Inactive Publication Date: 2007-10-31
UNIV OF SCI & TECH BEIJING
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sputtering method has the following problems: during sputtering, the deposition rate difference between metal particles and oxides and between metal particles is large, it is difficult to control the stoichiometric ratio of metal and oxide components in the film, and various metals When the particles are dispersed at the same time, multi-target sputtering is required, and the cost is high
However, there are still few studies on the successful dispersion of multiple noble metals in oxide films at the same time. The relevant literature found is: Shi et al. prepared Ag-Au composite metal doped films by sol-gel method, and used transmission electron microscope and EDS spectrum It is concluded that the sample contains Ag and Au elements, but it cannot be confirmed whether it is a single substance or an alloy. Test Ag / SiO 2 , Au / SiO 2 with Ag-Au / SiO 2 The optical absorption spectrum found that the absorption peaks appeared at 400nm, 524nm, and 492nm respectively, and Ag-Au / SiO 2 Only a single absorption peak appears at 492nm in the thin film, indicating that Ag and Au exist in the form of alloy [Huazhong Shi, Lide Zhang, and Weiping Cai: JOURNAL OF APPLIED PHYSICS, 3[87](2000)1572-1574]
At present, there is no related AgCu nanoparticles dispersed in SiO 2 Report on Matrix Optical Thin Films

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
  • Nano silver copper particle dispersant silica dioxide optical thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Mix 2.8ml TEOS and 6.2ml H 2 O dissolved in 124.3ml CH 3 OCH 2 CH 2 OH, stirred in an ultrasonic cleaner for 20 minutes, after adding 20 drops of concentrated nitric acid, magnetically stirred for 1 hour to carry out hydrolysis and polycondensation, and then added 0.1888g Cu(NO 3 ) 2 ·3H 2 O, stirred for 2.5 hours to obtain Cu / SiO 2 solution, followed by the addition of 0.2361gAgNO 3 , and stirred again for 4 hours to obtain Ag x Cu y / (SiO 2 ) z Precursor solution; when the film is uniform, drop the solution onto the substrate, first run at 200rpm for 20 seconds, and then run at 5000rpm for 10 seconds. Every time the glue is evenly glued, the film is thermally decomposed at 100°C for 2 seconds. After 200 times of glue evenly, the sample is placed in H 2 Annealed at 900°C for 120 minutes to prepare Ag 0.15 Cu 0.05 / (SiO 2 ) 0.80 Composite film.

Embodiment 2

[0018] Mix 2.3ml TEOS and 1.8ml H 2 O dissolved in 9.2ml CH3 OCH 2 CH 2 OH, after stirring in an ultrasonic cleaner for 1 minute, add 1 drop of concentrated nitric acid, and stir for 10 hours for hydrolysis and polycondensation, then add 1.3213g Cu(NO 3 ) 2 ·3H 2 O, stirred for 2.5 hours to obtain Cu / SiO 2 solution, followed by the addition of 0.0157gAgNO 3 , and stirred again for 0.5 h to obtain Ag x Cu y / (SiO 2 ) z Precursor solution; when uniforming the film, drop the solution onto the substrate, first run at 500rpm for 6 seconds, then run at 4000rpm for 40 seconds. Every time the glue is evenly glued, the film is thermally decomposed at 150°C for 2 seconds. After 50 times of glue evenly, the sample is placed in H 2 Annealing at 600°C for 120 minutes to prepare Ag 0.01 Cu 0.35 / (SiO 2 ) 0.64 Composite film.

Embodiment 3

[0020] Mix 0.20ml TEOS and 1ml H 2 O dissolved in 8ml CH 3 OCH 2 CH 2 OH solvent, stirred in an ultrasonic cleaner for 1 minute, added 10 drops of concentrated nitric acid, stirred for 6 hours for hydrolysis and polycondensation, then added 1.3213g Cu(NO 3 ) 2 ·3H 2 O, stirred for 2 hours to obtain Cu / SiO 2 solution, followed by the addition of 0.9444gAgNO 3 , and stirred again for 1 hour to obtain Ag x Cu y / (SiO 2 ) z Precursor solution; when uniforming the film, drop the solution onto the substrate, first run at 1000rpm for 5 seconds, and then run at 1000rpm for 50 seconds. After homogenizing the glue once, the film was thermally decomposed at 600°C for 300 seconds, and then the sample was placed in H 2 Annealed at 300°C for 30 minutes in the atmosphere to prepare Ag 0.60 Cu 0.35 / (SiO 2 ) 0.05 Composite film.

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
percent by volumeaaaaaaaaaa
Login to View More

Abstract

The invention discloses preparing method of nanometer silver-copper particle scattering silicon oxide optical thin film in nanometer metallic particle and inorganic non-metallic material composite domain, which is characterized by the following: adopting sol-gel method to prepare AgxCuy / (SiO2)z optical composite thin film; expressing mass percent of Ag, Cu and SiO2 as x, y and z; setting the x at 1-60wt%; setting the y at 5-35wt%; setting the z at 5-80wt%. This invention possesses the advantages of cheap price and short preparing period, which can use simple device to prepare the thin film with special optical property.

Description

technical field [0001] The invention belongs to the field of compounding of nano-metal particles and inorganic non-metallic materials, and particularly provides a nano-silver copper particle-dispersed silica optical film and a preparation method, involving two kinds of nano-silver copper metal particles dispersed in an oxidized matter (SiO 2 ) Composition design and preparation process of nonlinear optical thin film materials. Background technique [0002] Based on the surface effect and quantum size effect of metal nanoparticles, when the nanoparticles are effectively dispersed in the oxide film, the nanoparticles will interact with the surrounding oxide matrix, and the electrons and ions inside the particles will transfer to the interface to form a plasma. , under the action of incident light, the phenomenon of surface plasmon resonance occurs, showing selective absorption and transmission of incident light waves. Functional films with such nonlinear optical properties ha...

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): C03C17/22C03C17/23C04B41/50
Inventor 张波萍李松杰王蕾丁昕祯陈灿张海龙
Owner UNIV OF SCI & TECH BEIJING
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