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Dispersed cobaltosic oxide optical film of silver and gold nano particles and preparation method

A technology of gold nanoparticles and cobalt tetroxide, applied in optics, nonlinear optics, instruments, etc., to achieve excellent nonlinear optical properties and increase the range

Inactive Publication Date: 2011-01-19
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of Au, Ag binary metal particles dispersed cobalt tetroxide optical thin film in the form of simple substance by sol-gel method has not been reported yet.

Method used

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  • Dispersed cobaltosic oxide optical film of silver and gold nano particles and preparation method
  • Dispersed cobaltosic oxide optical film of silver and gold nano particles and preparation method

Examples

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Embodiment 1

[0007] Weigh 0.8731g of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 0.1699g of silver nitrate (AgNO 3 ) and 0.4188g of chloroauric acid (HAuCl 4 4H 2 (2), join respectively in the 10ml ethylene glycol monomethyl ether solvent, stir 3 hours on the magnetic stirrer, aging 6 hours, obtain the Co parent solution that concentration is 0.3mol / L, the Ag parent solution of 0.1mol / L and 0.1mol / L Au parent solution; then measure 9.8ml of Co parent solution and 0.2ml of Ag parent solution, mix the two solutions, stir on a magnetic stirrer for 5 hours, and age for 8 hours to obtain Ag 0.02 / (Co 3 o 4 ) 0.98 precursor solution. In the same way, measure 9.8ml of Co parent solution and 0.2ml of Au parent solution to prepare Au 0.02 / (Co 3 o 4 ) 0.98 precursor solution. Before gluing, the substrate was ultrasonically cleaned in distilled water, ethanol, and acetone, and then put into a drying oven to dry, and then coated with a layer of prepared Ag 0.02 / (Co 3 o 4 ) 0.98 The precur...

Embodiment 2

[0009] Weigh 0.8731g of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 0.1699g of silver nitrate (AgNO 3 ) and 0.4188g of chloroauric acid (HAuCl 4 4H 2 (2), join respectively in the 10ml ethylene glycol monomethyl ether solvent, stir 3 hours on the magnetic stirrer, aging 6 hours, obtain the Co parent solution that concentration is 0.3mol / L, the Ag parent solution of 0.1mol / L and Au matrix solution of 0.1mol / L; then measure 6ml of Co matrix solution and 4ml of Ag matrix solution, mix the two solutions, stir on a magnetic stirrer for 5 hours, and age for 8 hours to obtain Ag 0.4 / (Co 3 o 4 ) 0.6 precursor solution. In the same way, measure 6ml of Co parent solution and 4ml of Au parent solution to prepare Au 0.4 / (Co 3 o 4 ) 0.6 precursor solution. Before gluing, the substrate was ultrasonically cleaned in distilled water, ethanol, and acetone, and then put into a drying oven to dry, and then coated with a layer of prepared Ag 0.4 / (Co 3 o 4 ) 0.6 The precursor solutio...

Embodiment 3

[0011] Weigh 0.8731g of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 0.1699g of silver nitrate (AgNO 3 ) and 0.4188g of chloroauric acid (HAuCl 4 4H 2 (2), join respectively in the 10ml ethylene glycol monomethyl ether solvent, stir 3 hours on the magnetic stirrer, aging 6 hours, obtain concentration and be the Co precursor solution of 0.3mol / L, the Ag precursor solution of 0.1mol / L and 0.1mol / L Au parent solution; then measure 1ml of Co parent solution and 9ml of Ag parent solution, mix the two solutions, stir on a magnetic stirrer for 5 hours, and age for 8 hours to obtain Ag 0.9 / (Co 3 o 4 ) 0.1 precursor solution. In the same way, measure 4ml of Co parent solution and 6ml of Au parent solution to prepare Au 0.6 / (Co 3 o 4 ) 0.4 precursor solution. Before gluing, the substrate was ultrasonically cleaned in distilled water, ethanol, and acetone in sequence, and then put in a drying oven to dry, and then coated with a layer of Ag prepared after drying. 0.9 / (Co 3 o 4...

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Abstract

The invention relates to a dispersed cobaltosic oxide optical film of silver and gold nano particles and a preparation method, belonging to the field of composite materials of metal nano particles and oxides. The invention provides a dispersed oxide non-linear optical film of silver and gold metal element nano particles, which is characterized in that the chemical composition formula is as follows: AgxAuy / (Co3O4)1-x-y, wherein, x and y respectively show molar fraction of composition elements of Ag and Au, the numeric range of x is 0.01 to 0.6, the numeric range of y is 0.01 to 0.6 and the numeric range of x+y is 0.02 to 0.8. The silver and gold nano particles are dispersed in the cobaltosic oxide matrix in a metal element manner, the diameters of the silver and gold nano particles are respectively 1 to 100nm, the absorption peak is observed in the film at two wave bands of 350 to 450nm and 550 to 650nm, the optical absorption range is increased and the film has excellent non-linear optical characteristics.

Description

technical field [0001] The invention belongs to the field of composite materials of metal nanoparticles and oxides, and in particular proposes a silver and gold nanoparticle-dispersed tricobalt tetroxide optical film and a preparation method, and relates to the design and preparation process of various metal nanoparticle-dispersed oxide optical films. Background technique [0002] In recent decades, the research on metal nanoparticle nonlinear optical composite films has developed rapidly. In the optoelectronic industry, such as optical switches, optical communications, optical information processing, optical computers, and laser technology, nonlinear optical materials are required as basic materials. Metal nanoparticle nonlinear optical composite films have very broad application prospects. Now the research on this kind of film has been extended from the monolithic metal nanoparticle nonlinear optical composite film to the binary system metal nanoparticle nonlinear optical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355C03C17/22
Inventor 张波萍王士京赵翠华张美霞李顺
Owner UNIV OF SCI & TECH BEIJING
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