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A kind of nano-gold particles dispersed cobalt oxide composite optical film and its preparation method

A technology of nano-gold particles and composite films, which is applied in the field of composite materials of nano-metal particles and metal oxide materials, to achieve the effects of low reaction temperature, short preparation cycle and energy saving

Inactive Publication Date: 2012-02-15
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Recently, we used the sol-gel method to prepare Ag / CoO composite films, which proved that the nano-metal particle embedded CoO medium has excellent nonlinear absorption (patent application number: 200810223795.7), but the Au particle-dispersed CoO composite optical film and its preparation method has not yet been reported

Method used

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  • A kind of nano-gold particles dispersed cobalt oxide composite optical film and its preparation method
  • A kind of nano-gold particles dispersed cobalt oxide composite optical film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 0.29397g (0.001mol) cobalt nitrate and 0.4139g (0.001mol) chloroauric acid were dissolved in 10ml ethylene glycol monomethyl ether, stirred for 1 hour to obtain 0.1mol / L pink CoO precursor solution and golden chloroauric acid solution , after aging for 2 hours, mix 1ml of CoO precursor solution and 9ml of chloroauric acid solution and stir for 6 hours to obtain Au / CoO precursor solution; 15 minutes, then drop the solution onto the substrate, first run at 300rpm for 20 seconds, then run at 1000rpm for 50 seconds. After homogenizing the glue, thermally decompose the film at 100°C for 2 seconds, shake the glue once, and finally place the sample in N 2 Annealed in an atmosphere furnace for 10 minutes, the heating rate was 50°C / min, and the annealing temperature was 600°C to prepare Au 0.9 / (CoO) 0.1 Composite film.

Embodiment 2

[0017] 0.58794g (0.002mol) cobalt nitrate and 0.8277g (0.002mol) chloroauric acid were dissolved in 10ml ethylene glycol monomethyl ether, stirred for 3 hours to obtain 0.2mol / L pink CoO precursor solution and golden chloroauric acid solution , after aging for 4 hours, mix 3ml of CoO precursor solution and 7ml of chloroauric acid solution, and stir for 4 hours to obtain Au / CoO precursor solution; 20 minutes, then drop the solution onto the substrate, first run at 500rpm for 15 seconds, then run at 1500rpm for 40 seconds. After homogenizing the glue, thermally decompose the film at 200°C for 10 seconds, repeat this 5 times, and finally place the sample in N 2 Annealed in an atmosphere furnace for 30 minutes, the heating rate was 30°C / min, and the annealing temperature was 550°C to prepare Au 0.7 / (CoO) 0.3 Composite film.

Embodiment 3

[0019] 0.88201g (0.003mol) cobalt nitrate and 1.2416g (0.003mol) chloroauric acid were dissolved in 10ml ethylene glycol monomethyl ether, stirred for 5 hours to obtain 0.3mol / L pink CoO precursor solution and golden chloroauric acid solution , after aging for 5 hours, mix 5ml of CoO matrix solution and 5ml of chloroauric acid solution, and stir for 4 hours to obtain Au / CoO precursor solution; 15 minutes, then drop the solution onto the substrate, first run at 700rpm for 15 seconds, then run at 2000rpm for 30 seconds. After homogenizing the glue, thermally decompose the film at 300°C for 100 seconds, repeat this 20 times, and finally place the sample in N 2 Annealed in an atmosphere furnace for 120 minutes, the heating rate was 15°C / min, and the annealing temperature was 500°C, to prepare Ag 0.5 / (CoO) 0.5 Composite film.

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Abstract

The invention discloses a nano-gold particle dispersed cobalt oxide composite optical film and a preparation method thereof, belonging to the field of nano-metal particles and inorganic non-metallic composite materials. The invention adopts sol-gel method to prepare Aux / (CoO)1-x composite film, x represents the mole fraction of Au, and its value range is 0.1≤x≤0.9. The raw materials are cobalt nitrate (Co(NO3)2 6H2O) and chloroauric acid (HAuCl4 4H2O), the solvent is ethylene glycol monomethyl ether (CH3OCH2CH2OH), the concentration of cobalt nitrate solution is 0.1~0.8mol / L, the annealing atmosphere For industrial nitrogen. The invention has the advantages of: the precursor solution is prepared by the sol-gel method, and the stoichiometric composition of the film is easy to control; the process is simple, the price is low, the preparation cycle is short, and energy is saved; the prepared nano-gold particle-dispersed cobalt oxide composite optical film has excellent Its nonlinear optical properties, the absorption peak can be observed around the wavelength of 530-580nm, it has broad application prospects in the fields of optical switches, optical computers, optical wave splitters and so on.

Description

Technical field [0001] The present invention belongs to the field of nano metal particles and metal oxide material composite materials. It provides a method of nano -gold particles decentralized cobalt optical film preparation method, involving a nano metal particles (AU) dispersion oxides (COO) non -linear optical filmDesign and preparation of materials. Background technique [0002] In the current era of rapid development of information technology, the development of the optoelectronics industry has developed rapidly, and the demand for photoelectric functional materials is also increasing.In the electronics industry, such as optical switch, optical communication, optical information processing, optical computers, laser technology, etc., are based on non -linear optical materials. Therefore, non -linear optical materials have attracted widespread attention in recent decades.Nano -metal particles decentralized medium composite film. Due to the surface plasma resonance and LAN e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00C03C17/06C03C17/23
Inventor 张波萍张美霞赵翠华李顺
Owner UNIV OF SCI & TECH BEIJING
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