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A kind of nano-copper particle dispersed cobalt oxide composite optical film and its preparation method

A composite film, cobalt oxide technology, applied in optics, nonlinear optics, instruments, etc., to achieve the effects of simple operation, low price, and short preparation period

Inactive Publication Date: 2012-02-22
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 Cu 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-copper particle dispersed cobalt oxide composite optical film and its preparation method
  • A kind of nano-copper particle dispersed cobalt oxide composite optical film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolve 0.29397g (0.001mol) cobalt nitrate and 0.2428g (0.001mol) copper nitrate in 10ml ethylene glycol monomethyl ether respectively, and stir for 1 hour to obtain 0.1mol / L pink CoO precursor solution and blue copper nitrate solution , after aging for 2 hours, mix 1ml of CoO precursor solution and 9ml of copper nitrate solution and stir for 6 hours to obtain Cu / CoO precursor solution; 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 H 2 (5%)-Ar 2 (95%) annealed in a mixed atmosphere furnace for 10 minutes, the heating rate was 7°C / min, and the annealing temperature was 600°C, the prepared Cu 0.9 / (CoO) 0.1 Composite film.

Embodiment 2

[0018] Dissolve 0.58794g (0.002mol) cobalt nitrate and 0.4856g (0.002mol) copper nitrate in 10ml ethylene glycol monomethyl ether respectively, and stir for 3 hours to obtain 0.2mol / L pink CoO precursor solution and blue copper nitrate solution , after aging for 4 hours, mix 3ml of CoO precursor solution and 7ml of copper nitrate solution and stir for 4 hours to obtain Cu / CoO precursor solution; 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 H 2 (10%)-Ar 2 (90%) annealed in a mixed atmosphere furnace for 30 minutes, the heating rate was 7°C / min, and the annealing temperature was 550°C, the prepared Cu 0.7 / (CoO) 0.3 Composite film.

Embodiment 3

[0020] Dissolve 0.88201g (0.003mol) cobalt nitrate and 0.7284g (0.003mol) copper nitrate in 10ml ethylene glycol monomethyl ether respectively, stir for 5 hours to obtain 0.3mol / L pink CoO precursor solution and blue copper nitrate solution , after aging for 5 hours, mix 5ml of CoO precursor solution and 5ml of copper nitrate solution and stir for 4 hours to obtain Cu / CoO precursor solution; 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 H 2 (30%)-Ar 2 (70%) annealed in a mixed atmosphere furnace for 120 minutes, the heating rate was 7°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 nanometer copper particle dispersed cobalt oxide composite optical film and a preparation method thereof, which belong to the field of nanometer metal particle and inorganic nonmetal composite material. The invention adopts a sol-gel method to prepare a Cux / (CoO)1-x composite thin film, x represents the mole fraction of Cu, and its value range is 0.1≤x≤0.9. The raw materials are cobalt nitrate (Co(NO3)2 6H2O) and copper nitrate (Cu(NO3)2 3H2O), the solvent is ethylene glycol monomethyl ether (CH3OCH2CH2OH), and the concentration of cobalt nitrate solution is 0.1~0.8mol / L , the annealing atmosphere is H2-Ar2 mixed gas. Using the sol-gel method to prepare the precursor solution, 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-copper particle-dispersed cobalt oxide composite optical film has excellent nonlinear optical properties. Absorption peaks can be observed near the wavelength of 550-580nm, and have broad application prospects in the fields of optical switches, optical computers, and optical wave splitters.

Description

technical field [0001] The invention belongs to the field of composite materials of nanometer metal particles and metal oxide materials, and provides a method for preparing a nanometer copper particle dispersed cobalt oxide optical film, and relates to a nanometer metal particle (Cu) dispersed oxide (CoO) nonlinear optical film Material design and preparation process. Background technique [0002] Materials science and information science are two important pillars of future technological development. Nanocomposite thin film materials are an important frontier of material science, while optoelectronics and photonics are an important frontier of information science. The nonlinear study of nanocomposite thin film materials straddles these two disciplines and has received extensive attention. Nano metal particles dispersed medium composite thin film material is a kind of nonlinear optical material with good application prospect. Due to the surface plasmon resonance and local ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00G02F1/35C03C17/06C03C17/23
Inventor 张波萍张美霞赵翠华李顺
Owner UNIV OF SCI & TECH BEIJING
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