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Preparation method of electrochromic nickel oxide film

An electrochromic and nickel oxide technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of low optical modulation rate of nickel oxide film, cumbersome preparation process, complicated test method, etc., to reduce irreversible aggregation, wide application prospect, The effect of enhancing cycle stability

Pending Publication Date: 2021-07-13
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is usually cumbersome and expensive
[0004] The nickel oxide film prepared by the existing method has low optical modulation rate and poor cycle stability, and the test method is relatively complicated

Method used

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  • Preparation method of electrochromic nickel oxide film
  • Preparation method of electrochromic nickel oxide film
  • Preparation method of electrochromic nickel oxide film

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Embodiment 1

[0040] This embodiment provides a method of preparing a electrochromic nickel oxide film comprising the steps of:

[0041] (1) 2.49 parts by weight of tetrahydrate acetate is added to 24.125 parts by weight of ethylene glycol methyl ether. After stirring, 0.85 parts by weight of titanate, stirred, stirred and uniform, and mixed solution, wherein nickel and titanium moisture The ratio is 4: 1, and the metal ion concentration is 0.5 mol / L.

[0042] (2) 0.632 parts by weight of monoethanolamine is added dropwise to the mixed solution obtained by adding step (1), stirring is uniform to clear the blue solution, and the molar ratio of monoethanolamine and metal ions is 1: 1;

[0043] (3) 0.1 parts by weight of the PVP powder is slowly added to the above-mentioned clear blue solution, and then stirred well, stirred in a 60 ° C water bath, resulting in a light green transparent sol;

[0044](4) The light-green transparent sol obtained by step (3) was allowed to stand for 24 h, and then ...

Embodiment 2

[0049] This embodiment provides a method of detecting a resistance to electrochromic nickel oxide film comprising the steps of:

[0050] (1) 2.074 parts by weight of tetrahydrate acetate is added to 24.125 parts by weight of ethylene glycol methyl ether. After stirring, 1.418 parts by weight of titanate tetrabutyl is added, and the mixed solution is obtained, where the mixed solution is mixed, wherein the molar of nickel and titanium. The ratio is 2: 1, the metal ion concentration is 0.5mol / L

[0051] (2) 0.632 parts by weight of monoethanolamine is added dropwise to the mixed solution obtained by adding step (1), stirring is uniform to clear the blue solution, and the molar ratio of monoethanolamine and metal ions is 1: 1;

[0052] (3) 0.1 parts by weight of the PVP powder is slowly added to the above-mentioned clear blue solution, and then stirred well, stirred in a 60 ° C water bath, resulting in a light green transparent sol;

[0053] (4) The light-green transparent sol obta...

Embodiment 3

[0058] This embodiment provides a method of detecting a resistance to electrochromic nickel oxide film comprising the steps of:

[0059] (1) 2.765 parts by weight of tetrahydrate nickel is added to 24.125 parts by weight of ethylene glycol methyl ether. After stirring, 0.473 parts by weight of titanate tetrabutyl is added, and the mixed solution is obtained, where the mixed solution is mixed, wherein nickel and titanium moisture The ratio is 8: 1, and the metal ion concentration is 0.5mol / L;

[0060] (2) 0.632 parts by weight of monoethanolamine is added dropwise to the mixed solution obtained by adding step (1), stirring is uniform to clear the blue solution, and the molar ratio of monoethanolamine and metal ions is 1: 1;

[0061] (3) 0.1 parts by weight of the PVP powder is slowly added to the above-mentioned clear blue solution, and then stirred well, stirred in a 60 ° C water bath, resulting in a light green transparent sol;

[0062] (4) The light-green transparent sol obtai...

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Abstract

The invention discloses a preparation method of an electrochromic nickel oxide film, and belongs to the technical field of electrochromic devices and application. The method comprises the following steps: by taking nickel acetate tetrahydrate, tetrabutyl titanate, monoethanolamine, PVP powder and ethylene glycol monomethyl ether as raw materials, preparing a titanium-doped nickel oxide film precursor solution through a sol-gel method; and then spin-coating the titanium-doped nickel oxide film precursor solution on the surface of a substrate, and then carrying out annealing treatment to obtain the titanium-doped nickel oxide electrochromic film. The method is simple and easy to implement, obvious in effect and universal, and has wide application prospects in the field of nickel oxide-based ionic electrochromism.

Description

Technical field [0001] The present invention relates to a method of preparing an electrochromic nickel oxide film, which belongs to an electrochromic device and an application technique. Background technique [0002] The electrochromic material is a smart material that can occur with stable reversible color under external electrical stimulation while having an intelligent material having optical modulation capabilities. Since the electrochromic material can be adjusted in the action of the small voltage, it is widely used in the field of smart windows, anti-glare glasses, displays. Nickel oxide NIO is a historic material for a long-standing anode electrochromic material that can achieve a transparent reducing state and dark brown oxidation state in an aqueous electrolyte and an organic electrolyte. Therefore, NiO can be used as an auxiliary pair electrode of the cathode discoloration material in the electrochromic device, or may match the electrode (e.g., CE02, etc.) which is sma...

Claims

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Application Information

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IPC IPC(8): C03C17/23C03C17/27G01N21/33
CPCC03C17/23C03C17/27G01N21/33
Inventor 刘振邱礼荣
Owner GUANGDONG UNIV OF TECH
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