Preparation method for intelligent color changing window

Abstract

The invention provides a preparation method for an intelligent color changing window. The preparation method for the intelligent color changing window comprises the following steps: growing a conducting material on a substrate by adopting a chemical vapor deposition method to form a first conducting layer; growing transition metal oxides and a mixture thereof on the first conducting layer by adopting the chemical vapor deposition method to form an electrochromic layer; performing ion implantation on the electrochromic layer by adopting a two-electrode or three-electrode electrochemical method; growing oxides or inorganic solid state lithium salts on the electrochromic layer by adopting a method for performing lithiation on the electrochromic layer or the chemical vapor deposition method to form an ion conduction layer; growing the transition metal oxides and the mixture thereof on the ion conduction layer by adopting the chemical vapor deposition method to form an ion storage layer; growing the conducting material on the ion storage layer by the chemical vapor deposition method to form a second conducting layer; growing a protective layer on the second conducting layer to obtain the intelligent color changing window. The preparation method is low in production cost, and can prepare an electrochromic device on glass with a certain curved surface.

Description

technical field [0001] The invention relates to the field of materials, in particular to a method for preparing an intelligent color-changing window by using a chemical and electrochemical integration method. Background technique [0002] Electrochromic device (Electrochromic Device) refers to a type of device whose optical properties change under the action of voltage applied to two electrodes. The optical properties of a device generally include its color, transmittance, reflectivity, refractive index, and surface emissivity. Glass windows constructed using this characteristic of electrochromic materials can dynamically adjust sunlight according to the actual needs of the surrounding environment or people's wishes. This type of device glass is called a smart window (Smart Window). It is precisely because the energy of sunlight entering buildings can be controlled and adjusted according to needs, smart windows can significantly save energy consumption for lighting, heating...

AI Technical Summary

Problems solved by technology

[0027] The second is that the existing commercial preparation method physical vapor deposition method has inherent linear deposition characteristics, that is, if the substrate surface is uneven, it will lead to uneven thickness of the deposited film

[0028] Third, at present, the existing smart window devices in the world all use conductive ions Li+ to achieve electrochromism, and the color change conversion speed is relatively slow compared to the smaller H+

[0029] Fourth, the ion-conducting layer used in early electrochromic devices was in the form of a liquid-phase electrolyte. Due to the shortcomings of leakage, easy deformation, uneven coloring, and unsuitability for large-scale production, such devices cannot be truly commercialized.

[0030] Fifth, other existing electrochromic devices using organic electrochromic materials or sol ion-conducting materials also have disadvantages such as poor chemical stability, poor thermal radiation resistance, and weak adhesion to substrate inorganic materials (such as glass)

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