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Method for preparing chromatic vanadium dioxide thermo-color on glass substrate

A technology of vanadium dioxide and glass substrate is applied in the field of preparation of colored vanadium dioxide thermochromic glass to achieve the effect of beautifying the environment

Inactive Publication Date: 2014-04-02
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on applying vanadium dioxide to energy-saving windows started as early as the early 1970s, but there are still many technical problems to be solved, one of which is the color of vanadium dioxide smart glass

Method used

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  • Method for preparing chromatic vanadium dioxide thermo-color on glass substrate
  • Method for preparing chromatic vanadium dioxide thermo-color on glass substrate
  • Method for preparing chromatic vanadium dioxide thermo-color on glass substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (a) Cleaning of glass substrate

[0029] Put the glass substrate into high-purity alcohol and clean it ultrasonically for 5 minutes; then put it into acetone solution and clean it ultrasonically for 5 minutes. It was then blown dry with nitrogen and immediately placed in the film preparation chamber.

[0030] (b) Preparation of vanadium dioxide thin film

[0031] Preparation system: Magnetron sputtering is used. The magnetron sputtering system consists of a sample mounting chamber and a main sputtering chamber (45 cm in diameter). The main sputtering chamber is connected with a molecular diffusion pump with a vacuum of 2.0×10 -6 Pa. The sputtering chamber has three target positions for three different 2-inch diameter targets. Each target position is inclined upward at an angle of 30°, and can be co-sputtered in a confocal manner or independently sputtered with three targets. The sample stage can be heated up to 600°C and can rotate continuously during the sputteri...

Embodiment 2

[0037] The cleaning, preparation system and preparation conditions of the glass substrate are the same as in Example 1. The deposition time of the vanadium dioxide thin film is 32 minutes, and the film thickness is 65 nm. Viewed from the coated surface of the glass, the reflection color of the glass is light orange-yellow. Transmission spectrum and reflection spectrum see figure 2 .

Embodiment 3

[0039] The cleaning and preparation system of the glass substrate is the same as in Example 1.

[0040] Preparation conditions: use vanadium pentoxide ceramics as the sputtering target (purity 99.5%), feed Ar gas and H 2 Gas mixture [mixing ratio H 2 / (Ar+H 2 )=5%], the flow rate is 30 sccm, DC sputtering, and the sputtering power is set to 120W. Sputtering for 40 minutes, VO 2 The film thickness is about 95 nm. The deposition temperature was 500°C.

[0041] Viewed from the coated surface of the glass, the reflection color of the glass is royal blue. Transmission spectrum and reflection spectrum see image 3 .

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Abstract

The invention provides a preparation method for a colorful vanadium dioxide thermal stained glass on a glass substrate, which is characterized in that the following steps are sequentially included: (a) the glass substrate is washed and dried by a lotion or a solvent; (b) the glass substrate is put in a thin film deposition chamber and heated to 300-600 DEG C, (c) working gas is inlet; (d) magnetron sputtering preparation process is adopted to lead the vanadium dioxide to form film; (e) the film forming thickness is controlled to obtain vanadium dioxide coated glass with different reflection colors. By accurately controlling the thickness of the film, the preparation method can cause the reflection color of the glass to present the colors of light blue violet, blue violet, nattierblue, yellow or pink, etc. The colors can not only lead the vanadium dioxide thermal stained glass to have the purposes of high efficiency and energy conservation, but also decorate the appearance of the buildings to perform the role of beautifying the environment.

Description

technical field [0001] The invention belongs to the technical field of building energy saving in high-efficiency energy-saving and consumption-reducing technologies, and in particular relates to a preparation method of colored vanadium dioxide thermochromic glass technical background [0002] According to statistics, my country's building energy consumption has reached 30% of the total social energy consumption. With the expansion of my country's urbanization scale, the advancement of urban construction, and the improvement of people's living standards, building energy consumption will increase year by year. In 1996, my country's construction consumed 330 million tons of standard coal annually, accounting for 24% of the total energy consumption. By 2001, it had reached 376 million tons, accounting for 27.6% of the total consumption, with an annual growth rate of 5 / 1000. According to forecasts, my country's building energy consumption will climb to more than 35% in a relativ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/23C03C4/02
Inventor 徐刚黄春明侯乃升陈丽华黄华凛
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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