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Method for preparing colorful vanadium dioxide thermo color glass

A kind of vanadium dioxide thermochromic and titanium dioxide technology, which is applied in the field of preparation of colored vanadium dioxide coated glass

Inactive Publication Date: 2008-09-24
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (a) Substrate cleaning

[0022] 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.

[0023] (b) Film preparation

[0024] 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 -5 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 temperature of the sample stage was raised to 500 °C and kept constant during the preparation of all films.

[0025] Th...

Embodiment 2

[0031] The cleaning and preparation system of the glass substrate is the same as in Example 1.

[0032] After the glass substrate is placed in the vacuum chamber, it is heated to 450°C, and it is inconvenient to maintain this temperature during the whole process of film preparation.

[0033] The preparation of vanadium dioxide is the same as embodiment 1, sputtering 50 minutes, VO 2 The film thickness is about 60nm.

[0034] The preparation of titanium dioxide: What adopt is metal titanium target (purity 99.5%), radio frequency sputtering, sputtering power is set as 120W, working gas is Ar gas and O 2 Gas mixed gas, the flow rate of Ar gas is 30sccm, O 2 The gas flow rate was 12 sccm. Sputtering for 30 minutes, TiO 2 The film thickness is about 40nm.

[0035] Viewed from the coated side of the glass, the reflection color of the glass is light blue.

Embodiment 3

[0037] The cleaning and preparation system of the glass substrate is the same as in Example 1.

[0038] The preparation condition of vanadium dioxide is the same as embodiment 1.

[0039] The preparation conditions of titanium dioxide are the same as in Example 1.

[0040] The deposition time of the vanadium dioxide thin film is 70 minutes, and the film thickness is 85 nanometers; the deposition time of titanium dioxide is 120 minutes, and the film thickness is 100 nanometers. Viewed from the coated surface of the glass, the reflection color of the glass is golden yellow.

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Abstract

The present invention provides a method for producing colorful vanadium dioxide thermo-color glass, which comprises the following steps in turn: (a) glass substrate is washed and dried in blowing way; (b) the glass substrate is arranged into a film deposit chamber and is heated to 400 to 600 DEG C; (c) working gas is ventilated in; (d) the vanadium dioxide thermo-color layer is prepared with the magnetic sputter-control preparation craftwork; (e) the titanium dioxide interference layer is prepared with the magnetic sputter-control preparation craftwork, and the film thickness of the interference layer is precisely controlled to obtain the vanadium dioxide thermo-color glass with different colors. Through the precise control of the film thickness, the reflecting color of the glass can be presented in pink, blue, absinthe green, golden yellow and other colors. With different colors, besides having the function of the high-efficient energy conservation, the vanadium dioxide thermo-color glass also has the decoration effect, thereby being easy to be accepted by the users.

Description

technical field [0001] The invention belongs to the technical field of building energy saving among high-efficiency energy-saving and consumption-reducing technologies, and in particular relates to a preparation method of colored vanadium dioxide coated 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 relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34C03C4/02
Inventor 徐刚黄春明何云富侯乃升
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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