Spectrum local decorated thermocolour glass and method for making same

A glass and thermochromic technology, applied in the field of thermochromic glass and its preparation, can solve problems such as unfavorable industrialization promotion and application, multi-film structure increases preparation cost, etc., and achieves the effect of enhanced performance and expanded application range

Inactive Publication Date: 2008-06-25
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 usual multi-layer structure design can only be realized in a relatively large wavelength range, which inevitably affects other wave bands; on the other hand, the multi-layer structure will greatly increase the preparation cost, which is not conducive to industrialization and application
So far, there is no simple and practical technique for local modification of thin film spectra

Method used

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  • Spectrum local decorated thermocolour glass and method for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Thermochromic glass with locally modified spectrum, including matrix quartz glass and vanadium dioxide film, on which Ag nanoparticles are deposited.

[0025] (2) Preparation method:

[0026] VO 2 The films and Ag nanoparticles were prepared by magnetron sputtering. The magnetron sputtering system consists of a transition chamber and a main sputtering chamber (45 cm in diameter). The main sputtering chamber is connected with a molecular diffusion pump, and the ultimate vacuum is 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 upwards in a confocal manner or sputtered upwards in a three-target independent manner. The sample stage can be heated up to over 600°C and can keep rotating continuously during the sputtering process.

[0027] In this experiment, the substrate (substrate) is made of quartz glass. The substrate ...

Embodiment 2

[0033] (1) Thermochromic glass with locally modified spectrum, including matrix quartz glass and vanadium dioxide film, on which Ag nanoparticles are deposited.

[0034] (2) Preparation method:

[0035] The experimental process and parameter setting are the same as those in Example 1, except that Ag is sputtered for 5 minutes. At this time VO 2 The mass thickness of Ag nanoparticles deposited on the film is about 10nm.

[0036] The results of AFM measurement are: the Ag nanoparticles are mainly oblate and the average diameter of the parallel film surface is about 110nm, and they are evenly distributed in the VO 2 the surface of the film.

[0037] The results of thermochromic spectroscopy show that: at room temperature, Ag nanoparticles 2 The band of the modified effect produced by the transmission spectrum is located near 1000nm; at high temperature, the modified band is located near 750nm. As shown in Figure 1(c).

Embodiment 3

[0039] (1) Thermochromic glass with locally modified spectrum, including matrix quartz glass and vanadium dioxide film, and Au nanoparticles are deposited in the film layer of vanadium dioxide film.

[0040] (2) Preparation method:

[0041] The preparation method of vanadium dioxide is the same as Example 1. The preparation of Au nanoparticles is exactly the same as the preparation of Ag nanoparticles in Example 1, the difference is that the sputtering target material Ag target is replaced by Au target. The preparation process is as follows: first deposit vanadium dioxide film, the deposition time is 30 minutes; then deposit Au nanoparticles according to the deposition conditions of Example 1, sputtering time is 5 minutes; after that, continue to deposit vanadium dioxide, the deposition time is 30 minutes. At this time, the Au nanoparticles are embedded in the vanadium dioxide film layer (the spherical polyhedron of the Au nanoparticles is tested by TEM, and the average parti...

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Abstract

The invention discloses a thermal-color glass polished partly by a spectrum, which consists of glass substrate, a vanadium dioxide film and nanometer particles of noble metal deposited on the upper surface of the vanadium dioxide film or in the vanadium dioxide filmThe invention also discloses a method for preparing partly polished coating glass of the vanadium dioxide, which includes the following steps: (1) a glass substrate is heated to 500 DGE C and the temperature is kept invariant; (2) a VO2 film is prepared; (3) the nanometer particles of the noble metal are deposited.The method for preparing the thermal-color glass polished partly by spectrum in the invention is easy to be operated and can effectively realize part polishing of thermal-color spectrum of the vanadium dioxide coating glass; the partly polished coating glass of the vanadium dioxide has stronger performance and wider application range.

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 thermochromatic glass with locally modified spectrum and a preparation method thereof. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23C03C17/36
Inventor 徐刚陈丽华徐雪青苗蕾陈德明
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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