Three-dimensional movable intelligent window based on vanadium dioxide film curly structure and preparation method of three-dimensional movable intelligent window

A vanadium dioxide and smart window technology, applied in the field of smart windows, can solve problems such as the bottleneck of sunlight modulation rate

Active Publication Date: 2021-03-19
FUDAN UNIV
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Problems solved by technology

These structures are limited to two-dimensional planes, and the modulation rate of sunlight has reached a bottleneck

Method used

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  • Three-dimensional movable intelligent window based on vanadium dioxide film curly structure and preparation method of three-dimensional movable intelligent window
  • Three-dimensional movable intelligent window based on vanadium dioxide film curly structure and preparation method of three-dimensional movable intelligent window

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Embodiment Construction

[0031] The preparation method and effect of the single-layer vanadium dioxide curled structure smart window will be described in detail below in conjunction with the accompanying drawings. The following examples are used to illustrate the present invention, but not to limit the content of the present invention.

[0032] "Fabrication of Smart Windows Based on Transparent Curled Vanadium Dioxide Thin Film Arrays"

[0033] (1) Take a 1 cm × 1 cm quartz plate as the substrate, ultrasonically clean it with acetone, ethanol, and deionized water for ten minutes, and dry it in a nitrogen stream.

[0034] (2) On the cleaned quartz wafer substrate, a vanadium dioxide film is deposited by magnetron sputtering. The magnetron sputtering equipment can adopt PVD75 type magnetron sputtering equipment produced by Kurt J. Lesker Company. The target material is a metal vanadium target, the RF power supply is 200W, the total sputtering time is 1200s, and the ratio of oxygen and argon is kept at...

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Abstract

The invention belongs to the technical field of intelligent windows, and particularly relates to a three-dimensional movable intelligent window based on a vanadium dioxide film curly structure and a preparation method of the three-dimensional movable intelligent window. The intelligent window structure comprises a quartz glass substrate with a flat surface and a tubular structure array which is formed on the substrate and is formed by curling a vanadium dioxide film; each tubular structure can work independently; and the vanadium dioxide film has sunlight regulation and control capability before and after phase change. The intelligent light control mode of the intelligent window comprises the steps that the vanadium dioxide film curls at room temperature, so that the curled area is completely pervious to light by quartz, and the light transmittance is improved; and at a high temperature, the curvature of the curled vanadium dioxide structure is reduced due to strain change generated byphase change until the curled vanadium dioxide structure is completely flattened on the surface of the quartz, and the curled vanadium dioxide structure is attached to the substrate again to form theplanar vanadium dioxide film. According to the three-dimensional movable intelligent window, the light transmittance at room temperature is improved, and the infrared limiting capability at high temperature is kept basically unchanged, so that the sunlight modulation capability of the intelligent window is improved. The preparation method is simple, low in cost and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of smart windows, and in particular relates to a three-dimensional movable smart window based on a vanadium dioxide film curl structure and a preparation method thereof. Background technique [0002] With the trend of global warming and the increasingly serious shortage of resources, sustainable and green development, reducing energy consumption, and efficient and rational use of resources have become the focus of attention of various countries. According to the data, nearly 30% of China's total energy consumption comes from the energy loss of the building itself, and in the total energy consumption of the building, the heat dissipation of glass doors and windows accounts for 50% of it. In order to reduce energy waste, researchers focus on the windows of buildings. In modern skyscrapers, windows almost wrap the entire surface of the building and undertake the daily energy exchange (including heat convection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B3/67C23C14/35C23C14/08
CPCE06B3/6722C23C14/35C23C14/083
Inventor 梅永丰李星
Owner FUDAN UNIV
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