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Oxide film of porous structure and preparation method and application of oxide film

A technology of oxide film and porous structure, applied in the field of oxide film with porous structure and its preparation, can solve the problem of difficult to meet the high requirement of visible light transmittance, and achieve simple structure, high visible light transmittance and transparency Good results

Pending Publication Date: 2017-02-22
瀛石(上海)实业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the method used can only obtain a continuous and dense film. Related to this structure, the peak visible light transmittance of the film is usually lower than 70%, generally 40-60%, which is difficult to meet the visible light transmittance of the front shield of the car. high requirements

Method used

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  • Oxide film of porous structure and preparation method and application of oxide film
  • Oxide film of porous structure and preparation method and application of oxide film
  • Oxide film of porous structure and preparation method and application of oxide film

Examples

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Embodiment 1

[0035] Such as Figure 1 to Figure 3 Shown, a kind of preparation method of the oxide thin film with porous structure, it comprises the following steps:

[0036] Step A, substrate pretreatment

[0037] A1, first wash the substrate (the substrate is made of architectural glass) and then dry it;

[0038] A2, reconfigure a toluene solution containing a silane-containing surfactant (the surfactant in this embodiment is octadecyltrichlorosilane), wherein the silane content is 0.5-5%;

[0039] A3, soak the substrate in the above toluene solution and let it stand for a period of time (the standing time is less than 2 hours), then take it out and wash it, and dry it at 120 degrees Celsius for 1-30 minutes (preferably the drying time is less than 10 minutes) , will be as figure 2 The hollow mask shown is placed on the substrate, irradiated with ultraviolet light (ultraviolet wavelength less than 254 nanometers) for a certain period of time (irradiation time less than 1 hour) to for...

Embodiment 2

[0047] Embodiment 2, embodiment 2 is basically the same as embodiment 1, the difference is that the substrate 1 adopts sapphire; the vanadium dioxide grains 2 are doped vanadium dioxide grains, and the doping ions are W, Mo , Ti, Mg, F in one or more.

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Abstract

The invention discloses an oxide film of a porous structure. The oxide film comprises a substrate and oxide crystal grains covering the substrate; the oxide crystal grains are of crystal structures in metal-insulator transition and display regular annular structures, and the oxide crystal grains of the annular structures cover the substrate to form the continuous oxide film, wherein the inner diameter of the annular structures of the oxide crystal grains ranges from 30 nanometers to 3,000 nanometers. A preparation method of the oxide film comprises a step A of substrate pretreatment; a step B of coating liquid preparation; a step C of film preparation. The oxide film of the porous structure can be used for making building energy saving windows, windows of mobile transportation facilities, shun-shading canopies and the like. The oxide film has ultrahigh visible light transmittance, and the peak value exceeds 90% and reaches 97% to the maximum. Meanwhile, the oxide film of the porous structure has the characteristic of sun infrared light regulation controlled by temperature, and the solar energy transmittance change rate is larger than 4% at high and low temperature.

Description

technical field [0001] The invention belongs to the technical field of energy saving and solar power generation, and in particular relates to an oxide thin film with a porous structure and a preparation method and application thereof. Background technique [0002] Energy-saving window technology is an important way to save energy for building and vehicle glass. However, the existing energy-saving windows generally only have the function of regulating the penetration of sunlight and heat, and cannot be used in conjunction with power generation systems, especially solar photovoltaic power generation systems. The functions are single and comprehensive. Less energy efficient. [0003] Common window glass energy-saving technologies usually rely on glass surface coatings, which can absorb, reflect, or partially absorb and partially reflect sunlight, thereby adjusting the transmittance of sunlight, especially in the infrared region, to achieve energy-saving purposes. Ideal energy-...

Claims

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Application Information

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IPC IPC(8): C03C17/25
Inventor 高彦峰
Owner 瀛石(上海)实业有限公司