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A kind of electrochromic glass based on molybdenum trioxide film, its preparation method and application

An electrochromic glass, molybdenum trioxide technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of low blocking efficiency, full solar spectrum band blocking, technical obstacles, etc., and achieve uniform and dense surface and thin film thickness. Adjustable, transmittance adjustable effect

Active Publication Date: 2021-08-13
合肥机数量子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the inherent visible light and infrared transmittance of the above-mentioned electrochromic materials in the coloring state are poorly adjustable. In short, it is difficult to simultaneously have strong absorption for visible light and infrared light bands in the solar spectrum. , the blocking efficiency of the material against sunlight in the colored state is low, and it loses its practical significance as a high-performance smart window material
According to the thickness of the film, the total transmittance of the common electrochromic devices made of the above materials to visible light is generally still higher than 50%, resulting in the color of the colored state usually being light blue and light yellow. Blocking of full solar spectrum bands still has technical hurdles

Method used

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  • A kind of electrochromic glass based on molybdenum trioxide film, its preparation method and application
  • A kind of electrochromic glass based on molybdenum trioxide film, its preparation method and application
  • A kind of electrochromic glass based on molybdenum trioxide film, its preparation method and application

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preparation example Construction

[0031] The present invention provides a method of preparing an electrochromic glass based on a molybdenum dioxide film, including:

[0032] A) Preparation MOO 3 film;

[0033] Preparation of electrolyte: Heating electrolyte is dissolved in a solvent to obtain a liquid electrolyte;

[0034] B) Apply the liquid electrolyte to MOO 3 The surface of the film is applied to the liquid electrolyte in the surface of the film, and the encapsulates to be MOO. 3 / Liquid electrolyte / ITO sandwich structure;

[0035] C) MOO of the sandwich structure 3 Connect the working electrode, the ITO connection to the electrode and the reference electrode to obtain electrochromic glass based on the molybdenum oxide film.

[0036] The preparation method of electrochromic glass based on the molybdenum oxide film provided by the present invention is first prepared by MOO 3 film.

[0037] Preparation of MOO of the present invention 3 The film is preferably specifically:

[0038] As the substrate as the ITO ...

Embodiment 1

[0065] Preparation MOO 3 Film: Use the commercial ITO glass substrate to cut it into a size of 5 cm × 5 cm, using a magnetron sputtering device, the chamber is vacuum is 4.5 × 10 -7 Torr, cavity temperature is 298K, RF power source power 200W, AR gas flow 30sccm; O 2 Gas flow 3sccm; coating, cavity vacuum 3mtorr, growth time is 1200s, growing a thickness of MOO 3 film.

[0066] 1.2G liclo 4 · 3h 2 O, in 5 ml of propylene carbonate (PC), after heating the solvent to 60 ° C, it is placed in an ultrasound for 2 hours to obtain a liquid electrolyte.

[0067] Wipe the liquid-like electrolyte evenly in MOO 3 The surface of the film, the other ITO glass conductive surface is close to the liquid electrolyte, control ITO glass and MOO 3 The distance between the surface of the film is 1 mm, then use a package glue package to make MOO 3 / Liquid electrolyte / ITO sandwich structure. In MOO 3 The film and ITO port connecting electrodes are connected to the DC voltage source and the reference ...

Embodiment 2

[0072] Preparation MOO 3 Film: Use the commercial ITO glass substrate to cut it into a size of 6 cm × 6cm, using magnetron sputtering equipment, cavity bottom vacuum is 4 × 10 -7 Torr, cavity temperature is 290K, radio frequency power source power is 180W, AR gas flow 25sccm; O 2 Air flow 2.8sccm; coating, cavity vacuum 2.5mtorr, growth time is 1000S, growing a thickness of MOO 3 film.

[0073] 2.4G liclo 4 · 3h 2 O, dissolved in 10 ml of vinyl carbonate (EC), after heating the solvent to 70 ° C, it was placed in an ultrasound for 3 hours to obtain a liquid electrolyte.

[0074] Wipe the liquid-like electrolyte evenly in MOO 3 The surface of the film, the other ITO glass conductive surface is close to the liquid electrolyte, control ITO glass and MOO 3 The distance from the surface of the film is 1.2mm, then use a package glue package to make MOO 3 / Liquid electrolyte / ITO sandwich structure. In MOO 3 The film and ITO port connecting electrodes are connected to the DC voltage so...

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Abstract

The invention provides a method for preparing electrochromic glass based on a molybdenum trioxide thin film, comprising: preparing MoO 3 thin film; the electrolyte is heated and dissolved in a solvent to obtain a liquid electrolyte; the liquid electrolyte is coated on MoO 3 On the surface of the film, the conductive surface of ITO glass is pasted on the liquid electrolyte, and MoO is obtained after packaging. 3 / liquid electrolyte / sandwich structure of ITO; the MoO of the sandwich structure 3 The working electrode is connected, the counter electrode and the reference electrode are connected to ITO, and the electrochromic glass based on the molybdenum trioxide film is obtained. The electrochromic glass based on molybdenum trioxide thin film of the present invention is made of MoO 3 / Liquid electrolyte / ITO structure, by applying voltage to the electrolyte coating on the surface of the film, the electrical conductivity of the film is changed, and the transmittance of the film in the visible and infrared bands can be adjusted at the same time, thereby effectively controlling the light-gathering rate of the film. Function to control indoor temperature.

Description

Technical field [0001] The present invention relates to the field of functional thin film preparation, and more particularly to electrochromic glass based on a molybdenum dioxide film, a preparation method and application thereof. Background technique [0002] Electrochromosis refers to the optical properties of the material (including reflectance, transmittance, absorbance, etc.) can be stably reversibly changed under external electric fields, thereby causing retrofibrification of color and appearance transparency. Materials with electrochromic properties are collectively referred to as electrochromic materials, which is a new type of functional material, widely used in information, electronics, energy, construction, and defense. Devices made from electrochromic materials are called electrochromic devices, and the application of electrochromic devices is achieved on the 787 fantasy passenger plane produced by Boeing and some architectural glass curtain walls. [0003] The report...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1524G02F1/153
CPCG02F1/1533G02F1/1524
Inventor 江俊朱青罗毅李鑫杨丽
Owner 合肥机数量子科技有限公司
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