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Flexible electrochromic device for regulating and controlling near-infrared light and preparation method

A near-infrared light and electrochromic layer technology, which is applied in the fields of instruments, optics, nonlinear optics, etc., can solve the problem of no control advantages in the infrared region

Inactive Publication Date: 2017-07-07
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Its disadvantages are: the advantages of transmittance control are concentrated in a certain wavelength or a certain range of wavelengths in the visible region, and there is no control advantage in the infrared region

Method used

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  • Flexible electrochromic device for regulating and controlling near-infrared light and preparation method
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  • Flexible electrochromic device for regulating and controlling near-infrared light and preparation method

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preparation example Construction

[0020] As described above, a method for preparing a flexible electrochromic device that regulates near-infrared light is characterized in that the steps of preparation are as follows:

[0021] 1. Prepare the counter electrode: the counter electrode is composed of the first layer of transparent flexible substrate 1, the second layer of transparent conductive layer 2 and the third layer of ion storage layer 3, using magnetron sputtering method, chemical vapor deposition method, spray method, extraction Preparation of counter electrode by pull method, electrodeposition method or spin coating method;

[0022] 2. Prepare the working electrode: the working electrode is composed of the fifth electrochromic layer 5, the sixth transparent conductive layer 2 and the seventh flexible substrate 1, using magnetron sputtering method, chemical vapor deposition method, spray method, extraction Preparation of working electrode by pull method, electrodeposition method or spin coating method;

...

Embodiment 1

[0030] The composition of the flexible device: the transparent flexible substrate is PET, the transparent conductive layer is ITO film, the ion storage layer is PB film, and the gel electrolyte is made of PMMA, LiClO4 and propylene carbonate, the electrochromic layer is WO 3 film;

[0031] Fabrication process of flexible devices:

[0032] Preparation of counter electrode: ITO film is prepared on transparent flexible PET substrate by magnetron sputtering method, PB film is deposited on ITO film by electrodeposition method, the thickness of ITO film is 200nm, and the thickness of PB film is about 100nm;

[0033] Preparation of working electrode: ITO film and WO were sequentially prepared on a transparent flexible PET substrate by magnetron sputtering 3 Thin film, ITO thickness is 200nm, WO 3 The thickness of the film is about 300nm;

[0034] Preparation of gel electrolyte: LiClO 4 Dissolve in propylene carbonate at a concentration of 0.1mol / l to form solution A, dissolve PMM...

Embodiment 2

[0038] The composition of the flexible device: the transparent flexible substrate is PET, the transparent conductive layer is ITO film, the ion storage layer is NiO film, and the gel electrolyte is made of PMMA, LiClO 4 and propylene carbonate, the electrochromic layer is WO 3 film;

[0039] Fabrication process of flexible devices:

[0040] Preparation of the counter electrode: ITO film and NiO film were sequentially prepared on the transparent flexible PET substrate by magnetron sputtering method, the thickness of the ITO film was 200nm, and the thickness of the NiO film was about 500nm;

[0041] Preparation of working electrode: ITO film and WO were sequentially prepared on a transparent flexible PET substrate by magnetron sputtering 3 Thin film, ITO thickness is 200nm, WO 3 The thickness of the film is about 300nm;

[0042] Preparation of gel electrolyte: LiClO 4 Dissolve in propylene carbonate at a concentration of 0.1mol / l to form solution A, dissolve PMMA in propyle...

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Abstract

The invention belongs to a electrochromic technology and relates to a flexible electrochromic device for regulating and controlling near-infrared light and a preparation method. The flexible electrochromic device is characterized by being formed by superposing 7 functional layers. The method comprises the preparation steps of manufacturing a counter electrode; manufacturing a work electrode; preparing a gel electrolyte; and assembling devices. The invention provides a preparation method of the flexible electrochromic device for regulating and controlling the near-infrared light. The transmittance of the device in a near-infrared region can be dynamically regulated and controlled.

Description

technical field [0001] The invention belongs to electrochromic technology, and relates to a flexible electrochromic device for regulating near-infrared light and a preparation method. Background technique [0002] The characteristic of electrochromic (Electrochromic, EC) material is that its optical properties have a reversible and permanent and stable change under the drive of external voltage, and its appearance shows a color change. Devices composed of electrochromic materials are called electrochromic devices. After decades of research and development of electrochromic technology, electrochromic devices have gradually realized their small-scale application. For example, they can be applied in electrochromic windows. It is an energy-saving and environmentally friendly green technology to reduce the energy consumption of indoor temperature control equipment and improve energy utilization; it can also be applied to transparent parts of vehicles (cars, airplanes), such as r...

Claims

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Application Information

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IPC IPC(8): G02F1/15G02F1/153G02F1/155
CPCG02F1/15G02F1/153G02F1/155G02F2001/1552G02F2001/1555
Inventor 张官理韦友秀颜悦陈牧刘伟明
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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