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Fabrication method of flexible electrochromic layer and device

An electrochromic layer and electrochromic technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problem of electrochromic powder particles being difficult to form a film, and achieve the advantages of overcoming the difficulty of film formation, simple preparation process, low cost effect

Inactive Publication Date: 2016-08-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrochromic material in the flexible electrochromic layer is embedded in the three-dimensional space of metal foam, the adhesion between the electrochromic material and the metal foam substrate is good, the preparation process is simple, and the cost is low. The problem of easy film formation is applicable to all electrochromic powder particles. The size of the obtained electrochromic layer depends on the size of the foamed metal substrate, which is very conducive to the preparation of large-area flexible electrochromic layers and devices

Method used

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  • Fabrication method of flexible electrochromic layer and device
  • Fabrication method of flexible electrochromic layer and device
  • Fabrication method of flexible electrochromic layer and device

Examples

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Embodiment 1

[0048] The nickel foam described in this embodiment is commercially available nickel foam. The base material of the nickel foam is porous open-cell foam plastic. The conductive layer is prepared by three methods of electroless nickel plating, vacuum nickel plating and dipping conductive glue. After pre-plating nickel, it can be electroplated in the common sulfate nickel plating electrolyte. Thick nickel, a three-dimensional network-shaped nickel foam material obtained by burning, reducing, and annealing processes.

[0049] to prepare TiO on nickel foam 2 An example of an electrochromic layer and an electrochromic device assembled based on the electrochromic layer:

[0050] A method for preparing a flexible electrochromic layer, comprising the following steps:

[0051] Step 1: Treatment of foamed nickel: Cut the foamed nickel into a size of 3cm×3cm, ultrasonically clean it in deionized water for 10 minutes, ultrasonically clean it in ethanol for half an hour, and dry it for l...

Embodiment 2

[0063] The nickel foam described in this embodiment is commercially available nickel foam. The base material of the nickel foam is porous open-cell foam plastic. The conductive layer is prepared by three methods of electroless nickel plating, vacuum nickel plating and dipping conductive glue. After pre-plating nickel, it can be electroplated in the common sulfate nickel plating electrolyte. Thick nickel, a three-dimensional network-shaped nickel foam material obtained by burning, reducing, and annealing processes.

[0064] Take the preparation of polyaniline electrochromic layer on nickel foam and the electrochromic device assembled based on the electrochromic layer as an example:

[0065] A method for preparing a flexible electrochromic layer, comprising the following steps:

[0066] Step 1: Treatment of foamed nickel: Cut the foamed nickel into a size of 3cm×3cm, ultrasonically clean it in deionized water for 10 minutes, ultrasonically clean it in ethanol for half an hour, ...

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Abstract

The invention provides a preparation method for a flexible electrochromic layer and device and belongs to the field of functional materials and devices. The flexible electrochromic layer is made in the way that foam metal is coated with slurry of an electrochromic material, and then tabletting is conducted to obtain the compact electrochromic layer. In the flexible electrochromic layer, the electrochromic material is embedded in the three-dimensional space of the foam metal, the adhesive force of the electrochromic material to a substrate of the foam metal is good, the preparation process is simple, and cost is low. The preparation method solves the problem that electrochromic powder particles can not form a film easily, and is suitable for all electrochromic powder particles; the size of the obtained electrochromic layer depends on the size of the substrate of the foam metal, and the method is quite beneficial to preparation of the large-area flexible electrochromic layer and device.

Description

technical field [0001] The invention belongs to the technical field of functional materials and devices, in particular to a method for preparing a metal foam-based flexible electrochromic layer and a device. Background technique [0002] Electrochromism refers to the phenomenon that under the action of an external electric field, the reversible redox reaction of the material leads to changes in its optical properties (transmittance, absorptivity, reflectivity), and is manifested as a reversible change in color and transparency in appearance. . As early as the 1930s, there were related reports on electrochromic phenomena. With the deepening of related research, people gradually realized the potential application value of electrochromic phenomena. Electrochromic devices have been widely used in daily life: electrochromic energy-saving smart windows, automobile rearview anti-glare mirrors and display devices, etc. [0003] Most of the existing electrochromic layers are deposi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/15
Inventor 贾春阳付兴奇万中全
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA