Electrochromic device and color changing method thereof

An electrochromic device and electrochromic technology, applied in the field of color-changing devices, can solve the problems of less electrochromic materials, difficulty in finding cathode electrochromic materials for anode electrochromic materials, and difficulty in switching between colors, etc., to achieve expanded selection range, meet the multi-color display and the effect of personalized customization

Pending Publication Date: 2021-10-12
SHENZHEN GUANGYI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, since there are few types of electrochromic materials at present, it may be difficult to find a cathodic electrochromic material (or anodic electrochromic material) that matches its color for anodic electrochromic materials (or cathodic electrochromic materials). Independent design and development; and the

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  • Electrochromic device and color changing method thereof
  • Electrochromic device and color changing method thereof
  • Electrochromic device and color changing method thereof

Examples

Experimental program
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Example Embodiment

[0113] Example 1

[0114] This embodiment provides an electrochromic device, which is schematically shown figure 1 As shown, including the first substrate 1, the first transparent conductive layer 2, the first electrical discoloration layer 3, the electrolyte layer 4, the second electrochromic layer 5, the second transparent conductive layer 6, and the second substrate 7 The material of the first electrochromic layer 3 and the second electrochromic layer 5 is an anode electroless reducing material.

[0115] The method of preparing the electrochromic device is as follows:

[0116] 1) Preparation of the first electrochromic layer 3:

[0117] 300 mg of poly 2 - [(2-ethylhexyloxy) methyl] 3,4-thiophene and 1,4 dioxane dissolved in 10 ml of o-xylene, magnetic force was stirred for 10 h, and then the resulting solution dropped to plating The first electrochromic layer 3 (thickness 200 nm) is formed after the ITO layer (first transparent conductive layer 2) on the glass substrate (first ...

Example Embodiment

[0130] Example 2

[0131] This embodiment provides an electrochromic device, which is schematically shown figure 1 As shown, including the first substrate 1, the first transparent conductive layer 2, the first electrical discoloration layer 3, the electrolyte layer 4, the second electrochromic layer 5, the second transparent conductive layer 6, and the second substrate 7 Where the material of the first electrochromic layer 3 and the second electrochromic layer 5 is a cathode electrochromic oxidation state coloring material.

[0132] The method of preparing the electrochromic device is as follows:

[0133] 1) Preparation of the first electrochromic layer 3:

[0134] It is weighing 80 mg of ferric cyanide to dissolve in 25 ml deionized water, weighing 60 mg of nickel acetate is dissolved in 25 ml of deionized water, stir well. The potassium ferrocyanide solution was added to the nickel acetate solution to form a precipitate, and the precipitate was washed 3 times with water and etha...

Example Embodiment

[0147] Example 3

[0148] The present embodiment provides an electrochromic device, such as a schematic view of the structure figure 1 Shown, comprising sequentially laminating a first substrate 1, a first transparent conductive layer 2, a first electrochromic layer 3, an electrolyte layer 4, a second electrochromic layer 5, the second conductive layer 6 and the second transparent substrate 7 ; wherein the first electrochromic layer 3 and a second layer of dielectric material 5 are electrochromic cathodic electrochromic coloring material reduced state.

[0149] The method for preparing an electrochromic device is as follows:

[0150] 1) preparing a first electrochromic layer 3:

[0151] The 100mg, 99.9% purity tungsten powder was dissolved in 10mL, 30wt% hydrogen peroxide solution, stirred at room temperature for 4h, the precipitate was filtered after stirring layers fall, ethanol and glacial acetic acid were added, stirring was continued for 4h. After the resulting solution was d...

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Abstract

The invention provides an electrochromic device and a color changing method thereof. The electrochromic device comprises a first substrate, a first transparent conductive layer, a first electrochromic layer, an electrolyte layer, a second electrochromic layer, a second transparent conductive layer and a second substrate which are stacked in sequence. The first electrochromic layer and the second electrochromic layer are both made of cathode electrochromic materials or anode electrochromic materials. The color changing method comprises the step of circularly applying a voltage which is opposite to and the same as a first voltage in direction to the pre-processed electrochromic device, so that the electrochromic device is switched among different colors. According to the electrochromic device, by adopting the structure that the two electrochromic layers are both the anode electrochromic materials or the cathode electrochromic materials, and in combination with a specific color changing method, the switching between different colors is achieved, and the selection range of the electrochromic materials is expanded.

Description

technical field [0001] The invention belongs to the technical field of color-changing devices, and in particular relates to an electrochromic device and a color-changing method thereof. Background technique [0002] Electrochromism refers to the phenomenon that the optical properties of materials undergo a stable and reversible color change under the action of an external electric field, which is manifested as a reversible change in color and transparency in appearance. Materials with electrochromic properties are called electrochromic materials, and devices made of electrochromic materials are called electrochromic devices. Electrochromic devices have very important application prospects in the fields of color-changing glasses, electronic displays, military concealment, and building energy conservation. [0003] Existing electrochromic devices generally adopt a laminated structure of conductive layer-electrochromic layer-electrolyte layer-ion storage layer (electrochromic ...

Claims

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Application Information

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IPC IPC(8): G02F1/1514G02F1/1516G02F1/1524G02F1/153
CPCG02F1/1514G02F1/15165G02F1/1524G02F1/153G02F2001/1518G02F2001/1502G02F2001/164G02F1/1516G02F1/163G02F2201/44G02F1/1525
Inventor 程窍何嘉智曹超月
Owner SHENZHEN GUANGYI TECH CO LTD
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