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All-solid electrochromic device and preparation method thereof

An electrochromic device and electrochromic layer technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of high production line requirements, complex sputtering equipment, harsh production conditions, etc. The effect of high chemical stability and fast response speed

Active Publication Date: 2019-08-09
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most mature process for preparing electrochromic devices at home and abroad is the magnetron sputtering method. The electrochromic devices prepared by this process have better discoloration performance and cycle stability, but the sputtering equipment is complicated, and the size of the coated glass is limited by the vacuum of the machine. The limitation of the cavity requires a vacuum environment, harsh production conditions, and high requirements for the production line, so the preparation cost is high

Method used

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  • All-solid electrochromic device and preparation method thereof
  • All-solid electrochromic device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A method for preparing an all-solid-state electrochromic device, comprising the steps of:

[0064] Step 1: Treatment of Substrate A and FTO Glass (2cm×3cm)

[0065] (1) Ultrasonic cleaning treatment: Substrate A and FTO glass (2cm×3cm) with transparent conductive layer A are respectively cleaned with detergent, deionized water, acetone and ethanol in an ultrasonic device for 5 to 10 minutes After that, take it out and dry it with drying equipment;

[0066] (2) Surface active treatment: Substrate A and FTO glass (2cm×3cm) after ultrasonic cleaning are subjected to surface active treatment respectively, and set aside;

[0067] Step 2: Preparation of anodic electrochromic layer

[0068] Weigh 7.145g of nickel nitrate, dissolve it in 125ml of absolute ethanol and stir evenly; weigh 0.65g of lithium acetate, dissolve it in 125ml of absolute ethanol and stir evenly, mix the above two solutions together, stir homogeneous, a clear solution II was obtained;

[0069] Weigh 3....

Embodiment 2

[0087] A method for preparing an all-solid-state electrochromic device, comprising the steps of:

[0088] Step 1: Processing of Substrate A and Substrate B

[0089](1) Ultrasonic cleaning treatment: Substrate A and FTO glass (2cm×3cm) with transparent conductive layer A are respectively cleaned with detergent, deionized water, acetone and ethanol in an ultrasonic device for 5 to 10 minutes After that, take it out and dry it with drying equipment;

[0090] (2) Surface active treatment: Substrate A and FTO glass (2cm×3cm) after ultrasonic cleaning are subjected to surface active treatment respectively, and set aside;

[0091] Step 2: Preparation of anodic electrochromic layer

[0092] Weigh 7.145g of nickel nitrate, dissolve it in 125ml of absolute ethanol and stir evenly; weigh 0.65g of lithium acetate, dissolve it in 125ml of absolute ethanol and stir evenly, mix the above two solutions together, stir homogeneous, a clear solution II was obtained;

[0093] Weigh 3.278g of ...

Embodiment 3

[0111] A method for preparing an all-solid-state electrochromic device, comprising the steps of:

[0112] Step 1: Processing of Substrate A and Substrate B

[0113] (1) Ultrasonic cleaning treatment: Substrate A and FTO glass (2cm×3cm) with transparent conductive layer A are respectively cleaned with detergent, deionized water, acetone and ethanol in an ultrasonic device for 5 to 10 minutes After that, take it out and dry it with drying equipment;

[0114] (2) Surface active treatment: Substrate A and FTO glass (2cm×3cm) after ultrasonic cleaning are subjected to surface active treatment respectively, and set aside;

[0115] Step 2: Preparation of anodic electrochromic layer

[0116] Weigh 7.145g of nickel nitrate, dissolve it in 125ml of absolute ethanol and stir evenly; weigh 0.65g of lithium acetate, dissolve it in 125ml of absolute ethanol and stir evenly, mix the above two solutions together, stir homogeneous, a clear solution II was obtained;

[0117] Weigh 3.278g of...

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Abstract

The invention relates to an all-solid electrochromic device and a preparation method thereof. The all-solid electrochromic device comprises a substrate A and a substrate B; the inner side of the substrate A is sequentially provided with a transparent conductive layer A and an anode electrochromic layer; the inner side of the substrate B is sequentially provided with a transparent conductive layerB and a cathode electrochromic layer; and a solid electrolyte layer is arranged between the anode electrochromic layer and the cathode electrochromic layer. The preparation method includes the following steps of: (1) the treatment of a substrate A and a substrate B; (2) the preparation of a cathode electrochromic layer; (3) the preparation of a cathode electrochromic layer; (4) the preparation ofa solid electrolyte layer; and (5) the preparation of an all-solid electrochromic device. The method has the advantages of simplicity and convenience; and the all-solid electrochromic device has the advantages of high ionic conductivity and high anti-aging performance. According to the all-solid electrochromic device and the preparation method thereof, a complementary electrochromic film is adopted, and therefore, with a color change requirement satisfied, the rapid complementary color change of the electrochromic device under a low voltage is realized, the use safety of glass is improved; andthe driving voltage of the device is low, so that the device has a bright application prospect.

Description

technical field [0001] The invention belongs to the field of electrochromic devices, in particular to an all-solid-state electrochromic device and a preparation method thereof. Background technique [0002] Electrochromic devices mainly refer to a class composed of electrochromic materials and other functional materials through orderly combination, which can be extracted / injected through bidirectional extraction / injection of internal charges (ions or electrons) under the action of external high or low or positive and negative electric fields Realize the stable and reversible adjustment of the optical properties (transmittance, absorptivity, reflectivity, etc.) of the chromogenic film layer to realize the specific spectral modulation performance of the device in a specific spectral range. The appearance is mainly manifested in the high practicality of color and transparency changes chemical devices. Electrochromic devices have broad application prospects in the fields of int...

Claims

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Application Information

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IPC IPC(8): G02F1/1514G02F1/1523
CPCG02F1/1514G02F1/1523G02F1/1525
Inventor 宋云龙李明亚王晓强曲袖杰吴智升
Owner 东北大学秦皇岛分校
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