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An all-solid-state electrochromic device and its preparation method

A technology of electrochromic devices and electrochromic layers, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of harsh production conditions, complex sputtering equipment, high production line requirements, etc., and achieve good stability in use, electrochemical The effect of high stability and fast response

Active Publication Date: 2022-02-01
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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  • An all-solid-state electrochromic device and its preparation method
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  • An all-solid-state electrochromic device and its preparation method

Examples

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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

An all-solid-state electrochromic device and a preparation method thereof, comprising a substrate A and a substrate B, wherein a transparent conductive layer A and an anode electrochromic layer are sequentially arranged on the inner side of the substrate A; There is a transparent conductive layer B and a cathode electrochromic layer; a solid electrolyte layer is arranged between the anode electrochromic layer and the cathode electrochromic layer. The preparation method comprises the following steps: (1) processing of substrate A and substrate B; (2) preparation of anode electrochromic layer; (3) preparation of cathode electrochromic layer; (4) preparation of solid electrolyte layer; (5) Preparation of all-solid-state electrochromic devices. The beneficial effects of the present invention are: the method is simple, the ionic conductivity is high, the anti-aging performance is good, and the complementary electrochromic film is used to realize the rapid complementary discoloration of the electrochromic device under low voltage under the premise of ensuring the discoloration requirement, thereby improving the quality of the glass. It is safe to use, has low driving voltage, and has great application prospects.

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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Patent Type & Authority Patents(China)
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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