Electrochromic device based on multilayer functional film and preparation method thereof

A technology of electrochromic devices and thin films, applied in coatings, instruments, metal material coating processes, etc., can solve problems such as poor adhesion and poor stability, achieve low cost, friendly human visual experience, and reduce costs Effect

Active Publication Date: 2020-01-07
JINAN UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems existing in the prior art, the present invention proposes an electrochromic device based on a multilayer functional film, adopts an electrochromic device structure with multiple color-changing functional layers, and combines the advantages of multiple color-changing functional layer materials to achieve Solve the problems of poor adhesion and poor stability of the electrochromic device of molybdenum oxide, and realize the stability of the device, electrochromic response speed and light adjustment range by integrating the advantages of several functional films. Improve the overall performance of color-changing devices and reduce device manufacturing costs

Method used

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  • Electrochromic device based on multilayer functional film and preparation method thereof
  • Electrochromic device based on multilayer functional film and preparation method thereof
  • Electrochromic device based on multilayer functional film and preparation method thereof

Examples

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Embodiment 1

[0033] Such as figure 1As shown, the multilayer functional thin film electrochromic device of this embodiment comprises in turn: a base layer 1, a first transparent electrode layer 2 disposed on the base layer 1, a first cathodic discoloration function disposed on the first transparent electrode layer 2 layer 3, the second cathodic color-changing functional layer 4 arranged on the first cathodic color-changing functional layer 3, the electrolyte layer 5 arranged on the first cathodic color-changing functional layer 4, the anode color-changing functional layer 6 arranged on the electrolyte layer 5 and The second transparent electrode layer 7 disposed on the anode color-changing functional layer 6 . In addition, for the convenience of the device during actual use, an electrode connection port 8 is provided beside the first transparent electrode layer 2 , and an electrode connection port 9 is provided beside the second transparent electrode layer 7 .

[0034] Each structural lay...

Embodiment 2

[0044] Such as figure 2 As shown, the structure of this embodiment is similar to that of Example 1, except that a third cathodic color-changing functional layer 10 is added between the second cathodic color-changing functional layer 4 and the electrolyte layer 5, which is used to convert the second cathodic color-changing functional layer 10 MoO of cathodic color function layer 4 3 Separated from the electrolyte layer 5, slowing down the ion pair MoO from the electrolyte layer 5 3 Layer impact, so that the stability of the second cathodic color-changing functional layer 4 is better. At the same time, since the third cathodic color-changing functional layer 10 is also made of tungsten material, the film adhesion of the second cathodic color-changing functional layer 4 is further improved.

[0045] The preparation method of this embodiment is the same as that of Example 1, except that the third cathodic color-changing functional layer 10 is prepared on the second cathodic colo...

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Abstract

The invention discloses an electrochromic device based on a multilayer functional film and a preparation method thereof. The device comprises a first transparent electrode layer, a plurality of cathode color-changing functional layers, an electrolyte layer, an anode color-changing functional layer and a second transparent electrode layer which are connected in sequence. The first transparent electrode layer is arranged on the opposite outer surfacesof the cathode color-changing functional layers; and the second transparent electrode layer is arranged on the opposite outer surface of the anodecolor-changing functional layer. The plurality of cathode color-changing functional layers include a main cathode color-changing functional layer made of a MoO3 material and auxiliary cathode color-changing functional layers coating the opposite outer surface of the main cathode color-changing functional layer; and the thickness of the main cathode color-changing functional layer is greater than that of each auxiliary cathode color-changing functional layer. According to the invention, the advantages of the plurality of color-changing functional layer materials are fused, so that the problemsof poor adhesiveness and poor stability of an electrochromic device of molybdenum oxide are solved; and thus the improvement of comprehensive properties such as the stability, electrochromic responsespeed, and light modulation range of the manufactured device is realized and the manufacturing cost of the device is lowered.

Description

technical field [0001] The invention relates to electrochromic device technology, in particular to an electrochromic device based on a multilayer functional thin film and a preparation method thereof. Background technique [0002] Electrochromism is a phenomenon in which the optical properties of a material (reflectivity, transmittance, absorptivity, etc.) undergo a stable and reversible color change under the action of an applied electric field, and 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. [0003] Electrochromic devices have the ability to absorb and transmit light under the action of an electric field, and can selectively absorb or reflect external heat radiation and internal heat diffusion, reducing office buildings and residential buildings to keep cool in summer and keep warm i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1523G02F1/155G02F1/153C23C14/35C23C14/08C23C14/00
CPCG02F1/1523G02F1/155G02F1/153C23C14/352C23C14/083C23C14/0036C23C14/085
Inventor 杨恢东彭斯冉邵海平张婧妍夏锦辉宋香荣
Owner JINAN UNIVERSITY
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