All-solid-state electrochromic device having controllable color-changing area and method for preparing same

Abstract

The invention discloses an all-solid-state electrochromic device having a controllable color-changing area and a method for preparing the same. The method is characterized in that: patterns are transferred on a conductive glass pane by means of films and dry films with the thickness being 30-50 [mu]m; thin-strip-shaped dry films with the width being 1-2 mm and with the height identical to the film thickness are formed on the conductive surface after exposure and development; an electrochromism layer (EC), an ion conductive layer (IC) and an ion storage (counter electrode) layer (CE) are sequentially plated on the substrate through a magnetron sputtering manner; the left dry film and a transparent conductive layer are etched by two etching solutions respectively; another glass pane of which a transparent conductive layer at the corresponding position of the other surface is etched is completely packaged through packaging technology, and therefore the all-solid-state electrochromic device having a controllable color-changing area is obtained. The all-solid-state electrochromic device prepared through the method provided by the invention can control the transmittance of color-changing glass, can control the color-changing area, is easy to package, and has a long service lifetime.

Description

technical field [0001] The invention relates to a preparation method of an all-solid-state electrochromic device with low cost and controllable transmittance and discoloration area. Background technique [0002] Electrochromism (abbreviated as EC) materials can undergo reversible light absorption or light scattering under the action of an external electric field or current, thereby producing reversible color changes. The optoelectronic devices prepared using this material are called electrochromic devices (Electrochromicdevices) , abbreviated as ECDs). Since S.K.Deb first discovered WO in 1969 3 Since the electrochromic phenomenon of thin films, people have gradually discovered and prepared many materials with electrochromic properties, making electrochromic materials have very broad applications in the fields of display devices, automobiles, military camouflage, smart materials, and energy-saving building materials. prospect. [0003] Devices that apply electrochromic ma...

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Problems solved by technology

[0004] At present, although the electrochromic smart window can intelligently adjust the transmittance of the color-changing glass through color changes, it cannot adjust the transmittance area at any time like blinds.

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