Multicolor Transparent‐Conductive‐Electrode Free Electronic Paper based on Steel Foil and Water Electrolyte with pH Indicator Dyes. (24th December 2021)

• Record Type: Journal Article
• Authors: Rozman, Martin
• Is Part Of: Advanced Electronic Materials. Volume 8:Number 4(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-24
• Subjects: aqueous electrolyte -- electronic paper -- inverted sandwich -- pH indicator -- stainless steel; Materials -- Electric properties -- Periodicals; Materials science -- Periodicals; Magnetic materials -- Periodicals; Electronic apparatus and appliances -- Periodicals; 537
• DOI: 10.1002/aelm.202100901
• Languages: English
• ISSNs: 2199-160X

Abstract

Abstract: Electronic paper devices, also known as electrochromic devices, are known for their ability to change color and remain in a particular color state even after the electric power is turned off. Traditional devices such as electrochromic windows use mechanisms such as electrophoresis or intercalation and use special materials such as anhydrous electrolytes and transparent conductive materials (TCMs). As a result, these devices can sometimes be relatively difficult to assemble, especially in developing countries where such materials are difficult to obtain. Recently, some improvements are made by using alternative electrode positioning that do not require TCM. Here, a novel multicolor display module that is recyclable, can be fabricated from readily available materials, and can be scaled according to the desired screen size is presented. The presented device is a semi‐open electrochemical device that uses pH indicator dyes and an aqueous electrolyte solution in combination with readily available stainless steel sheet. Abstract : A novel multicolor electrochromic device that uses no transparent conductive electrodes and uses water‐based electrolyte with added pH dye is developed. Presented multicolor display is easy to refurbish, modify, and recycle, since it uses all stainless steel electrodes. Presented type of device can use a combination of different pH dyes and electrolytes.