Flexible electrochromic devices prepared on ultra-thin ITO glass
| Autor: | Begüm Bozkaya, Lukas Niklaus, Guinevere A. Giffin, Marco Schott, Christine Müller |
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| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
02 engineering and technology Substrate (electronics) 010402 general chemistry Electrochromic devices 01 natural sciences Dip-coating optoelectronic property chemistry.chemical_compound metallo-supramolecular polymers (MEPEs) General Materials Science Thin film wet-chemical deposition ITO-coated ultra-thin and flexible glass electrochromic devices (ECDs) Prussian blue business.industry 021001 nanoscience & nanotechnology 0104 chemical sciences Indium tin oxide Glazing chemistry Chemistry (miscellaneous) Electrochromism Optoelectronics 0210 nano-technology business |
| Popis: | Electrochromic devices (ECDs) containing iron-based metallo-supramolecular polymers (Fe-MEPE) and Prussian blue (PB) as active electrode materials, a polymer electrolyte and flexible ultra-thin indium tin oxide (ITO) glass as transparent conductive substrate are demonstrated here. The electrochromic Fe-MEPE and PB thin films were deposited on ultra-thin ITO glass by means of dip coating and electrodeposition, respectively, and characterized optically and (spectro-)electrochemically. By applying a low voltage of 2.5 V/−0.5 V, the Fe-MEPE/PB ECDs can be reversibly switched from a blue-colored dark state to a nearly colorless bright state with a visible light transmittance (τv) change from 8% to 58%. The devices exhibit a fast response for decoloration/coloration and good cycling stability tested over 250 switching cycles without any substantial loss of optical contrast. Thus, these ECDs based on ultra-thin glass are very attractive for flexible, lightweight, and low-power electrochromic applications, e.g., in architectural or automotive glazing, aircraft, marine, home appliances, and displays. |
| Databáze: | OpenAIRE |
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