Use of different metal oxide coatings in stainless steel based ECDs for smart textiles

Rozman, Martin (avtor), Cetin, Nikolina (avtor), Bren, Urban (avtor), Lukšič, Miha (avtor)

Electrochromism is the ability of a material to selectively change its coloration under the influence of an external electric current/potential and maintain it even after the power source has been disconnected. Devices that use such a mechanism are known as electrochromic devices (ECDs). Over the years, significant effort has been invested into the development of flexible ECDs. Such electrochromic tapes or fibers can be used as smart textiles. Recently, we utilized a novel geometrical approach in assembling electrochromic tapes which does not require the use of optically transparent electrodes. The so-called inverted sandwich ECD configuration can employ various colorchanging mechanisms, e.g., intercalation, redox reactions of electrolytes or reactions on electrode surfaces. One of the most frequently used electrochromic metal oxides is WO$_3$. However, other metal oxides with different coloration responses also exist. In this paper, we explore the use of V$_2$O$_5$ and TiO$_2$ in metal-tape-based ECDs in the inverted sandwich configuration and compare their performance with WO$_3$-based devices. Morphological features of metal oxide thin layers were investigated with scanning electron microscopy (SEM), and the performance of the tapes was investigated electrochemically and spectroscopically. We demonstrate that well-established preparation techniques (e.g., sol–gel synthesis) along with coating approaches (e.g., dipping) are adequate to prepare optically nontransparent fiber electrodes. Depending on the metal oxide, flexible electrochromic fiber devices exhibiting different coloration patterns can be assembled. Devices with TiO$_2$ showed little coloration response, while much better performance was achieved in the case of V$_2$O$_5$ and WO$_3$ ECDs.

• Jezik: Angleški jezik
• Ključne besede: electrochromism, thin film, metal oxide, intercalation, inverted sandwich, stainless steel
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 11 str.
• Številčenje: Vol. 10, iss. 20, art. 2529
• PID: 20.500.12556/RUL-136227
• UDK: 544.5/.6
• ISSN pri članku: 2079-9292
• DOI: 10.3390/electronics10202529
• COBISS.SI-ID: 81086211
• Datum objave v RUL: 20.04.2022

Gradivo je del revije

• Naslov: Electronics
• Skrajšan naslov: Electronics
• Založnik: MDPI
• ISSN: 2079-9292
• COBISS.SI-ID: 523068953

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 17.10.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: elektrokromiranje, interkalacija, nerjaveče jeklo

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P1-0201
• Naslov: Fizikalna kemija

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J1-2471
• Naslov: Kemijska karcinogeneza: mehanistični vpogled