A First Outlook of Sputtered FeWO <sub>4</sub> ...
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Article dans une revue scientifique: Article original
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Title :
A First Outlook of Sputtered FeWO <sub>4</sub> Thin Films for Micro-Supercapacitor Electrodes
Author(s) :
Buvat, Gaetan [Auteur]
Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Iadecola, Antonella [Auteur]
Blanchard, Florent [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Brousse, Thierry [Auteur]
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lethien, Christophe [Auteur]
Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Iadecola, Antonella [Auteur]
Blanchard, Florent [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Brousse, Thierry [Auteur]
Roussel, Pascal [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lethien, Christophe [Auteur]

Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Journal title :
Journal of The Electrochemical Society
Abbreviated title :
J. Electrochem. Soc.
Volume number :
168
Pages :
030524
Publication date :
2021-03-01
ISSN :
0013-4651, 1945-7111
HAL domain(s) :
Chimie/Chimie inorganique
English abstract : [en]
The next generation of Internet of Things devices requires micro-supercapacitors operating at high voltage which is difficult to achieve using symmetrical design. Thus, their fabrication in an asymmetric configuration is ...
Show more >The next generation of Internet of Things devices requires micro-supercapacitors operating at high voltage which is difficult to achieve using symmetrical design. Thus, their fabrication in an asymmetric configuration is mandatory. While MnO 2 is well-established as positive electrode, the scarcity of existing efficient materials able to be used at the negative side drives the research towards new promising materials. Since few years, a new class of oxide materials, named multicationic oxides, were demonstrated to be attractive solutions as bulk electrodes for electrochemical capacitor. Among them, the wolframite-type FeWO 4 oxide was proposed as an interesting negative electrode material for asymmetric FeWO 4 /MnO 2 electrochemical capacitors. The present paper reports for the first time on the successful thin film synthesis of such iron-tungstate oxide films by reactive DC magnetron sputtering, a deposition method widely used in the semiconductor industry to manufacture micro-devices. The pseudocapacitive behaviour documented at the bulk scale is preserved at the thin film level as well, and opens-up the possibility to use FeWO 4 in the next generations of micro-supercapacitors.Show less >
Show more >The next generation of Internet of Things devices requires micro-supercapacitors operating at high voltage which is difficult to achieve using symmetrical design. Thus, their fabrication in an asymmetric configuration is mandatory. While MnO 2 is well-established as positive electrode, the scarcity of existing efficient materials able to be used at the negative side drives the research towards new promising materials. Since few years, a new class of oxide materials, named multicationic oxides, were demonstrated to be attractive solutions as bulk electrodes for electrochemical capacitor. Among them, the wolframite-type FeWO 4 oxide was proposed as an interesting negative electrode material for asymmetric FeWO 4 /MnO 2 electrochemical capacitors. The present paper reports for the first time on the successful thin film synthesis of such iron-tungstate oxide films by reactive DC magnetron sputtering, a deposition method widely used in the semiconductor industry to manufacture micro-devices. The pseudocapacitive behaviour documented at the bulk scale is preserved at the thin film level as well, and opens-up the possibility to use FeWO 4 in the next generations of micro-supercapacitors.Show less >
Audience :
Non spécifiée
Popular science :
Non
Administrative institution(s) :
CNRS
Centrale Lille
ENSCL
ISEN
Institut Catholique Lille
Univ. Artois
Univ. Valenciennes
Université de Lille
Centrale Lille
ENSCL
ISEN
Institut Catholique Lille
Univ. Artois
Univ. Valenciennes
Université de Lille
Collections :
Research team(s) :
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)
Submission date :
2022-03-24T09:02:44Z
2022-03-24T09:49:43Z
2022-03-24T09:49:43Z
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