New PEDOT Derivatives Electrocoated on Silicon Nanowires Protected with ALD Nanometric Alumina for Ultrastable Microsupercapacitors

This work deals with electroactive conducting polymers (ECPs) used as a complementary component on purely capacitive silicon nanowires protected by a 3 nm alumina layer. Accordingly, in this work, we use a fast and simple deposition method to create a pseudocapacitive material based on the electropo...

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Detalles Bibliográficos
Autores principales: Dietrich, Marc, Paillardet, Loïc, Valero, Anthony, Deschanels, Mathieu, Azaïs, Philippe, Gentile, Pascal, Sadki, Saïd
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456597/
https://www.ncbi.nlm.nih.gov/pubmed/36079375
http://dx.doi.org/10.3390/ma15175997
Descripción
Sumario:This work deals with electroactive conducting polymers (ECPs) used as a complementary component on purely capacitive silicon nanowires protected by a 3 nm alumina layer. Accordingly, in this work, we use a fast and simple deposition method to create a pseudocapacitive material based on the electropolymerization in aqueous micellar media (SDS and SDBS 0.01 M) of hydroxymethyl-EDOT (EDOT-OH) onto 3 nm alumina-coated silicon nanowires (Al(3)@SiNWs). The composite material displays remarkable capacitive behavior with a specific capacitance of 4.75 mF·cm(−2) at a current density of 19 µA·cm(−2) in aqueous Na(2)SO(4) electrolyte.

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