New PEDOT derivatives electrocoated on szilicon nanowires protected with ALD nanometric alumina for ultrastable microsupercapacitors - Archive ouverte HAL Access content directly
Journal Articles Materials Year : 2022

New PEDOT derivatives electrocoated on szilicon nanowires protected with ALD nanometric alumina for ultrastable microsupercapacitors

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Abstract

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 (Al3@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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Dates and versions

cea-03940248 , version 1 (16-01-2023)

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Attribution - CC BY 4.0

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Marc Dietrich, Loïc Paillardet, Anthony Valero, Mathieu Deschanels, Philippe Azaïs, et al.. New PEDOT derivatives electrocoated on szilicon nanowires protected with ALD nanometric alumina for ultrastable microsupercapacitors. Materials, 2022, 15 (17), pp.5997. ⟨10.3390/ma15175997⟩. ⟨cea-03940248⟩
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