Journal
MATERIALS
Volume 15, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ma15175997
Keywords
pseudo-supercapacitors; electroactive conducting polymers; SiNWs; 3D nanostructured electrodes; ALD; SDS and SDBS surfactants; PEDOT derivatives
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Funding
- Research National Agency
- ECOPE Project [19-ASTR0026-01]
- DGA, Ministere de la defense
- Commisariat a l'Energie Atomique et aux Energies Alternatives (CEA) from Grenoble
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This study utilizes a fast and simple deposition method to create a pseudocapacitive material based on EDOT-OH on alumina-coated silicon nanowires, displaying remarkable capacitive behavior in aqueous Na2SO4 electrolyte.
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 center dot cm(-2) at a current density of 19 mu A center dot cm(-2) in aqueous Na2SO4 electrolyte.
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