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

Autor: Dietrich M; CEA, Grenoble INP, CNRS IRIG-SyMMES UMR 5819, University Grenoble Alpes, F-38000 Grenoble, France.; CEA, Grenoble INP, IRIG-Pheliqs, University Grenoble Alpes, F-38000 Grenoble, France., Paillardet L; CEA, Grenoble INP, CNRS IRIG-SyMMES UMR 5819, University Grenoble Alpes, F-38000 Grenoble, France.; CEA, Grenoble INP, IRIG-Pheliqs, University Grenoble Alpes, F-38000 Grenoble, France., Valero A; CEA, Grenoble INP, CNRS IRIG-SyMMES UMR 5819, University Grenoble Alpes, F-38000 Grenoble, France.; CEA, Grenoble INP, IRIG-Pheliqs, University Grenoble Alpes, F-38000 Grenoble, France., Deschanels M; CEA, Grenoble INP, CNRS IRIG-SyMMES UMR 5819, University Grenoble Alpes, F-38000 Grenoble, France., Azaïs P; CEA-LITEN-DEHT, University Grenoble Alpes, F-38000 Grenoble, France., Gentile P; CEA, Grenoble INP, IRIG-Pheliqs, University Grenoble Alpes, F-38000 Grenoble, France., Sadki S; CEA, Grenoble INP, CNRS IRIG-SyMMES UMR 5819, University Grenoble Alpes, F-38000 Grenoble, France.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2022 Aug 30; Vol. 15 (17). Date of Electronic Publication: 2022 Aug 30.
DOI: 10.3390/ma15175997
Abstrakt: 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.
Databáze: MEDLINE
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