| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gentile, Pascal
CEA Grenoble
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022New PEDOT Derivatives Electrocoated on Silicon Nanowires Protected with ALD Nanometric Alumina for Ultrastable Microsupercapacitorscitations
- 2022New PEDOT derivatives electrocoated on szilicon nanowires protected with ALD nanometric alumina for ultrastable microsupercapacitorscitations
- 2021Thermally propagated Al contacts on SiGe nanowires characterized by electron beam induced current in a scanning transmission electron microscope
- 2021Thermally propagated Al contacts on SiGe nanowires characterized by electron beam induced current in a scanning transmission electron microscope
- 2020Impact of droplet composition on the nucleation rate and morphology of vapor-liquid-solid GeSn nanowirescitations
- 2019In Situ Transmission Electron Microscopy Analysis of Aluminum–Germanium Nanowire Solid-State Reactioncitations
- 2017Tailoring Strain and Morphology of Core–Shell SiGe Nanowires by Low-Temperature Ge Condensationcitations
- 2015An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitorscitations
- 2015An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitorscitations
- 2014Hybrid nanocomposites based on conducting polymer and silicon nanowires for photovoltaic applicationcitations
- 2011Hidden defects in silicon nanowirescitations
- 2009Emerging Nanotechnology for integration of Nanostructures in Nanoelectronic devicescitations
- 2008Control of gold surface diffusion on Si nanowirescitations
Places of action
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article
An innovative 3-D nanoforest heterostructure made of polypyrrole coated silicon nanotrees for new high performance hybrid micro-supercapacitors
Abstract
In this work, an innovative 3-D symmetric micro-supercapacitor based on polypyrrole (PPy) coated silicon nanotree (SiNTr) hybrid electrodes has been fabricated. First, SiNTrs were grown on silicon substrates by chemical vapor deposition (CVD) and then via an electrochemical method, the conducting polymer coating was deposited onto the surface of SiNTr electrodes. This study illustrates the excellent electrochemical performance of a hybrid micro-supercapacitor device using the synergistic combination of both PPy as the electroactive pseudo-capacitive material and branched SiNWs as the electric double layer capacitive material in the presence of an aprotic ionic liquid (N-methyl-N-propylpyrrolidinium bis(trifluoromethylsulfonyl)imide; PYR<inf>13</inf>TFSI) as the electrolyte. The hybrid device exhibited a specific capacitance as high as ∼14 mF cm-2 and an energy density value of ∼15 mJ cm-2 at a wide cell voltage of 1.5 V using a high current density of 1 mA cm-2. Furthermore, a remarkable cycling stability after thousands of galvanostatic charge-discharge cycles with a loss of approximately 30% was obtained. The results reported in this investigation demonstrated that PPy coated SiNTr-based micro-supercapacitors exhibit the best performances among hybrid micro-supercapacitors made of silicon nanowire electrodes grown by CVD in terms of specific capacitance and energy density.