| 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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Pavlenko, Mykola
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2020Enhancing photocatalytic performance and solar absorption by schottky nanodiodes heterojunctions in mechanically resilient palladium coated TiO2/Si nanopillars by atomic layer depositioncitations
- 2020Enhancing photocatalytic performance and solar absorption by schottky nanodiodes heterojunctions in mechanically resilient palladium coated TiO2/Si nanopillars by atomic layer depositioncitations
- 2020Porous Silicon‐Zinc Oxide Nanocomposites Prepared by Atomic Layer Deposition for Biophotonic Applicationscitations
- 2020Porous Silicon-Zinc Oxide Nanocomposites Prepared by Atomic Layer Deposition for Biophotonic Applicationscitations
- 2019Effect of porous silicon substrate on structural, mechanical and optical properties of MOCVD and ALD ruthenium oxide nanolayerscitations
- 2017Silicon/TiO<inf>2</inf> core-shell nanopillar photoanodes for enhanced photoelectrochemical water oxidationcitations
- 2015Tailoring the structural, optical, and photoluminescence properties of porous silicon/TiO<inf>2</inf> nanostructurescitations
- 2015Structural and XPS studies of PSi/TiO2 nanocomposites prepared by ALD and Ag-assisted chemical etchingcitations
Places of action
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article
Silicon/TiO<inf>2</inf> core-shell nanopillar photoanodes for enhanced photoelectrochemical water oxidation
Abstract
<p>Nanostructured Si/TiO<sub>2</sub> core-shell nanopillar (NP) photoanodes were synthesized to overcome photodegradation stability of Si and to enhance the efficiency for photoelectrochemical water splitting. The core-shell structures were fabricated by atomic layer deposition of TiO<sub>2</sub> onto Si nanopillars synthesized by metal-assisted chemical etching and nanosphere lithography. Scanning electron microscopy, transmission electron microscopy, Raman and reflectance spectroscopies were utilized to characterize fabricated photoanodes. The obtained Si/TiO<sub>2</sub> core-shell NP arrays exhibit less than 6% of optical reflectance in UV and visible region, providing good optical absorption. Photoelectrochemical (PEC) water oxidation of fabricated photoanodes was studied. We showed that n-Si/n-TiO<sub>2</sub> NP exhibited a larger photocurrent than p-Si/n-TiO<sub>2</sub> due to a barrier at the heterojunction. Optimal morphological parameter of Si/TiO<sub>2</sub> NP for enhanced PEC water splitting were found. We demonstrated its enhanced PEC performance with a photocurrent density of 1.5 mA/cm<sup>2</sup> under simulated solar radiation with intensity of 100 mW/cm<sup>2</sup>. The relationship between the PEC performance and the electrolyte pH was also discussed. The design of the geometry of Si/TiO<sub>2</sub> core-shell NP arrays offers a new approach for preparing stable and highly efficient photoanodes for PEC water splitting.</p>