| 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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Mariotti, Davide
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Low temperature plasma‐assisted double anodic dissolution: a new approach for the synthesis of GdFeO3 perovskite nanoparticlescitations
- 2024Low temperature plasma‐assisted double anodic dissolution: a new approach for the synthesis of GdFeO 3 perovskite nanoparticlescitations
- 2024Stability in Photoluminescence and Photovoltaic Properties of Formamidinium Lead Iodide Quantum Dots
- 2023A Single‐Step Process to Produce Carbon Nanotube‐Zinc Compound Hybrid Materialscitations
- 2021Carrier extraction from metallic perovskite oxide nanoparticlescitations
- 2021Understanding plasma–ethanol non-equilibrium electrochemistry during the synthesis of metal oxide quantum dotscitations
- 2020Tuning the Bandgap Character of Quantum‐Confined Si–Sn Alloyed Nanocrystalscitations
- 2019Nanostructured perovskite solar cells
- 2018Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystalscitations
- 2018Low-Loss and Tunable Localized Mid-Infrared Plasmons in Nanocrystals of Highly Degenerate InNcitations
- 2018Microplasma-assisted electrochemical synthesis of Co3O4 nanoparticles in absolute ethanol for energy applicationscitations
- 2017Zero-dimensional methylammonium iodo bismuthate solar cells and synergistic interactions with silicon nanocrystalscitations
- 2017Charge carrier localised in zero-dimensional (CH 3 NH 3 ) 3 Bi 2 1 9 clusterscitations
- 2017Charge carrier localised in zero-dimensional (CH3NH3)3Bi219 clusterscitations
- 2017Charge carrier localised in zero-dimensional (CH3NH3)3Bi219 clusterscitations
- 2017Charge carrier localised in zero-dimensional (CH3NH3)3Bi2I9 clusterscitations
- 2013Improved Optoelectronic Properties of Silicon Nanocrystals/Polymer Nanocomposites by Microplasma-Induced Liquid Chemistrycitations
Places of action
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article
Tuning the Bandgap Character of Quantum‐Confined Si–Sn Alloyed Nanocrystals
Abstract
<jats:title>Abstract</jats:title><jats:p>Nanocrystals in the regime between molecules and bulk give rise to unique electronic properties. Here, a thorough study focusing on quantum‐confined nanocrystals (NCs) is provided. At the level of density functional theory an approximate (quasi) band structure which addresses both the molecular and bulk aspects of finite‐sized NCs is calculated. In particular, how band‐like features emerge with increasing particle diameter is shown. The quasiband structure is used to discuss technological‐relevant direct bandgap NCs. It is found that ultrasmall <jats:styled-content>Sn</jats:styled-content> NCs have a direct bandgap in their at‐nanoscale‐stable α‐phase and for high enough <jats:styled-content>Sn</jats:styled-content> concentration (≈41%) alloyed <jats:styled-content>Si–Sn</jats:styled-content> NCs transition from indirect to direct bandgap semiconductors. The calculations strongly support recent experiments suggesting a direct bandgap for these systems. For a quantitative comparison many‐body <jats:italic>GW</jats:italic> + Bethe–Salpeter equation (BSE) calculations are performed. The predicted optical gaps are close to the experimental data and the calculated absorbance spectra compare well with the corresponding measurements.</jats:p>