| 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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Junquera, Javier
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Topics
Publications (6/6 displayed)
- 2022Layered gallium sulfide optical properties from monolayer to CVD crystalline thin filmscitations
- 2022Inherent Spin–Polarization Coupling in a Magnetoelectric Vortexcitations
- 2018Emergent chirality in the electric polarization texture of titanate superlatticescitations
- 2016Positive Effect of an Internal Depolarization Field in Ultrathin Epitaxial Ferroelectric Filmscitations
- 2010Nonlinear optical properties of TeO$_2$ crystalline phases from first principlescitations
- 2010Nonlinear optical properties of TeO$_2$ crystalline phases from first principles ...
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article
Layered gallium sulfide optical properties from monolayer to CVD crystalline thin films
Abstract
<jats:p>Interest in layered van der Waals semiconductor gallium monosulfide (GaS) is growing rapidly because of its wide band gap value between those of two-dimensional transition metal dichalcogenides and of insulating layered materials such as hexagonal boron nitride. For the design of envisaged optoelectronic, photocatalytic and photonic applications of GaS, the knowledge of its dielectric function is fundamental. Here we present a combined theoretical and experimental investigation of the dielectric function of crystalline <jats:italic>2H-</jats:italic>GaS from monolayer to bulk. Spectroscopic imaging ellipsometry with micron resolution measurements are corroborated by first principle calculations of the electronic structure and dielectric function. We further demonstrate and validate the applicability of the established dielectric function to the analysis of the optical response of <jats:italic>c</jats:italic>-axis oriented GaS layers grown by chemical vapor deposition (CVD). These optical results can guide the design of novel, to our knowledge, optoelectronic and photonic devices based on low-dimensional GaS.</jats:p>