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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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Baranov, Alexander V.
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Topics
Publications (9/9 displayed)
- 2020Influence of the solvent environment on luminescent centers within carbon dotscitations
- 2020Strongly Luminescent Composites Based on Carbon Dots Embedded in a Nanoporous Silicate Glasscitations
- 2020Stable Luminescent Composite Microspheres Based on Porous Silica with Embedded CsPbBr3 Perovskite Nanocrystalscitations
- 2019Ternary Composites with PbS Quantum Dots for Hybrid Photovoltaicscitations
- 20183D superstructures with an orthorhombic lattice assembled by colloidal PbS quantum dotscitations
- 2017Optical Anisotropy of Topologically Distorted Semiconductor Nanocrystalscitations
- 2017Photoluminescence of Lead Sulfide Quantum Dots of Different Sizes in a Nanoporous Silicate Glass Matrixcitations
- 2017Excitons in gyrotropic quantum-dot supercrystalscitations
- 2016Excitonic energy bands formation in Quantum dot supercrystals
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article
Excitons in gyrotropic quantum-dot supercrystals
Abstract
<p>We use quantum theory of molecular crystals to study collective excitations (excitons) of gyrotropic quantum-dot (QD) supercrystals with complex lattices consisting of two or more sublattices of semiconductor QDs. We illustrate the potentials of our approach by applying it to analytically calculate the linear permittivity tensor of supercrystals with two QDs per unit cell. The spatial dispersions of exciton energy bands and permittivity tensor components are examined in detail for two-dimensional supercrystals with a square lattice, which are relatively easy to fabricate in practice. Our results provide a systematic and versatile framework for the engineering of dispersion properties of gyrotropic QD supercrystals and for the analysis of their absorption and circular dichroism spectra.</p>