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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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| Ali, M. A. |
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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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Litvin, Aleksandr P.
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Topics
Publications (7/7 displayed)
- 2024Near-infrared two-photon excited photoluminescence from Yb3+-doped CsPbClxBr3−x perovskite nanocrystals embedded into amphiphilic silica microspherescitations
- 2023Anion-assisted Yb3+ and Mn2+ doping of 0D and 2D lead halide perovskite nanostructurescitations
- 2021Carbon Nanoparticles as Versatile Auxiliary Components of Perovskite-Based Optoelectronic Devicescitations
- 2020Tunable Mie Resonances of Tin-based Iodide Perovskite Islandlike Films with Enhanced Infrared Photoluminescencecitations
- 2019Ternary Composites with PbS Quantum Dots for Hybrid Photovoltaicscitations
- 20183D superstructures with an orthorhombic lattice assembled by colloidal PbS quantum dotscitations
- 2017Photoluminescence of Lead Sulfide Quantum Dots of Different Sizes in a Nanoporous Silicate Glass Matrixcitations
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article
Photoluminescence of Lead Sulfide Quantum Dots of Different Sizes in a Nanoporous Silicate Glass Matrix
Abstract
The optical properties of lead sulfide quantum dots (QDs) of different sizes embedded in a nanoporous silicate glass matrix (NSM) are investigated by steady-state and transient photoluminescence spectroscopy. The use of this matrix allows the fabrication of samples with reproducible optical characteristics, for both isolated and close-packed QDs. Low-temperature PL analysis of isolated QDs with sizes of 3.7 and 4.5 nm shows that the coefficient of temperature shift of the PL position changes sign with reducing QD size because of size-dependent contributions from thermal expansion, mechanical strain, and electron-phonon coupling. The PL intensity is determined by size-dependent splitting of the lowest energy electronic state. (Graph Presented).