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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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Botti, Silvana
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Ni‐Alloyed Copper Iodide Thin Films: Microstructural Features and Functional Performancecitations
- 2024FAIR Data Infrastructure with Enhanced Functionality and Domain Specific Applications
- 2024FAIR Data Infrastructure with Enhanced Functionality and Domain Specific Applications
- 2024Computational prediction and characterization of CuI-based ternary p-type transparent conductors †citations
- 2023Structure prediction and characterization of CuI-based ternary $p$-type transparent conductors
- 2023Optical properties of Ag<sub><i>x</i></sub>Cu<sub>1–<i>x</i></sub>I alloy thin filmscitations
- 2022Computational screening of materials with extreme gap deformation potentialscitations
- 2021Unveiling Planar Defects in Hexagonal Group IV Materials
- 2021Unveiling Planar Defects in Hexagonal Group IV Materialscitations
- 2020Atomic scale structure and its impact on the band gap energy for Cu2Zn(Sn,Ge)Se(4)kesterite alloys
- 2020Atomic scale structure and its impact on the band gap energy for Cu$_{2}$Zn(Sn,Ge)Se$_{4}$ kesterite alloyscitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2005Energy dependence of the exchange-correlation kernel of time-dependent density functional theory: A simple model for solidscitations
- 2005Energy dependence of the exchange-correlation kernel of time-dependent density functional theory: A simple model for solidscitations
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article
Optical properties of Ag<sub><i>x</i></sub>Cu<sub>1–<i>x</i></sub>I alloy thin films
Abstract
<jats:p> We report on the excitonic transition energy E<jats:sub>0</jats:sub> and spin–orbit split-off energy Δ<jats:sub>0</jats:sub> of γ-Ag<jats:sub> x</jats:sub>Cu<jats:sub>1– x</jats:sub>I alloy thin films studied by using reflectivity measurements at temperatures between 20 K and 290 K. The observed bowing behavior of the E<jats:sub>0</jats:sub> transition as a function of the alloy composition is explained based on first-principles band structure calculations in terms of different physical and chemical contributions within the description of ordered alloys. The spin–orbit coupling is found to increase from a value of 640 meV for CuI to approximately 790 meV for AgI. Furthermore, we show that the temperature-dependent bandgap shift between 20 K and 290 K decreases with increasing Ag-content from 25 meV for CuI to 6 meV for AgI. We attribute this behavior mostly to changes in the contribution of thermal lattice expansion to the bandgap shift. </jats:p>