| 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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Kaiser, Waldemar
Technical University of Munich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Reaction Mechanism of Hydrogen Generation and Nitrogen Fixation at Carbon Nitride/Double Perovskite Heterojunctionscitations
- 2023Cu/Ag–Sb–I Rudorffite Thin Films for Photovoltaic Applicationscitations
- 2023Band gap tuning through cation and halide alloying in mechanochemically synthesized Cs3(Sb1−xBix)2Br9 and Cs3Sb2(I1−xBrx)9 solid solutionscitations
- 2023Synergistic Role of Water and Oxygen Leads to Degradation in Formamidinium-Based Halide Perovskites
- 2023Synergistic Role of Water and Oxygen Leads to Degradation in Formamidinium-Based Halide Perovskitescitations
- 2023Tuning Structure and Excitonic Properties of 2D Ruddlesden–Popper Germanium, Tin, and Lead Iodide Perovskites via Interplay between Cationscitations
- 2023Plasma‐Driven Atomic‐Scale Tuning of Metal Halide Perovskite Surfaces: Rationale and Photovoltaic Applicationcitations
- 2023Band gap tuning through cation and halide alloying in mechanochemically synthesized Cs<sub>3</sub>(Sb<sub>1−<i>x</i></sub>Bi<sub><i>x</i></sub>)<sub>2</sub>Br<sub>9</sub> and Cs<sub>3</sub>Sb<sub>2</sub>(I<sub>1−<i>x</i></sub>Br<sub><i>x</i></sub>)<sub>9</sub> solid solutionscitations
- 2023Band Gap Tuning Through Cation and Halide Alloying in Mechanochemical Synthesized Cs3(Sb1-xBix)2Br9 and Cs3Sb2(I1-xBrx)9 Solid Solutionscitations
- 2022Reaction Mechanism of Photocatalytic Hydrogen Production at Water/Tin Halide Perovskite Interfacescitations
- 2022Heterovalent Tin Alloying in Layered MA3Sb2I9 Thin Films: Assessing the Origin of Enhanced Absorption and Self-Stabilizing Charge Statescitations
- 2022Defect Formation and Healing at Grain Boundaries in Lead-Halide Perovskitescitations
Places of action
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document
Band Gap Tuning Through Cation and Halide Alloying in Mechanochemical Synthesized Cs3(Sb1-xBix)2Br9 and Cs3Sb2(I1-xBrx)9 Solid Solutions
Abstract
<jats:p>Modulation of optical properties of lead-free defective perovskites can contribute to design optimized materials for several applications ranging from photodetection to photocatalysis. Here, we explored two novel alloying strategies on Cs3Sb2Br9, by preparing by mechanochemical synthesis Sb/Bi and Br/I mixed systems. An unexpected band gap bowing has been observed in alloyed Sb/Bi compositions, showing lower absorption edges with respect to pure compounds. Such behavior has been computationally modelled suggesting the presence of local aggregates as the source of such reduction of the band gap. Further modulation of the optical properties has been achieved by halide alloying showing a progressive red-shift by increasing the iodide content. In both cases a full solubility at the solid state has been determined by means of diffraction and Raman spectroscopy. Overall, this study proposes and rationalizes doping strategies in the Cs3Sb2Br9 defective perovskite achieved through the use of a sustainable synthetic procedure such as mechanochemistry.</jats:p>