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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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Arramel, Arramel
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Topics
Publications (11/11 displayed)
- 2024Recent developments in low-dimensional heterostructures of halide perovskites and metal chalcogenides as emergent materials: Fundamental, implementation, and outlookcitations
- 2023Vibrational and Structural Properties of Two-Dimensional Tin Mixed-Halide Perovskitescitations
- 2023Development and challenges in perovskite scintillators for high-resolution imaging and timing applicationscitations
- 2020Molecular functionalization of all-inorganic perovskite CsPbBr3 thin filmscitations
- 2020Lithium-doped two-dimensional perovskite scintillator for wide-range radiation detectioncitations
- 2020Electronic and Optical Modulation of Metal-Doped Hybrid Organic–Inorganic Perovskites Crystals by Post-Treatment Controlcitations
- 2020Reliable and selective lead-ion sensor of sulfur-doped graphitic carbon nitride nanoflakescitations
- 2019Surface molecular doping of all-inorganic perovskite using zethrenes moleculescitations
- 2019Design of perovskite photonic crystals for emission controlcitations
- 2019Selective self-assembly of 2,3-diaminophenazine molecules on MoSe2 mirror twin boundariescitations
- 2016Towards molecular doping effect on the electronic properties of two-dimensional layered materialscitations
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article
Vibrational and Structural Properties of Two-Dimensional Tin Mixed-Halide Perovskites
Abstract
<jats:p>The emergence of two-dimensional (2D) hybrid metal-halide perovskites has garnered significant attentions for optoelectronic devices and light-emitting applications. Since the toxicity of lead-based perovskites could potentially be harmful to the environment, several works have attempted to change the active metal to tin (Sn). Here, we investigate the characterization of (PEA)<jats:sub>2</jats:sub>SnBr<jats:sub>x</jats:sub>I<jats:sub>4-x</jats:sub> mixed halide perovskites using X-ray fluorescence (XRF), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Qualitative XRF analysis suggests the presence of tin, bromine and iodine emissions under the mid-Z and high-Z ranges. In mid-Z range, Br-K<jats:sub>α</jats:sub> peak appeared on 11.96 keV and Br-K<jats:sub>β</jats:sub> was detected on 13.3 keV. Meanwhile Sn-K<jats:sub>α</jats:sub>, I-K<jats:sub>α</jats:sub>, I-K<jats:sub>β1</jats:sub>, and I-K<jats:sub>β2</jats:sub> peaks were detected in high-Z range on 25.24 keV, 28.6 keV, 32.35 keV and 33.11 keV, respectively. Thus, the elemental composition of mixed halide components exhibits an indicative control that bromine-rich or iodine-rich can be synthesized via rational chemical design. XRD pattern display a systematic progression at the peak 5.18° (corresponds to (002) plane), which unambiguously demonstrated the feasibility to tune halide composition in tin-based hybrid perovskite. It also confirms that (2D) hybrid metal-halide with tunable halide have identical structure for both bromine-rich and iodine-rich composition. Furthermore, the 2θ peaks slightly shifted to lower angle with increasing bromine composition. The presence of C−I bonding on ~500 cm<jats:sup>-1</jats:sup> and C-Br bond on ~600 cm<jats:sup>-1</jats:sup> in FTIR spectra highlights the functional group of organic cations. These experimental results promote a foundation to implement compositional engineering on 2D-tin mixed-halide perovskites for optoelectronics and scintillators.</jats:p>