| 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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Arramel, Arramel
in Cooperation with on an Cooperation-Score of 37%
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
Places of action
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article
Electronic and Optical Modulation of Metal-Doped Hybrid Organic–Inorganic Perovskites Crystals by Post-Treatment Control
Abstract
Recently, considerable interest in the fields of photovoltaics, light emission, and photodetection absorbers has centered on hybrid organic–inorganic perovskites (HOIPs). Here, we report a combined photoluminescence and high-resolution photoemission study to investigate the defect-site passivation of the B-site methylammonium lead bromide perovskites (B site = In3+, Sr2+, and Li+). A distinctive behavior of the optical response is revealed by means of temperature-dependent time-resolved photoluminescence (TR-PL) measurements. Upon mild argon treatment, the initial thermal quenching rate with respect to the radiative transition rate (Γ0/Γv) ratio and thermal quenching activation energy (ΔEq) of Sr-doped MAPbBr3 is reduced by an order of magnitude. The average charge carrier lifetime (τave) of Sr-doped MAPbBr3 after treatment is significantly improved from 36 to 77 ns, respectively. Moreover, the occupied state of metal-doped MAPbBr3 probed by ultraviolet photoemission spectroscopy (UPS) indicates tunable charge transfer based on rational chemical design. Supported by density functional theory, small band gap changes are observed across Sr-, In-, and Li-doped cases. This work improves our understanding of the photophysics of HOIPs with the possible future aim of improving the stability of emergent perovskite materials by post-treatment control.