| 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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Batuk, Maria
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2023Impact of anionic ordering on the iron site distribution and valence states in oxyfluoride Sr2FeO3+xF1–x (x = 0.08, 0.2) with a layered perovskite networkcitations
- 2022The crystal and defect structures of polar KBiNb 2 O 7
- 2022The crystal and defect structures of polar KBiNb2O7
- 2022Topotactic redox cycling in SrFeO 2.5+δ explored by 3D electron diffraction in different gas atmospherescitations
- 2021Determination of Spinel Content in Cycled Li1.2Ni0.13Mn0.54Co0.13O2 Using Three-Dimensional Electron Diffraction and Precession Electron Diffractioncitations
- 2021Photoresistive gas sensor based on nanocrystalline ZnO sensitized with colloidal perovskite CsPbBr₃ nanocrystalscitations
- 2020Insight into the Mechanisms of High Activity and Stability of Iridium Supported on Antimony-Doped Tin Oxide Aerogel for Anodes of Proton Exchange Membrane Water Electrolyzerscitations
- 2020Magnetic ordering in the layered Cr(II) oxide arsenides Sr₂CrO₂Cr₂As₂ and Ba₂CrO₂Cr₂As₂citations
- 2018MnFe0.5Ru0.5O3: An Above-Room-Temperature Antiferromagnetic Semiconductorcitations
- 2017Grain-boundary engineering for aging and slow-crack-growth resistant zirconiacitations
- 2017Synthesis of MAX Phases in the Zr-Ti-Al-C Systemcitations
- 2016Effect of cation dopant radius on the hydrothermal stability of tetragonal zirconia: Grain boundary segregation and oxygen vacancy annihilationcitations
- 2016Strength, toughness and aging stability of highly-translucent Y-TZP ceramics for dental restorations
- 2015Effect of selenium content of CuInSex alloy nanopowder precursors on recrystallization of printed CuInSe2 absorber layers during selenization heat treatmentcitations
- 2015Effect of the burn-out step on the microstructure of the solution-processed Cu(In,Ga)Se-2 solar cellscitations
- 2015Process variability in Cu2ZnSnSe4 solar cell devices: Electrical and structural investigationscitations
- 2015Highly-translucent, strong and aging-resistant 3Y-TZP ceramics for dental restoration by grain boundary segregationcitations
- 2014Facile Synthesis of Ba1–xKxFe2As2 Superconductors via Hydride Routecitations
- 2014Mechanical synthesis of high purity Cu-In-Se alloy nanopowder as precursor for printed CISe thin film solar cellscitations
- 2014Microstructural analysis of 9.7% efficient Cu2ZnSnSe4 thin film solar cellscitations
- 2012Artificial construction of the layered Ruddlesden–Popper Manganite La2Sr2Mn3O10by reflection high energy electron diffraction monitored pulsed laser deposition
Places of action
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article
Photoresistive gas sensor based on nanocrystalline ZnO sensitized with colloidal perovskite CsPbBr₃ nanocrystals
Abstract
The development of sensor materials of which gas sensitivity activates under light illumination is of great importance for the design of portable gas analyzers with low power consumption. In the present work a ZnO/CsPbBr3 nanocomposite based on nanocrystalline ZnO and colloidal cubic-shaped perovskite CsPbBr3 nanocrystals (NCs) capped by oleic acide and oleylamine was synthesized. The individual materials and obtained nanocomposite are characterized by x-ray diffraction, low-temperature nitrogen adsorption, x-ray photoelectron spectroscopy, high angle annular dark field scanning transmission electron microscopy with energy-dispersive Xray spectroscopy mapping and UV-vis absorption spectroscopy. The spectral dependence of the photoconductivity of the ZnO/CsPbBr3 nanocomposite reveals a well-defined peak that strongly correlates with the its optical absorption spectrum. The nanocomposite ZnO/CsPbBr3 shows enhanced photoresponse under visible light illumination (lambda(max) = 470 nm, 8 mW/cm(2)) in air, oxygen and argone, compared with pure nanocrystalline ZnO. Under periodic illumination in the temperature range of 25-100 degrees C, the ZnO/CsPbBr3 nanocomposite shows a sensor response to 0.5-3.0 ppm NO2, unlike pure nanocrystalline ZnO matrix, which demonstrates sensor sensitivity to NO2 under the same conditions above 100 degrees C. The effects of humidity on the sensor signal and photoresponse are also discussed.