| 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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Faupel, Franz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 2024Early-stage silver growth during sputter deposition on SiO2 and polystyrene - Comparison of biased DC magnetron sputtering, high-power impulse magnetron sputtering (HiPIMS) and bipolar HiPIMScitations
- 2024Early-stage silver growth during sputter deposition on SiO$_2$ and polystyrene – Comparison of biased DC magnetron sputtering, high-power impulse magnetron sputtering (HiPIMS) and bipolar HiPIMScitations
- 2024Self‐Modification of Defective TiO<sub>2</sub> under Controlled H<sub>2</sub>/Ar Gas Environment and Dynamics of Photoinduced Surface Oxygen Vacanciescitations
- 2024Influence of Silsesquioxane-Containing Ultra-Thin Polymer Films on Metal Oxide Gas Sensor Performance for the Tunable Detection of Biomarkerscitations
- 2024Co‐sputtering of A Thin Film Broadband Absorber Based on Self‐Organized Plasmonic Cu Nanoparticlescitations
- 2023Two-in-One Sensor Based on PV4D4-Coated TiO 2 Films for Food Spoilage Detection and as a Breath Marker for Several Diseasescitations
- 2023Co‐sputtering of A Thin Film Broadband Absorber Based on Self‐Organized Plasmonic Cu Nanoparticles
- 2023Tuning the Selectivity of Metal Oxide Gas Sensors with Vapor Phase Deposited Ultrathin Polymer Thin Filmscitations
- 2022A thin-film broadband perfect absorber based on plasmonic copper nanoparticlescitations
- 2022In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applicationscitations
- 2022Template-Induced Growth of Sputter-Deposited Gold Nanoparticles on Ordered Porous TiO$_2$ Thin Films for Surface-Enhanced Raman Scattering Sensorscitations
- 2022Sensing performance of CuO/Cu2O/ZnOcitations
- 2021Heterostructure-based devices with enhanced humidity stability for H2 gas sensing applications in breath tests and portable batteries
- 2021Heterostructure-based devices with enhanced humidity stability for H2 gas sensing applications in breath tests and portable batteriescitations
- 2021Selective Silver Nanocluster Metallization on Conjugated Diblock Copolymer Templates for Sensing and Photovoltaic Applicationscitations
- 2021Tuning wettability of TiO 2 thin film by photocatalytic deposition of 3D flower- and hedgehog-like Au nano- and microstructurescitations
- 2021Revealing the growth of copper on polystyrene- block -poly(ethylene oxide) diblock copolymer thin films with in situ GISAXScitations
- 2021Initiated chemical vapor deposition (Icvd) functionalized polylactic acid–marine algae composite patch for bone tissue engineeringcitations
- 2021Initiated chemical vapor deposition (Icvd) functionalized polylactic acid–marine algae composite patch for bone tissue engineeringcitations
- 2021Tuning wettability of TiO2 thin film by photocatalytic deposition of 3D flower- and hedgehog-like Au nano- and microstructurescitations
- 2021Marine algae incorporated polylactide acid patchcitations
- 2021Real-time insight into nanostructure evolution during the rapid formation of ultra-thin gold layers on polymerscitations
- 2020Single CuO/Cu2O/Cu Microwire Covered by a Nanowire Network as a Gas Sensor for the Detection of Battery Hazardscitations
- 2020Facile fabrication of semiconducting oxide nanostructures by direct ink writing of readily available metal microparticles and their application as low power acetone gas sensorscitations
- 2020Following in Situ the Deposition of Gold Electrodes on Low Band Gap Polymer Filmscitations
- 2019Correlating Nanostructure, Optical and Electronic Properties of Nanogranular Silver Layers during Polymer-Template-Assisted Sputter Depositioncitations
- 2019Low-Temperature Solution Synthesis of Au-Modified ZnO Nanowires for Highly Efficient Hydrogen Nanosensorscitations
- 2019The impact of O2/Ar ratio on morphology and functional properties in reactive sputtering of metal oxide thin filmscitations
- 2019Pathways to Tailor Photocatalytic Performance of TiO2 Thin Films Deposited by Reactive Magnetron Sputteringcitations
- 2018Wide Band Low Noise Love Wave Magnetic Field Sensor Systemcitations
- 2018Ultra-thin TiO 2 films by atomic layer deposition and surface functionalization with Au nanodots for sensing applicationscitations
- 2018Plasma based formation and deposition of metal and metal oxide nanoparticles using a gas aggregation sourcecitations
- 2017Localized Synthesis of Iron Oxide Nanowires and Fabrication of High Performance Nanosensors Based on a Single Fe2 O3 Nanowirecitations
- 2017Role of Sputter Deposition Rate in Tailoring Nanogranular Gold Structures on Polymer Surfacescitations
- 2016Non-planar nanoscale p-p heterojunctions formation in ZnxCu1-xOy nanocrystals by mixed phases for enhanced sensorscitations
- 2016Multifunctional device based on ZnOcitations
- 2016Non-planar nanoscale p-p heterojunctions formation in Znx Cu1-x Oy nanocrystals by mixed phases for enhanced sensors
- 2015Real-Time Monitoring of Morphology and Optical Properties during Sputter Deposition for Tailoring Metal–Polymer Interfacescitations
- 2014High-voltage insulation organic-inorganic nanocomposites by plasma polymerizationcitations
- 2012Vapour phase deposition of highly crystalline self-poled piezoelectric nylon-11citations
- 2008Influence of top layer geometries on the electronic properties of pentacene and diindenoperylene thin filmscitations
- 2008Tuning of electrical and structural properties of metal-polymer nanocomposite films prepared by co-evaporation techniquecitations
- 2005Ag-diffusion in the organic semiconductor diindenoperylene
- 2005Radiotracer measurements as a sensitive tool for the detection of metal penetration in molecular-based organic electronicscitations
- 2004Arrays of wirelike microstructures of Ag with visible wavelength transparent plasmonic response at near-ultraviolet and midinfrared regionscitations
- 2004Strain-controlled growth of nanowires within thin-film crackscitations
Places of action
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article
Low-Temperature Solution Synthesis of Au-Modified ZnO Nanowires for Highly Efficient Hydrogen Nanosensors
Abstract
In this research, the lowerature single-step electrochemical deposition of arrayed ZnO nanowires (NWs) decorated by Au nanoparticles (NPs) with diameters ranging between 10 and 100 nm is successfully demonstrated for the first time. The AuNPs and ZnO NWs were grown simultaneously in the same growth solution in consideration of the HAuCl4 concentration. Optical, structural, and chemical characterizations were analyzed in detail, proving high crystallinity of the NWs as well as the distribution of Au NPs on the surface of zinc oxide NWs demonstrated by transmission electron microscopy. Individual Au NPs-functionalized ZnO NWs (Au-NP/ZnO-NWs) were incorporated into sensor nanodevices using an focused ion bean/scanning electron microscopy (FIB/SEM) scientific instrument. The gas-sensing investigations demonstrated excellent selectivity to hydrogen gas at room temperature (RT) with a gas response, Igas/Iair, as high as 7.5-100 ppm for Au-NP/ZnO-NWs, possessing a AuNP surface coverage of â¼6.4%. The concentration of HAuCl4 in the electrochemical solution was observed to have no significant impact on the gas-sensing parameters in our experiments. This highlights the significant influence of the total Au/ZnO interfacial area establishing Schottky contacts for the achievement of high performances. The most significant performance of H2 response was observed for gas concentrations higher than 500 ppm of H2 in the environment, which was attributed to the surface metallization of ZnO NWs during exposure to hydrogen. For this case, an ultrahigh response of about 32.9 and 47 to 1000 and 5000 ppm of H2 was obtained, respectively. Spin-polarized periodic density functional theory calculations were realized on Au/ZnO bulk and surface-functionalized models, validating the experimental hypothesis. The combination of H2 gas detection at RT, ultralow power consumption, and reduced dimensions makes these micro-nanodevices excellent candidates for hydrogen gas leakage detection, including hydrogen gas monitoring (less than 1 ppm).