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Browsing Articole ştiinţifice by Author "HANSEN, Sandra"

Browsing Articole ştiinţifice by Author "HANSEN, Sandra"

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  • Additive Manufacturing as a Means of Gas Sensor Development for Battery Health Monitoring 
    LUPAN, Oleg; KRÜGER, Helge; SIEBERT, Leonard; ABABII, Nicolai; KOHLMANN, Niklas; BUZDUGAN, Artur; BODDULURI, Mani Teja; MAGARIU, Nicolae; TERASA, Maik-Ivo; STRUNSKUS, Thomas; KIENLE, Lorenz; ADELUNG, Rainer; HANSEN, Sandra (MDPI, Basel, Switzerland, 2021)
    Lithium-ion batteries (LIBs) still need continuous safety monitoring based on their intrinsic properties, as well as due to the increase in their sizes and device requirements. The main causes of fires and explosions in ...
  • Al2O3/ZnO composite-based sensors for battery safety applications: An experimental and theoretical investigation 
    SANTOS-CARBALLAL, David; LUPAN, Oleg; MAGARIU, Nicolae; ABABII, Nicolai; KRÜGER, Helge; BODDULURI, Mani Teja; LEEUW, Nora H. de; HANSEN, Sandra; ADELUNG, Rainer (Elsevier, 2023)
    Lithium-ion batteries are vital in one of the key nanotechnologies required for the transition to a carbon-free society. As such, they are under constant investigation to improve their performance in terms of energy and ...
  • Al2O3/ZnO Heterostructure-Based Sensors for Volatile Organic Compounds in Safety Applications 
    LUPAN, Oleg; SANTOS-CARBALLAL, David; MAGARIU, Nicolae; MISHRA, Abhishek Kumar; ABABII, Nicolai; KRÜGER, Helge; WOLFF, Niklas; VAHL, Alexander; BODDULURI, Mani Teja; KOHLMANN, Niklas; KIENLE, Lorenz; ADELUNG, Rainer; LEEUW, Nora H. de; HANSEN, Sandra (American Chemical Society, 2022)
    In this work, we demonstrate the sensing properties toward the most common VOCs of columnar Al2O3/ZnO heterolayer-based sensors. We have also developed an approach to tune the sensor selectivity by changing the thickness ...
  • Comparison of Thermal Annealing versus Hydrothermal Treatment Effects on the Detection Performances of ZnO Nanowires 
    LUPAN, Oleg; MAGARIU, Nicolae; KHALEDIALIDUSTI, Rasoul; MISHRA, Abhishek Kumar; HANSEN, Sandra; KRÜGER, Helge; POSTICA, Vasile; HEINRICH, Helge; VIANA, Bruno; ONO, Luis Katsuya; CUENYA, Beatriz Roldan; CHOW, Lee; ADELUNG, Rainer; PAUPORTÉ, Thierry (American Chemical Society, 2021)
    A comparative investigation of the post-electroplating treatment influence on the gas detecting performances of single ZnO nanorod/nanowire (NR/NW), as grown by electrochemical deposition (ECD) and integrated into nanosensor ...
  • Development of 2-in-1 Sensors for the Safety Assessment of Lithium-Ion Batteries via Early Detection of Vapors Produced by Electrolyte Solvents 
    LUPAN, Oleg; MAGARIU, Nicolae; SANTOS-CARBALLAL, David; ABABII, Nicolai; OFFERMANN, Jakob; POOKER, Pia; HANSEN, Sandra; SIEBERT, Leonard; LEEUW, Nora H. de; ADELUNG, Rainer (American Chemical Society, 2023)
    In this study, we investigate the gas-sensing capabilities of semiconducting metal oxides for detecting vapors produced by common battery components, such as solvents, salts, or their degassing products. Our main objective ...
  • Heterostructure-based devices with enhanced humidity stability for H2 gas sensing applications in breath tests and portable batteries 
    LUPAN, Oleg; ABABII, Nicolai; MISHRA, Abhishek Kumar; BODDULURI, Mani Teja; MAGARIU, Nicolae; Alexander VAHL, Alexander VAHL; KRÜGER, Helge; WAGNER, Bernhard; FAUPEL, Franz; ADELUNG, Rainer; LEEUW, Nora H. de; HANSEN, Sandra (Elsevier, 2021)
    Semiconducting metal oxide - based gas sensors exhibit outstanding sensitivity, although humidity in the analyte typically hampers precise measurements. In this work it was shown that a 5−6 nm thin Al2O3 nano-layer is ...
  • High-Performance Gas Sensors Using Heterostructures based on Binary and Ternary Metal Oxides 
    ABABII, Nicolai; BODDULURI, Mani Teja; KRÜGER, Helge; HANSEN, Sandra; POSTICA, Vasile; LUPAN, Oleg; ADELUNG, Rainer (IEEE, 2021)
    The gas sensing properties of heterojunctions based on binary and ternary metal oxides (CuAl 2 O 4 /Al 2 O 3 /CuO/Cu 2 O, ZnAl 2 O 4 /ZnO and Zn 2 SnO 4 ) were investigated in detail and demonstrated excellent sensitivity ...
  • Improved Long-Term Stability and Reduced Humidity Effect in Gas Sensing: SiO2 Ultra-Thin Layered ZnO Columnar Films 
    POSTICA, Vasile; LUPAN, Oleg; GAPEEVA, Anna; HANSEN, Luka; KHALEDIALIDUSTI, Rasoul; MISHRA, Abhishek Kumar; DREWES, Jonas; KERSTEN, Holger; FAUPEL, Franz; ADELUNG, Rainer; HANSEN, Sandra (John Wiley & Sons, Inc., 2021)
    The undoped and metal-doped zinc oxide columnar films (ZnO:Sn, ZnO:Fe, ZnO:Ag, and ZnO:Cu) are covered with an ultra-thin layer of SiO2 (10–20 nm). The electrical, UV, and volatile organic compounds (VOCs) sensing properties ...
  • Nano-Heterostructured Materials - Based Sensors for Safety and Biomedical Applications 
    LUPAN, Oleg; MAGARIU, Nicolae; KRÜGER, Helge; SEREACOV, Alexandr; ABABII, Nicolai; RAILEAN, Serghei; ZIMOCH, Lukas; ADELUNG, Rainer; HANSEN, Sandra (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    Permanent monitoring of lithium-ion batteries (LIBs) and volatile organic compounds (VOCs) in various environments, especially for safety and biomedical applications, is a growing field due to the high reactivity of the ...
  • Semiconducting Oxide - Based Micro- and Nano-Sensors for Environmental and Biomedical Monitoring 
    MAGARIU, Nicolae; ABABII, Nicolai; ZADOROJNEAC, Tudor; KRÜGER, Helge; BODDULURI, Mani Teja; PAUPORTÉ, Thierry; ADELUNG, Rainer; HANSEN, Sandra; LUPAN, Oleg (IEEE, 2021)
    Nanosensors and microsensors are important for environmental and biomedical monitoring due to their extraordinary properties. In this work sensor devices are fabricated for the detection of H 2 gas and ethanol vapors. These ...
  • Single CuO/Cu2O/Cu Microwire Covered by a Nanowire Network as a Gas Sensor for the Detection of Battery Hazards 
    LUPAN, Oleg; ABABII, Nicolai; MISHRA, Abhishek Kumar; GRONENBERG, Ole; VAHL, Alexander; SCHÜRMANN, Ulrich; DUPPEL, Viola; KRÜGER, Helge; CHOW, Lee; KIENLE, Lorenz; FAUPEL, Franz; ADELUNG, Rainer; LEEUW, Nora H. de; HANSEN, Sandra (American Chemical Society, 2020)
    In this study, a strategy to prepare CuO/Cu2O/Cu microwires that are fully covered by a nanowire (NW) network using a simple thermal-oxidation process is developed. The CuO/Cu2O/Cu microwires are fixed on Au/Cr pads with ...
  • Surface functionalization of ZnO:Ag columnar thin films with AgAu and AgPt bimetallic alloy nanoparticles as an efficient pathway for highly sensitive gas discrimination and early hazard detection in batteries 
    VAHL, Alexander; LUPAN, Oleg; SANTOS-CARBALLAL, David; POSTICA, Vasile; HANSEN, Sandra; CAVERS, Heather; WOLFF, Niklas; TERASA, Maik-Ivo; HOPPE, Mathias; CADI-ESSADEK, Abdelaziz; DANKWORT, Torben; KIENLE, Lorenz; DE LEEUW, Nora H.; ADELUNG, Rainer; FAUPEL, Franz (The Royal Society of Chemistry, 2020)
    We report herein, a novel approach to tailor the selectivity of nanocomposite thin film sensors by investigating systematically the effect of surface decoration of Ag-doped ZnO (ZnO:Ag) columnar thin films. We have used ...
  • Tailoring the selectivity of ultralow-power heterojunction gas sensors by noble metal nanoparticle functionalization 
    LUPAN, Oleg; ABABII, Nicolai; SANTOS-CARBALLAL, David; TERASA, Maik-Ivo; MAGARIU, Nicolae; ZAPPA, Dario; COMINI, Elisabetta; PAUPORTÉ, Thierry; SIEBERT, Leonard; FAUPEL, Franz; VAHL, Alexander; HANSEN, Sandra; LEEUW de, Nora H.; ADELUNG, Rainer (Elsevier, 2021)
    Heterojunctions are used in solar cells and optoelectronics applications owing to their excellent electrical and structural properties. Recently, these energy-efficient systems have also been employed as sensors to distinguish ...
  • TiO2/Cu2O/CuO Multi-Nanolayers as Sensors for H2 and VOCs: An Experimental and Theoretical Investigation 
    LUPAN, Oleg; SANTOS-CARBALLAL, David; ABABII, Nicolai; MAGARIU, Nicolae; HANSEN, Sandra; VAHL, Alexander; ZIMOCH, Lukas; HOPPE, Mathias; PAUPORTE, Thierry; GALSTYAN, Vardan; SONTEA, Victor; CHOW, Lee; FAUPEL, Franz; ADELUNG, Rainer; LEEUW de, Nora H.; COMIN, Elisabetta (American Chemical Society, 2021)
    Highly sensitive TiO2/Cu2O/CuO multi-nanolayers have been grown in various thicknesses by a cost-effective and reproducible combined spray-sputtering-annealing approach. The ultra-thin TiO2 films were deposited by spray ...
  • TiO2/Cu2O/CuO Multi-Nanolayers as Sensors for H2 and Volatile Organic Compounds: An Experimental and Theoretical Investigation 
    LUPAN, Oleg; SANTOS-CARBALLAL, David; ABABII, Nicolai; MAGARIU, Nicolae; HANSEN, Sandra; VAHL, Alexander; ZIMOCH, Lukas; HOPPE, Mathias; PAUPORTÉ, Thierry; GALSTYAN, Vardan; SONTEA, Victor; CHOW, Lee; FAUPEL, Franz; ADELUNG, Rainer; de LEEUW, Nora H.; COMINI, Elisabetta (American Chemical Society, 2021)
    TiO2/Cu2O/CuO multi-nanolayers highly sensitive toward volatile organic compounds (VOCs) and H2 have been grown in various thicknesses by a cost-effective and reproducible combined spray–sputtering–annealing approach. The ...

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