Browsing by Author "ADELUNG, R."

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  • 3D-Printed Sensor Array of Semiconducting Oxides 
    SIEBERT, L.; TERASA, M. I.; ABABII, N.; LUPAN, O.; ADELUNG, R. (Tehnica UTM, 2019)
    Sensors start to play an ever increasing role in human life and new technologies for their cost-effective mass production are required. In this work, the one-step 3D-printing of nanoflakes - nanowire covered Fe2O3/Fe - ...
  • Acetone Sensing Properties of Nanostructured Copper Oxide Films on Glass Substrate 
    CRETU, V.; ABABII, N.; POSTICA, V.; MAGARIU, N.; HOPPE, M.; VERJBITKI, V.; SONTEA, V.; ADELUNG, R.; LUPAN, O. (Tehnica UTM, 2019)
    Copper oxide nanostructured films were synthesized via a chemical synthesis (SCS) method and annealed in low vacuum. The morphological properties were investigated using scanning electron microscopy (SEM). The elaborated ...
  • Aluminium-BSF Versus PERC Solar Cells: Study of Rear Side Passivation Quality and Diffusion Length 
    SCHÜTT, A.; LUPAN, O.; ADELUNG, R. (Tehnica UTM, 2019)
    The impact of (bulk) material and rear surface (contact) quality to the efficiency is found to be quite hard to measure on a processed solar cell. We will show with this paper that CELLO (solar cell local characterization) ...
  • Characterisation of Silicon Nanolayers Deposited by Plasma Enhanced Chemical Vapor Deposition on 3-D ZnO Templates for Hollow Silicon Microstructures 
    HÖLKEN, I.; SCHRÖDER, S.; ADELUNG, R. (Tehnica UTM, 2015)
    Hollow inorganic microstructures have gained much interest in nowadays research fields as they offer unique properties (high specific area, thermal conductivity or density) when compared to their bulk equivalents 1. On the ...
  • Characterization of core/shell structures based on CdTe and GaAs nanocrystalline layers deposited on SnO2 microwires 
    GHIMPU, L.; URSAKI, V. V.; PANTAZI, A.; MESTERCA, R.; BRÂNCOVEANU, O.; SHREE, Sindu; ADELUNG, R.; TIGINYANU, I. M.; ENACHESCU, M. (ELSEVIER, 2018)
    We report the fabrication and characterization of SnO2/CdTe and SnO2/GaAs core/shell microstructures. CdTe or GaAs shell layers were deposited by radio-frequency (RF) magnetron sputtering on core SnO2 microwires synthesized ...
  • Control of persistent photoconductivity in nanostructured InP through morphology design 
    MONAICO, Ed.; POSTOLACHE, V.; BORODIN, E.; URSAKI, V. V.; LUPAN, O.; ADELUNG, R.; NIELSCH, K.; TIGINYANU, I. M. (IOP Publishing Ltd, 2015)
    In this paper, we show that long-duration-photoconductivity decay (LDPCD) and persistent photoconductivity (PPC) in porous InP structures fabricated by anodic etching of bulk substrates can be controlled through the ...
  • Detection properties of individual and networked CNT-ZnO-hybrid tetrapods 
    POSTICA, V.; LUPAN, O.; SONTEA, V.; TROFIM, V.; SCHÜTT, F.; SMAZNA, D.; MISHRA, Y. K.; ADELUNG, R. (IEEE, 2017)
    In this work, the UV detection properties of ZnO tetrapod (ZnO-T) networks functionalized with carbon nanotubes (CNTs), as well as for individual ZnO-T-CNT are reported. The ZnO-T networks were fabricated via a flame ...
  • Detectors based on Pd-doped and PdO-functionalized ZnO nanostructures 
    POSTICA, V.; LUPAN, O.; ABABII, N.; HOPPE, M.; ADELUNG, R.; CHOW, L.; SONTEA, V.; ASCHEHOUG, P.; VIANA, B.; PAUPORTÉ, Th. (SPIE, 2018)
    In this work, zinc oxide (ZnO) nanostructured films were grown using a simple synthesis from chemical solutions (SCS) approach from aqueous baths at relatively low temperatures (< 95 °C). The samples were doped with Pd ...
  • Effect of Dopant on Selectivity of CuO Nanostructured Films – Based Sensors 
    CRETU, V.; POSTICA, V.; ABABII, N.; MAGARIU, N.; SONTEA, V.; SCHÜTT, F.; ADELUNG, R.; LUPAN, O. (Tehnica UTM, 2015)
    In this work, the effect of different dopants on selectivity performance of gas sensor structures based on CuO nano-structured films that were synthesized from aqueous chemical solutions SCS is reported.
  • Electrical Characterization of Individual Boron Nitride Nanowall Structures 
    POSTICA, V.; SCHÜTT, F.; LUPAN, C.; KRÜGER, H.; ADELUNG, R.; LUPAN, O. (Universitatea Tehnică a Moldovei, 2021)
    In this work, the individual hexagonal boron nitride (h-BN) microtubular structures with different diameter (ranging from ≈ 0.2 to ≈ 2.5 μm) and a wall thickness below 25 nm were investigated for the first time by integration ...
  • Ethanol Sensing Performances of Zinc-doped Copper Oxide Nano-crystallite Layers 
    CRETU, V.; POSTICA, V.; ABABII, N.; SCHÜTT, F.; HOPPE, M.; SMAZNA, D.; TROFIM, V.; SONTEA, V.; ADELUNG, R.; LUPAN, O. (Sumy State University, 2015)
    The synthesis via chemical solutions (aqueous) (SCS) wet route is a low-temperature and cost-effective growth technique of high crystalline quality oxide semiconductors films. Here we report on morphology, chemical ...
  • Exploitation of Ultra-porous Aerogalnite for Microwave Electromagnetic Interference Shielding 
    ALDRIGO, M.; DRAGOMAN, M.; BRANISTE, T.; IORDANESCU, S.; RAEVSCHI, S.; SHREE, S.; ADELUNG, R.; TIGINYANU, I. (Tehnica UTM, 2019)
    In this paper, we present the electromagnetic interference shielding properties of an ultra-porous and ultra-light GaN-based nanomaterial, which we will refer to with aeroGaN. The importance of the so-called X-band (8.2-12.4 ...
  • Functional Ecofriendly Coatings for Marine Applications 
    HÖLKEN, I.; HOPPE, M.; ADELUNG, R.; BAUM, M. (Tehnica UTM, 2015)
    The worldwide increasing number of off-shore wind turbines brings along the need for innovative polymer coatings which on the one hand can withstand the extreme forces acting on the rotor blades and on the other hand can ...
  • H2 gas sensing properties of a ZnO/CuO and ZnO/CuO/Cu2O Heterostructures 
    ABABII, N.; POSTICA, V.; HOPPE, M.; ADELUNG, R.; LUPAN, O.; RAILEAN, S.; PAUPORTÉ, T.; VIANA, B. (Society of Photo-Optical Instrumentation Engineers, SPIE, 2017)
    The most important parameters of gas sensors are sensitivity and especially high selectivity to specific chemical species. To improve these parameters we developed sensor structures based on layered semiconducting oxides, ...
  • Hollow silicon microstructures for biomedical applications 
    POSTICA, V.; HÖLKEN, I.; BUMKE, L.; BAUM, M.; ABABII, N.; LUPAN, O.; ADELUNG, R. (Technical University of Moldova, 2016)
    Traditional gas sensors and biosensors based on metal oxide micro- and nanostructures, which are widely investigated in the past decades, have very high electrical resistivity (in range of MΩ – TΩ). Such high resistivity ...
  • Hybridization of Zinc Oxide Tetrapods for Selective Gas Sensing Applications 
    LUPAN, O.; POSTICA, V.; GRÖTTRUP, J.; MISHRA, A. K.; DE LEEUW, N. H.; CARREIRA, J. F. C.; RODRIGUES, J.; BEN SEDRINE, N.; CORREIA, M. R.; MONTEIRO, T.; CRETU, V.; TIGINYANU, I.; SMAZNA, D.; MISHRA, Y. K.; ADELUNG, R. (American Chemical Society, 2017)
    In this work, the exceptionally improved sensing capability of highly porous three-dimensional (3-D) hybrid ceramic networks toward reducing gases is demonstrated for the first time. The 3-D hybrid ceramic networks are ...
  • The impact of O2/Ar ratio on morphology and functional properties in reactive sputtering of metal oxide thin films 
    VAHL, A.; DITTMANN, J.; JETTER, J.; VEZIROGLU, S.; SHREE, S.; ABABII, N.; LUPAN, O.; AKTAS, O. C.; STRUNSKUS, T.; QUANDT, E.; ADELUNG, R.; SHARMA, S. K.; FAUPEL, F. (IOP Publishing Ltd, 2019)
    Morphology is a critical parameter for various thin film applications, influencing properties like wetting, catalytic performance and sensing efficiency. In this work, we report on the impact of oxygen partial flow on the ...
  • The Impact of the Discreteness of Low-fluence Ion Beam Processing on the Spatial Architecture of GaN Nanostructures Fabricated by Surface Charge Lithography 
    TIGINYANU, I. M.; VOLCIUC, O.; STEVENS-KALCEFF, M. A.; POPA, V.; GUTOWSKI, J.; WILLE, S.; ADELUNG, R.; FOLL, H. (Academia de Ştiinţe a Moldovei, 2013)
    We show that the descrete nature of ion beam processing used as a component in the approach of surface charge lithography leads to spatial modulation of the edges of the GaN nanostructures such as nanobelts and nanoperforated ...
  • Individual Bi2O3-Functionalized ZnO Microwire for Hydrogen Gas Detection 
    POSTICA, V.; LUPAN, O.; GRÖTTRUP, J.; ADELUNG, R. (Springer Nature Switzerland, 2018)
    Individual micro- and nanostructures of metal oxides are known to be highly sensitive to surface phenomena due to their enhanced surface-to-volume ratio. In this work, an individual Bi2O3-functionalized ZnO microwire ...
  • Influence of CuO nanostructures morphology on hydrogen gas sensing performances 
    LUPAN, O.; POSTICA, V.; ABABII, N.; HOPPE, M.; CRETU, V.; TIGINYANU, I.; SONTEA, V.; PAUPORTÉ, Th.; VIANA, B.; ADELUNG, R. (ELSEVIER, 2016)
    In this study, the impact of different morphologies of p-type copper oxide nanostructures on hydrogen gas response is investigated. Sensor structures based on CuO nanowire (NW) networks demonstrated much higher gas response ...

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