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Browsing Articole din publicaţii internaţionale by Author "HOPPE, M."

Browsing Articole din publicaţii internaţionale by Author "HOPPE, M."

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  • 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 ...
  • 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 ...
  • 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, ...
  • 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 ...
  • Magnetron Sputtering and Characterization of Doped Zinc Oxide Nanofibrous Films and Their Applications 
    LUPAN, O.; GHIMPU, L.; REIMER, T.; HOPPE, M.; PAULOWICZ, I.; GEDAMU, D.; MISHRA, Y. K.; HAMMERICH, D.; CHEMNITZ, S.; CRETU, V.; TIGINYANU, I.; ADELUNG, R. (American Scientific Publishers, 2014)
    We report on the role played by different types of dopants, namely, Tin and Aluminum on the properties of zinc oxide nanofibrous films prepared by RF magnetron sputtering on substrates in pure Argon atmosphere. The influence ...
  • Morphology dependent UV photoresponse of Sn-doped ZnO microstructures 
    POSTICA, V.; HOPPE, M.; GRÖTTRUP, J.; HAYES, P.; RÖBISCH, V.; SMAZNA, D.; ADELUNG, R.; VIANA, B.; ASCHEHOUG, P.; PAUPORTÉ, T.; LUPAN, O. (ELSEVIER, 2017)
    In this work, the UV sensing properties of Sn-doped and/or alloyed zinc oxide (ZnO) microstructures with different morphologies were investigated in order to elaborate the high performance UV photodetectors. We have compared ...
  • Properties of ZnO:Fe nanostructured films grown by successive chemical synthesis 
    POSTICA, V.; HOPPE, M.; ABABII, N.; TROFIM, V.; RAILEAN, S.; ADELUNG, R.; LUPAN, O. (Institute of Electrical and Electronics Engineerings, IEEE, 2016)
    Rapid progress of nanotechnology in recent years and continuous minimization of portable devices created the necessity of multifunctional devices elaboration. In this work, the morphological, structural and sensing properties ...
  • A rapid hydrothermal synthesis of rutile SnO2 nanowires 
    CRETU, V.; POSTICA, V.; MISHRA, A. K.; HOPPE, M.; TIGINYANU, I.; MISHRA, Y. K.; CHOW, L.; DE LEEUW, Nora H.; ADELUNG, R.; LUPAN, O. (The Royal Society of Chemistry, 2016)
    Synthesis, characterization and DFT studies of zincdoped copper oxide nanocrystals for gas sensing applications Due to their unique properties, p-type copper oxide nanostructures have demonstrated promising potential for ...
  • UV detection properties of hybrid ZnO tetrapod 3-D networks 
    GRÖTTRUP, J.; POSTICA, V.; SMAZNA, D.; HOPPE, M.; KAIDAS, V.; MISHRA, Y. K.; LUPAN, O.; ADELUNG, R. (ELSEVIER, 2017)
    Hybridization of micro- and nanostructures of semiconducting oxides is known to be an efficient way to greatly improve their sensing properties and photocatalytic activity. In this work, zinc oxide (ZnO) tetrapod (T) ...
  • UV nanophotodetector based on a single ZnO:Au nanowire functionalized with Au-nanoparticles 
    POSTICA, V.; PAUPORTÉ, Th.; VIANA, B.; CAVERS, H.; HOPPE, M.; ADELUNG, R.; LUPAN, O. (Society of Photo-Optical Instrumentation Engineers, SPIE, 2020)
    In this work, an individual nanowire of zinc oxide (ZnO-NW), decorated with gold nanoparticles (Au-NPs/ZnO-NW), was integrated in a nanophotodetector using a dual beam focused electron/ion beam (FIB/SEM) system. Au-NPs/ZnO-NW ...

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