Browsing by Subject "nanowires"

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  • Electrochemical nanostructuring of (111) oriented GaAs crystals: from porous structures to nanowires 
    MONAICO, Elena I.; MONAICO, Eduard V.; URSAKI, Veaceslav V.; HONNALI, Shashank; POSTOLACHE, Vitalie; LEISTNER, Karin; NIELSCH, Kornelius; TIGINYANU, Ion M. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    A comparative study of the anodization processes occurring at the GaAs(111)A and GaAs(111)B surfaces exposed to electrochemical etching in neutral NaCl and acidic HNO3 aqueous electrolytes is performed in galvanostatic and ...
  • Electrochemistry-based maskless nanofabrication 
    TIGINYANU, Ion; MONAICO, Eduard; POPA, Veaceslav (IEEE, 2012)
    A review of technological approaches for 2D and 3D nanostructuring of semiconductor compounds by using radiation treatment and electrochemical etching is presented. We demonstrate novel spatial nanoarchitectures based on ...
  • Engineering of semiconductor compounds via electrochemical technologies for nano-microelectronic applications 
    MONAICO, Eduard (Technical University of Moldova, 2022)
    The paper is focused on electrochemical approaches for nanostructuring of semiconductor compounds with further applications in nano - microelectronic devices. A cost-effective technology for nanowires and nanotubes obtaining ...
  • Engineering of semiconductor compounds via electrochemical technologies for nano-microelectronic applications 
    MONAICO, Eduard (Technical University of Moldova, 2021)
    The paper is focused on electrochemical approaches for nanostructuring of semiconductor compounds with further applications in micro-nanoelectronic devices. A cost-effective technology for nanowires and nanotubes obtaining ...
  • Enhancement of Zn1-xCdxO Nanowires Sensor Performance through Cd-Doping 
    LUPAN, Oleg; CREŢU, Vasilii; TROFIM, Viorel; SONTEA, Victor; PAUPORTÉ, Thierry; CHOW, Lee (Technical University of Moldova, 2013)
    Metal oxides such as zinc oxide have been studied intensively as H2 sensors during of the last decade. Zn1-xCdxO is a material which presents new properties at nanometer dimensions. This work demonstrates an enhanced ...
  • Ethanol sensor based of copper oxide 
    ABABII, Nicolai; POSTICA, Vasile; TROFIM, Viorel; LUPAN, Oleg (Romanian Inventors Forum, 2018)
    Ethanol sensor based on CuO nanowires (nanostructures), which includes a glass substrate, on the surface of which two gold contacts are deposited, a copper wire 30 μm is deposited between the contacts, characterized in ...
  • Eu-doped ZnO nanowire arrays grown by electrodeposition 
    LUPAN, O.; PAUPORTÉ, T.; VIANA, B.; ASCHEHOUG, P.; AHMADI, M.; ROLDAN CUENYA, B.; RUDZEVICH, Y.; LIN, Y.; CHOW, L. (ELSEVIER, 2013)
    The preparation of efficient light emitting diodes requires active optical layers working at low voltage for light emission. Trivalent lanthanide doped wide-bandgap semiconducting oxide nanostructures are promising active ...
  • Exceptional integration of metal or semimetal nanowires in human-hair-like glass fiber 
    BADINTER, E.; IOISHER, A.; MONAICO, E.; POSTOLACHE, V.; TIGINYANU, I. M. (ELSEVIER, 2010)
    We report on a technological route allowing one to integrate huge amounts of electrically isolated metal or semimetal (Pb/Sn alloys and Bi) nanowires in glass fibers with the diameter of up to a few hundreds of micrometers ...
  • Fabrication of GaN nanowalls and nanowires using surface charge lithography 
    POPA, Veaceslav; TIGINYANU, Ion; VOLCIUC, Olesea; SARUA, Andrei; KUBALL, Martin; HEARD, Peter (ELSEVIER, 2008)
    We demonstrate the possibility for controlled nanostructuring of GaN by focused-ion-beam treatment with subsequent photoelectrochemical (PEC) etching. The proposed maskless approach based on direct writing of surface ...
  • Features of display the quantum dimensional effects in cylindrical semimetal bismuth antimony nanowires 
    NIKOLAEVA, A. A.; KONOPKO, L. A.; GHERGHISHAN, I.; POPOV, I. A.; PARA, Gh. I.; KOBYLIANSKAYA, A. K. (Academia de Ştiinţe a Moldovei, 2019)
    We have developed the method of preparation of the single- crystalline semimetallic bismuth antimony nano- and microwires in glass cover with diameter from 50 nm to 1000 nm, and orientation along the wire axis [1011], using ...
  • Features of luminescence in semiconductor quantum wires in external electric and magnetic fields 
    SINYAVSKY, Elerlange; KOSTYUKEVICH, Nina (Technical University of Moldova, 2017)
    The interband optical transitions in quantum wires in a model of a parabolic potential in an electric and magnetic field directed perpendicular to the nanowire axis are studied theoretically. The frequency dependences of ...
  • Filiform Nanostructure Technologies Based on Microwire Stretching 
    IOISHER, A. M.; BADINTER, E. Ya.; POSTOLACHE, V.; MONAICO, E. V.; URSAKI, V. V.; SERGENTU, V. V.; TIGINYANU, I. M. (American Scientific Publishers, 2012)
    A technological route allowing one to integrate huge amounts of electrically isolated metal, semiconductor, or semimetal nanowires in glass fibers with the diameter of up to a few hundreds of micrometers is presented, and ...
  • Focused-ion-beam fabrication of ZnO nanorod-based UV photodetector using the in-situ lift-out technique 
    LUPAN, Oleg; CHOW, Lee; CHAI, Guangyu; CHERNYAK, Leonid; LOPATIUK-TIRPAK, Olena; HEINRICH, Helge (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2008)
    Abstract ZnO nanorods and nanowires are promising candidates as new types of high-sensitivity ultraviolet (UV) photodetectors due to their wide bandgap and large aspect ratio. In this study, single-crystalline ZnO nanorods ...
  • Formation of InP nanomembranes and nanowires under fast anodic etching of bulk substrates 
    MONAICO, Eduard; TIGINYANU, Ion; VOLCIUC, Olesea; MEHRTENS, Thorsten; ROSENAUER, Andreas; GUTOWSKI, Jürgen; NIELSCH, Kornelius (ELSEVIER, 2014)
    We demonstrate that fast anodic etching of bulk crystalline substrates of n-InP via photolithographically defined windows leads to the formation of nanomembranes and nanowires being promising for device applications. It ...
  • Formation of low-dimensional structures on InP under fast anodic etching 
    MONAICO, Eduard (Tehnica UTM, 2016)
    In this paper, we report on the possibility of cost-effective fabrication of InP nanomembranes and nanowires using fast anodic etching of n-InP single crystalline substrates under potentiostatic conditions. Fast anodic ...
  • Functionalized Pd/ZnO Nanowires for Nanosensors 
    LUPAN, Oleg; POSTICA, Vasile; ADELUNG, Rainer; LABAT, Frédéric; CIOFINI, Ilaria; SCHÜRMANN, Ulrich; KIENLE, Lorenz; CHOW, Lee; VIANA, Bruno; PAUPORTÉ, Thierry (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
    A method for surface doping and functionalization of ZnO nanowires (NWs) with Pd (Pd/ZnO) in a one-step process is presented. The main advantage of this method is to combine the simultaneous growth, surface doping, and ...
  • GaAs nanowires obtained via electrochemical etching of bulk substrates 
    MONAICO, Ed.; MORARI, V.; URSAKI, V. V.; MONAICO, E. I.; TIGINYANU, I. M.; NIELSCH, K. (Institutul de Fizică Aplicată, AŞM, 2018)
    Technological conditions for obtaining InP nanomembranes and nanowires by means of fast anodic etching of bulk substrates have been recently elaborated. Electrochemical etching is an easy, cost-effective, and very fast ...
  • GaP template based semiconductor-metal nanocomposite 
    ALBU, Sergiu; MONAICO, Eduard; TIGINYANU, I. M.; URSAKI, V. V. (Institutul de Fizică Aplicată, AŞM, 2006)
    The interest in nanometer-scale materials and devices stimulated the development of alternative technologies in recent years. Metal nanowires are one of the most attractive materials because of their unique properties ...
  • Growth of ZnCdS single crystals and prospects of their application as nanoporous structures 
    COLIBABA, G. V.; MONAICO, E. V.; GONCEARENCO, E. P.; NEDEOGLO, D. D.; TIGINYANU, I. M.; NIELSCH, K. (IOP Publishing, 2014)
    Substrates of wide band-gap II–VI semiconductor compounds are considered feasible for the fabrication of nanoporous matrices (NM) needed for templated growth of nanowires and nanotubes of solid-state materials promising ...
  • High Aspect Ratio Ternary Zn1–xCdxO Nanowires by Electrodeposition for Light-Emitting Diode Applications 
    LUPAN, Oleg; PAUPORTÉ, Thierry; LE BAHERS, Tangui; CIOFINI, Ilaria; VIANA, Bruno (American Chemical Society, 2011)
    We present a combined experimental and computational approach to study Zn1–xCdxO nanowires (NWs) and their integration in light-emitting diode (LED) structures. Self-standing Zn1–xCdxO NWs have been electrodeposited on ...

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