Browsing by Subject "nanostructures"

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  • 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 ...
  • Flame based growth of ZnO nano- and microstructures for advanced optical, multifunctional devices, and biomedical applications (Conference Presentation) 
    MISHRA, Yogendra K.; GRÖTTRUP, Jorit; SMAZNA, Daria; HÖLKEN, Iris; HOPPE, Mathias; SINDUSHREE, Sindushree; KAPS, Sören; LUPAN, Oleg; SEIDEL, Jan; MONTEIRO, Teresa; TIGINYANU, Ion M.; KIENLE, Lorenz; RONNING, Carsten; SCHULTE, Karl; FIEDLER, Bodo; ADELUNG, Rainer (SPIE, Society of Photo-Optical Instrumentation Engineers, 2017)
    The ZnO micro- and nanoneedles grown at walls in silicon trenches showed excellent whispering gallery mode resonances and photocatalytic properties. Using the same strategy, large polycrystalline micro- and nanostructured ...
  • Fröhlich modes in gan columnar nanostructures 
    TIGINYANU, I. M.; SARUA, A.; IRMER, G.; MONECKE, J.; HUBBARD, S. M.; PAVLIDIS, D.; VALIAEV, V. (American Physical Society, 2001)
    GaN columnar nanostructures fabricated by electrochemical dissolution of bulk material have been studied by micro-Raman spectroscopy. The anodization induces an increase in the intensity of Raman scattering accompanied by ...
  • Functional nanostructures for electronics, spintronics and sensors 
    SIDORENKO, Anatolie S. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    Nanotechnology and functional nanostructures, exciting trends of the 21st century, are topics that have penetrated and influenced nearly all areas of human activity: from microelectronics to biology, from aerospace to ...
  • Fundamental Issues in the Manufacturing of Nanoelectromechanical (NEMS) and Related Nanosystems 
    SINGH, R.; ALAPATT, G. F.; GUPTA, N.; POOLE, K. F. (Technical University of Moldova, 2011)
    Nanostructures in dimension below about 10 nm show interesting properties because of the effect of low-dimension physics. However, to utilize these properties in practice to commercialize NEMS and related nano-systems ...
  • The Generalization of Scientific and Educational Materials on Nanoelectronics 
    SPIVAK, V. M.; VLASIUK, A. G.; TIRSU, M. S. (Tehnica UTM, 2015)
    Summarizes the scientific and educational materials on nanoelectronics, as reflected in monographs and textbooks on the basis of copyright, the most significant results of research and compilation of the most important ...
  • Gold Electroplating as a Tool for Assessing the Conductivity of InP Nanostructures Fabricated by Anodic Etching of Crystalline Substrates 
    MONAICO, E. V.; TIGINYANU, I. M.; URSAKI, V. V.; NIELSCH, K.; BALAN, D.; PRODANA, M.; ENACHESCU, M. (The Electrochemical Society, 2017)
    Electroplating is shown to represent a simple and effective tool for assessing the conductivity of InP nanostructures fabricated by electrochemical etching of InP wafers. A mixture of nanowalls, nanowires and nanobelts was ...
  • Growth of tetragonal SnO2 microcubes and their characterization 
    LUPAN, O.; CHOW, L.; CHAI, G.; HEINRICH, H.; PARK, S.; SCHULTE, A. (ELSEVIER, 2008)
    Single-crystalline SnO2 microcubes were grown using the hydrothermal method without any catalyst. X-ray diffraction (XRD) patterns and energy dispersive X-ray (EDX) analysis verified that the cubes are tin dioxide SnO2. ...
  • Hybrid nanostructures superconductor-ferromagnet for superconducting spintronics 
    SIDORENKO, A. S.; MORARI, R. A.; BOIAN, V.; PREPELITSA, A. A.; ANTROPOV, E. I.; SAVVA, Yu. B.; FEDOTOV, A. Yu.; SEVRYUKHINA, O. Yu.; VAKHRUSHEV, A. V. (IOP Publishing, 2021)
    The work is devoted to the study of the processes of formation of multilayer nanostructures, their vacuum deposition, and the manufacture of a novel functional element of spintronics - superconducting spin valve, which is ...
  • Hydrogen Gas Response of Zn1 – xAgxOy and Cu1 – xZnxOy Nanostructured Films 
    CRETU, V.; POSTICA, V.; ABABII, N.; SONTEA, V.; LUPAN, O. (Sumy State University, 2014)
    Detection of hydrogen gas in industry, biomedical systems and combustion systems is important for safety reasons. Silver doping in zinc oxide and zinc doping in copper oxide were investigated to obtain improved hydrogen ...
  • Hydrothermal treatment for the marked structural and optical quality improvement of ZnO nanowire arrays deposited on lightweight flexible substrates 
    LUPAN, Oleg; PAUPORTÉ, Thierry (ELSEVIER, 2010)
    ZnO nanowire arrays (NWs) have attracted great interest as the building blocks for emerging applications in new flexible and elastic electronic and optoelectronic devices (e.g. smart cards, light emitting diodes (LEDs), ...
  • The Impact of High Energy Ion Irradiation Upon CO Gas Sensitivity of Nanostructured GaN Epilayers 
    VOLCIUC, O. S.; POPA, V.; TIGINYANU, I. M.; SKURATOV, V. A.; CHO, M.; PAVLIDIS, D. (Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of Moldova, 2010)
    Photoelectrochemically nanostructured GaN epilayers were found to exhibit good sensitivity towards CO in the temperature range from 180 to 280°C. We show that subjection of nanostructured GaN samples to 166 MeV Xe+23 ion ...
  • 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 ...
  • Improvement of SiO2(Ge)SiO2/Si Nanostructures by Low Dose γ-radiation 
    SHISHIYANU, S. T.; SHISHIYANU, T. S.; YILMAZ, E.; TURAN, R.; MOGADDAM, N. A. P. (Technical University of Moldova, 2011)
    Effect of γ – radiation on SiO2(Ge)SiO2/Si nanostructures structural defects was investigated by C-V measurements characterization. The obtained results demonstrated that by low dose γ-radiation (0.1Gy*150Gy) have been ...
  • Interacţiunea celulelor vii cu nanostructuri din compuşi semiconductori 
    BRANIŞTE, Tudor (Tehnica UTM, 2016)
    În prezenta lucrare au fost identificate mecanismele de interacțiune a celulelor endoteliale și nanostructuri în baza compușilor semiconductori. Au fost investigate proprietățile de viabilitate celulară, absorbția ...
  • Large polarons in semiconductor nanostructures 
    DEVREESE, J. T. (Technical University of Moldova, 2005)
    I present an overview is presented of the fundamentals of large-polaron physics, which provide the basis of the analysis of polaron effects in semiconductor nanostructures. The emphasis is on the polaron optical absorption. ...
  • Lasing properties of ZnO nanostructures 
    ZALAMAI, V. (Technical University of Moldova, 2015)
    On the base of zinc oxide was developed solar cells, although it efficiency is lower then industrial one using cost effective and uncomplicated technology of chemical bath deposition (CBD) makes this material very perspective. ...
  • Light emission in ZnO nanostructures 
    ZALAMAI, V. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    Zinc oxide is a wide gap semiconductor material on his base are produced white and blue LED and lasers. Also zinc oxide is perspective and promising material for application in optoelectronics, nanoelectronics, photonics, ...
  • Low temperature preparation of Ag-doped ZnO nanowire arrays for sensor and light-emitting diode applications 
    LUPAN, O.; VIANA, B.; CRETU, V.; POSTICA, V.; ADELUNG, R.; PAUPORTÉ, T. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2016)
    Transition metal doped-oxide semiconductor nanostructures are important to achieve enhanced and new properties for advanced applications. We describe the low temperature preparation of ZnO:Ag nanowire/nanorod (NW/NR) arrays ...
  • Magnetic properties of microwires and filiform nanostructures with elongated magnetic inclusions 
    ALEINICOV, E.; IOISHER, A.; MAKHNOVSKIY, D.; POSTOLACHE, V.; TIGINYANU, I.; URSAKI, V. (Springer Nature Switzerland, 2016)
    We developed technological procedures for preparation of filiform nanostructures (FNSs) on the basis of stretching microwires with magnetic material cores. It is shown that disruptions of the microwire core occur for these ...

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