Conferinţe: Recent submissions

  • Synthesis of Colloidal InP Nanocrystal Quantum Dots 
    SIRBU, L.; GUTUL, T.; TODOSICIUC, A.; DANILA, M.; MULLER, R.; SARUA, A.; WEBSTER, R.; TIGINYANU, I. M.; URSAKI, V. (Technical University of Moldova, 2013)
    InP nanodots with the diameter of 4−10 nm were synthesized using sol-gel method. The nanodot dimensions were obtained using TEM, and we found the d(111) spacing to be 0.328nm which agrees within 3% of the literature value. ...
  • 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 ...
  • The Effect of Size, Shape and Environment on Magnetic Properties of a Nanoparticle: microscopic model analysis 
    COJOCARU, Sergiu; DOHOTARU, Leonid; MOSCALENCO, Vsevolod (Technical University of Moldova, 2013)
    Our theoretical study of magnetic nanoparticles is based on an original analytic approach, which allows to track down the intrinsic mechanisms of the observed magnetic properties. In particular, it reveals some misleading ...
  • Facile Synthesis and Properties of Single-Crystal SnO2 Nanostructures 
    LUPAN, Oleg; CREŢU, Vasilii; RAILEAN, Serghei (Technical University of Moldova, 2013)
    Single-crystal tin oxide (SnO2) nanostructures with rutile structure have been synthesized through a facile hydrothermal process. The morphologies and structural properties of the nanorods/nanoneedles/nanowires were ...
  • Comparative Study of Persistent Photoconductivity in GaP and GaN Nanostructures 
    POSTOLACHE, Vitalie (Technical University of Moldova, 2013)
    Relaxation of photoconductivity is investigated in bulk GaP and GaN substrates and epitaxial layers as compared to porous GaP samples and GaN nanomembranes. Porous GaP samples with different characteristic sizes of pores ...
  • Retroreflection from Nanoporous InP 
    PRISLOPSKI, S. Ya.; NAUMENKO, E. K.; TIGINYANU, I. M.; GHIMPU, L.; MONAICO, E.; SIRB, L.; GAPONENKO, S. V. (Technical University of Moldova, 2013)
    Pronounced retroreflection behavior is reported for a fishnet nanoporous strongly absorbing semiconductor material. Retroreflection appears with diffusive specular reflection for all angles of incidence. Retroreflection ...
  • Properties of MoO3 Nanostructures Grown Via Thermal Oxidation 
    TROFIM, Viorel; CREŢU, Vasilii; LUPAN, Oleg; STAMOV, Ivan; SYRBU, Nicolae; ZALAMAI, Victor; CHOW, Lee (Technical University of Moldova, 2013)
    Metal oxides such as molybdenum oxide (MoO3) have been studied intensively as sensors and electrochromic systems during of the last decade. MoO3 nanowires present new properties at nanometer dimensions. Its structural, ...
  • Raman Spectra of TiO2 Thin Films Deposited Electrochemically and by Spray Pyrolysis 
    SHISHIYANU, S.; STRATAN, Gh.; VARTIC, V.; ZARRELLI, M.; GIORDANO, M.; RUSU, E.; SHISHIYANU, T. (Technical University of Moldova, 2013)
    In this paper we present our experimental results concerning the fabrication of TiO2 thin films by spray pyrolysis and electrochemical deposition method onto different substrates – Corning glass, Si and optical fibers. The ...
  • Evidence for the Concentration Induced Extinction of Gas Sensitivity in Amorphous and Nanostructured Te Thin Films 
    TSIULYANU, D.; MOCREAC, O.; ENACHI, M.; VOLODINA, G. (Technical University of Moldova, 2013)
    The extinction of sensitivity to nitrogen dioxide induced by high gas concentration have been observed in ultrathin tellurium films. The phenomenon becomes apparent in both continuous and nanostructured films shown by AFM, ...
  • Reliability and Mechanism of Radiation Degradation of Microeletronic Devices 
    SHISHIYANU, Teodor (Technical University of Moldova, 2013)
    This review pape is destinated to investigation the mechanism and radiation degradation of microelectroic devices whith p-n junction, including Space Solar Cells (SSC) on the base of Si, GaAs, InP, InGaP/GaAs by using ...
  • Birefringence in Anisotropic Crystals CuGa(Al)S2 and Based on Them Optical Filters 
    NEMERENCO, Lucretia; MASNIC, Alisa; MIROVSCHII, Vladimir; IVANENCO, Iurii (Technical University of Moldova, 2013)
    In uniaxial birefringence crystals are observed two refractive index of refraction (no and ne) with its dispersion curves, that can intersect for a given wavelength. Phenomenon of intersect the dispersion curves no and ne ...
  • CANopen Protocol for High Precision Ground Station Antenna Positioning 
    CANDRAMAN, Sergiu (Technical University of Moldova, 2013)
    The paper deal with high precision ground station antenna control and positioning using CANopen protocol. CANopen is designed for motion-oriented machine control networks, such as handling systems. The diagram of the antenna ...
  • Superconducting state in the twofold degenerate Anderson impurity model 
    MOSCALENCO, V. A.; DOHOTARU, L. A.; DIGOR, D. F.; CEBOTARI, I. D. (Technical University of Moldova, 2013)
    The twofold degenerated Anderson impurity model in superconducting state is investigated and the strong electronic correlations of impurity ion are taken into account by elaborating suitable diagram technique. We obtain ...
  • PSpice Model of Hydrogen Nanosensors and Ultraviolet Photodetectors 
    POSTICA, Vasile; CREŢU, Vasilii; LUPAN, Oleg (Technical University of Moldova, 2013)
    In this work is presented PSpice circuit models of hydrogen gas nanosensor using individual zinc oxide nanowire with fast response at room temperature and of an individual ZnO microwire-based ultraviolet (UV) photodetector. ...
  • Porous vs. Magnetron RF Sputtering Of InP for Portable THz-TDS in Pharmaceutical and Medical Applications 
    SIRBU, L.; DANILA, M.; MULLER, R.; GHIMPU, L.; DOBLETBAEV, R.; DASCALU, T.; GRIGORE (SANDU), O.; SARUA, A.; URSAKI, V. (Technical University of Moldova, 2013)
    We developed a combination of technology for deposition contacts/wires upon nanoporous InP thin film structures and RF sputtering InP films. Indium phosphide (InP) films were deposited onto glass substrate using RF magnetron ...
  • Peculiarity of Superconducting and Galvanomagnetic Properties of Bicrystals of 3D Topological Insulator Bi1-x Sbx (0,07≤ x ≤ 0,2) 
    MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; PALEWSKI, T.; MUNTEANU, V.; CHISTOL, V. (Technical University of Moldova, 2013)
    We present the results of investigation of magnetic properties and high-field (up to 40 T) galvanomagnetic phenomena in bicrystals of 3D topological insulator Bi1−x Sbx (0.07 < x <0.22) with nanowidth interfaces (~100 nm). ...
  • Optical Properties of TlGaS2 Crystals 
    MASHNIC, A.; NEMERENCO, L.; SYRBU, N. N.; URSAKI, V. V.; ZALAMAI, V. V. (Technical University of Moldova, 2013)
    The anisotropy of transmission spectra was investigated in TlGaS2 crystals. An intensive transmission line was found in samples placed between two crossed polarizers. Ground and excited states of excitons were detected in ...
  • Luminescence of Single Crystals of Manganesedoped Zinc Indium Binary Sulfides 
    ARAMA, Efim; VOVC, Victor; GHEORGHITA, Eugene Iv.; PINTEA, Valentina (Technical University of Moldova, 2013)
    Radiative recombination spectra of Mn-doped zinc tioindat single crystals have been analyzed in the work. The emission spectra interval close to its maximum (1,91±0,2) eV contains a number of the special features which ...
  • The Device for Conversion and Displaying Ecological Information Using Sensors on the Base of ZnO Films 
    SHISHIANU, S.; VERJBITKI, V.; SHISHIANU, T.; MACHIDON, A. (Technical University of Moldova, 2013)
    Gas-sensors based on ZnO films give an opportunity to measure some parameters of gase-medium in a large band of temperature and pressure. In this article is described the device which allows measuring and imaging on display ...
  • Photoelectric Properties of Nanostuctured Layers 
    DOROGAN, Valerian; VIERU, Tatiana; VIERU, Stanislav; DOROGAN, Andrei (Technical University of Moldova, 2013)
    The paper is focused to study the photosensitivity modulation in crystalline and nanostructured materials. The photoresistor with modulated photosensitivity on the basis of III-V compounds was elaborated. In the results ...

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