2011: Recent submissions

  • Investigation of thin optically anisotropic ZnO films placed in a strong uniform magnetic field 
    VENGER, E. F.; IEVTUSHENKO, A. I.; MELNICHUK, L. Yu.; MELNICHUK, O. V. (Technical University of Moldova, 2011)
    We present the results of IR spectroscopy and attenuated total reflection (ATR) investigations of the properties of polar optically anisotropic ZnO films on hexagonal 6H-SiC single crystals. The ATR and IR reflection spectra ...
  • Spectrele de rezonanţă gama Mössbauer în antimonidul de galiu dopat cu Fe 
    GHEORGHIŢĂ, Eugen; MIHĂLACHE, Alexei; TURTĂ, Constantin (Technical University of Moldova, 2011)
    În această lucrare se prezintă pentru discuţie rezultatele studierii spectrelor de rezonanţa nucleară gama (Spectrelor Mössbauer, SM) al antimonidului de galiu dopat cu izotopul 57Fe în diapazonul de concentraţii (1÷3 % ...
  • MAD preparation of manganites based multilayered structures 
    SAPOVAL, Oleg (Technical University of Moldova, 2011)
    Metalorganic aerosol deposition is a suitable technique for the synthesis of a wide range of complex oxides thin films. The present paper reports on growth of high quality multilayered structures on the base of functional ...
  • Switching Effect in Transverse Thermopower in Bi Microwires 
    KONOPKO, Leonid (Technical University of Moldova, 2011)
    At room temperature We have investigated the transverse thermopower in thin single-crystal bismuth microwires. The single-crystal nanowire samples in the diameter range 2 - 15 μm were prepared by the high frequency liquid ...
  • Transport theory of Schottky barrier diodes 
    KLYUKANOV, A. A.; GASHIN, P. A.; SCURTU, R. (Technical University of Moldova, 2011)
    A microscopic many-body transport approach for electronic properties of spatially inhomogeneous systems is developed at the fully quantum-mechanical level by means of plane wavelets second quantization representation. It ...
  • Thermoelectric Properties of Wires Bi2Te3 in the Glass Coating p and n Type 
    MEGLEI, Dragosh; CUROSHU, Nikolai; STICH, Ivan (Technical University of Moldova, 2011)
    The aim of our research was to prepare micro- and nanowires of n- and p-type Bi2Te3 in glass insulation and to study their thermoelectric properties as a function of heat treatment, i.e., annealing, recrystallization, and ...
  • Contributions to the development of acid battery charging regulator from photovoltaic panels with MPPT function 
    GANGAN, Sergiu; TROFIM, Viorel (Technical University of Moldova, 2011)
    This charge controller can be used with all different types of photovoltaic panels and batteries. Its control unit generates variable 0-100% duty cycle, resulting in efficient battery charging. To optimize the energy losses ...
  • Термоэлектрические эффекты в тонких нитях Bi1-х Sbх 
    БОДЮЛ, Павел; ПОПОВ, Иван; МОЛОШНИК, Евгений; ДРАГУЦАН, Николай; ГРИЦКО, Роман; КОТЫРШЕВ, Сергей (Technical University of Moldova, 2011)
    В данной работе изучалось комбинированное воздействие продольного магнитного поля и упругого растяжения на термоэлектрические свойства тонких нитей Bi0.88Sb0.12, полученных по методу Улитовского, и легированных донорными ...
  • Light and Thermal Induced Modification of the Refractive Index in As45S15Se40 Glasses 
    IOVU, M. S.; BENEA, V. G.; COLOMEICO, E. P.; COJOCARU, I. A. (Technical University of Moldova, 2011)
    The experimental investigations of the influence of the light irradiation on the optical parameters of amorphous As45S15Se40 thin films prepared by „flash” thermal evaporation was investigated. From the experimental ...
  • Particularităţile de structură a spectrelor de iradiere ale tioindatului de zinc dopat cu mangan (ZnIn2S4 :Mn) 
    ARAMA, E.; GHEORGHITA, E.; PINTEA, V. (Technical University of Moldova, 2011)
    The present paper analyzes the structure of radiation spectra recorded for ZnIn2S4 doped (ZnIn2S4 :Mn), using different ways of excitement. It showed some features identified as transitions optical impurity type intercentru.
  • Structura spectrelor de iradiere a antimonidului de galiu dopat cu stibiu 
    GHEORGHIŢĂ, Eugen; GHEORGHIŢĂ, Andrian; ZLOTEA, Olga; POSTOLACHI, Igor (Technical University of Moldova, 2011)
    In the present paper it is analyzed, using the Alentz-Fox method, the structure of the radiation spectrum of gallium antimonide doped with antimony at 2K temperature in absence of the external magnetic field. It is ...
  • Economia ca suport inovaţional pentru dezvoltarea ştiinţei 
    BARANOV, Simion; CHEBAŞ, Victor (Technical University of Moldova, 2011)
    This report represents a concise analysis of the applicative science management in the planned economy and its changes to the market economy during 20 years of transition, based on historic data of scientific research ...
  • Si, Ge and SiGe wires for sensor application 
    DRUZHININ, A. A.; KHOVERKO, Yu. M.; OSTROVSKII, I. P.; NICHKALO, S. I.; NIKOLAEVA, A. A.; KONOPKO, L. A.; STICH, I. (Technical University of Moldova, 2011)
    Resistance and magnetoresistance of Si, Ge and Si-Ge micro- and nanowires were studied in temperature range 4,2-300 K at magnetic fields up to 14 T. The wires diameters range from 200 nm to 20 m. Ga- In gates were created ...
  • The Undular Model as Basis for Long-Range Ordered Structures 
    MIRONOV, Bettin (Technical University of Moldova, 2011)
    As a result of research of wave function properties it was found that the waves form stable states of arbitrary complexity and this allows to admit that wave functions can serve as a physical basis for an algebra of ...
  • Optical properties and photoconductivity of amorphous As2Se3:Sn thin films 
    HAREA, D. V.; IOVU, M. S.; COLOMEICO, E. P.; COJOCARU, I. A.; HAREA, E.; IOVU, M. A. (Technical University of Moldova, 2011)
    From scientific point of view, because the composition of chalcogenide glass (ChG) determine the kind of structural units and the mean coordination number, in the present work the amorphous films of the As2Se3:Sny (y=0÷10.0 ...
  • Bifilar microwires based on bismuth and tin 
    MEGLEI, D.; DYNTU, M. (Technical University of Moldova, 2011)
    These studies and analysis of the literature data showed that these BMs can be used for the manufacture of sensing devices. In this work, we propose a technique of preparation of transducers using the studied BMs suitable ...
  • The Radiation Effects on Structural Defects and Reliability of High-k MOS Gate Dielectrics 
    SHISHIYANU, Sergiu T. (Technical University of Moldova, 2011)
    The effects of γ – irradiation on the physical and electrical properties of ZrO2 and HfO2 based high-k MOS structures were studied. The doses of γ –irradiation applied have been up to 80 Gray. The C-Vcharacteristics seeing ...
  • Effect of cadmium doping on some properties of glass-insulated bismuthbased microwires 
    MEGLEI, D.; DYNTU, M. (Technical University of Moldova, 2011)
    The results show the possibility of using microwires of cadmium doped bismuth as a magnetic field sensor. The technique of preparation of microresistors using the studied microwires is proposed; these microresistors have ...
  • Unconventional magnetic properties of La1-xBaxMnO3 thin films grown on SrTiO3(100) by metalorganic aerosol deposition 
    BELENCHUK, A.; CANTSER, V.; MOSHNYAGA, V.; SAPOVAL, O.; ZASAVITSKI, E. (Technical University of Moldova, 2011)
    Epitaxial La1-xBaxMnO3 thin films were grown on SrTiO3(100) substrates by metalorganic aerosol deposition technique. AFM surface analysis indicates a layer-by-layer growth mode. The occurrence of Laue thickness fringes in ...
  • Detection in the contacts with bismuth-antimony alloy when the surface states are in dynamic regime 
    KERNER, Iacov (Technical University of Moldova, 2011)
    Diode detectors (DD) are widely used in electronic information and communication systems. In this paper the numerical modeling of the electrical potential distribution and current passing in the contacts of niobium nitride ...

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