Facultatea Calculatoare, Informatică şi Microelectronică: Recent submissions

  • Band Gap Size Dependence of Topological Insulator Bi2Te3 Nanotube 
    BEJENARI, Igor; KANTSER, Valeriu (Technical University of Moldova, 2011)
    We study the electronic structure of a cylindrical nanotube made of a topological insulator Bi2Te3. The calculation was made in the framework of the kp theory near the Γ point of the surface Brilloiun zone. A band gap size ...
  • Surface Plasmon Enhanced Luminescence from Au covered Titania Nanotubes burned in a Methane Flame 
    ENACHI, Mihail (Technical University of Moldova, 2011)
    It is shown that coating by Au layers with thickness of 5 – 10 nm of titania nanotubes with anatase structure produced by burning the as-electrochemically-prepared nanotubes in a methane flame leads to the increase of the ...
  • Empirical Linearly- Hyperbolic Approximation of the I-V Characteristic of the p–n Junction Devices 
    PENIN, Alexandr; SIDORENCO, Anatolie (Technical University of Moldova, 2011)
    Empirical linearly-hyperbolic approximation of the I-V characteristic of diodes and solar cell is presented. This approximation is based on hyperbolic dependence of a current of the p–n junctions on voltage for large ...
  • Deviations from Wiedemann-Franz law in quasi-one-dimensional organic crystals 
    CASIAN, Anatolie; BALMUS, Ion; DUSCIAC, Viorel (Technical University of Moldova, 2011)
    The physical reasons that lead to deviations from the Wiedemann-Franz law in low-dimensional organic crystals with electronic type conduction are investigated. The kinetic coefficients were modeled as functions of Fermi ...
  • Analysis of Active Two-Port Circuits with Variable Loads on the Basis of Projective Geometry 
    PENIN, Alexandr (Technical University of Moldova, 2011)
    For two-port circuit of direct current the problem of recalculation of the changeable load currents is considered. The approach on the basis of projective geometry is used for interpretation of changes or "kinematics" of ...
  • Efectul fotovoltaic şi caracteristicile celulelor solare cu P-N jocţiune radială în nanofire 
    CANŢER, V.; DRAGUTA, S. (Technical University of Moldova, 2011)
    Un nou model de celula solară format dintr-o retea de nanofire dens aranjate, unde fiecare nanofir dispune o jonctiune p-n în directie radială, si sînt orientate paralel cu direcţia de propagare a luminii, duce la separarea ...
  • Atom–molecular conversion in regime of selfacquisition 
    ZINGAN, A. P.; KHADZHI, P. I. (Technical University of Moldova, 2011)
    It was studied the dynamic of atom–molecular conversion in condition of bose – Einstein condensate with formation of homonuclear molecule in regime of self-acquisition. We received the conditions of appearance of ...
  • 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 ...

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