Browsing 2005 by Issue Date

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  • Fuzzy controller for hand prosthesis 
    CHIVU, Catrina (Technical University of Moldova, 200)
    The present paper presents a fuzzy controller for the DC motor. This motor was designed starting from the idea that it will actuate hand prosthesis. Simulation of the motor and fuzzy controller was done using Delphi ...
  • Epitaxial In2O3 layers for chemical sensors: structural and surface characterization 
    BRINZARI, V.; KOROTCENKOV, G.; MASEK, K.; MATOLIN, V.; LIBRA, J.; KAMEI, M. (Technical University of Moldova, 2005)
    Indium oxide is one of the basic oxides, which have been extensively studied [1-3] due to its prominent applications for gas sensor design, and as modeling material, possessed of some interesting chemical and structural ...
  • Modern and low-cost technology with rapid photothermal processing for silicon solar cells fabrication 
    SHISHIYANU, Sergiu; SINGH, Rajendra; SHISHIYANU, Teodor; POOLE, Kelvin (Technical University of Moldova, 2005)
    The modern and inexpensive Nonconventional Technology with Rapid Photothermal Processing (RPP) and Rapid Thermal Processing (RTP) presents an important direction in the advanced technologies for micro-nano-electronics and ...
  • The role of water and oxygen adsorption/desorption processes in kinetics of In2O3 gas response 
    KOROTCENKOV, G.; BRINZARI, V.; BLINOV, I.; IVANOV, M.; STETTER, J. (Technical University of Moldova, 2005)
    Kinetics of gas response is a important parameter of chemical sensor determining its adaptability for various applications. Therefore the definition of the nature of processes controlling the rate of both gas response and ...
  • Influence of close space sublimation processing upon the granular growth of thin-film CdTe solar cells 
    GHIMPU, L.; URSAKI, V. V.; POTLOG, T.; SIRBU, L.; TIGINYANU, I. M. (Technical University of Moldova, 2005)
    In this paper we study the impact of CSS processing parameters upon the morphology of CdTe/CdS solar cells.
  • Sub-natural spectral lines via quantum interferences 
    BARDETSCHI, Profirii; MACOVEI, Mihai (Technical University of Moldova, 2005)
    The interaction of a single three-level ladder system with an external applied coherent field and damped via the surrounding electromagnetic field modes is investigated. It is demonstrated that the fluorescence spectral ...
  • Luminescence and trapping of light in porous InP networks 
    MONAICO, E.; URSAKI, V. V.; BURLACU, A.; TIGINYANU, I. M. (Technical University of Moldova, 2005)
    In this paper we investigate the effect of light trapping inside highly scattering InP porous layers on the luminescence properties of the material.
  • Luminescence of porous ZnSe layers 
    MONAICO, E.; URSAKI, V. V.; BURLACU, A.; TIGINYANU, I. M. (Technical University of Moldova, 2005)
    In this paper we compare the luminescence properties of bulk ZnSe crystals and porous layers prepared by photon-assisted electrochemical etching.
  • The photoelectrical properties of bilateral photoelectrochemical cell with nGaAs photo-electrode 
    TSIULYANU, I.; SIMASHKEVICH, A.; COJOCARU, A.; MACHIUGA, A. (Technical University of Moldova, 2005)
    The conversion of solar energy in electrical one is realized by solar cells as a result of absorption of solar energy and the separation of the photoexcited carriers by potential barriers in different solid state structures ...
  • Electrical properties of CuInSe2 crystals obtained by gas transport method 
    GASHIN, P.; KETRUSH, P.; NIKORICH, V.; SUMAN, V.; TAZLAVAN, V. (Technical University of Moldova, 2005)
    The ternary compounds of I-III-VI2 group and their solid solutions recently became one of the most promising materials for the fabrication of high efficiency solar cells. The unique physical properties and relatively low ...
  • Primary and secondary parameters of the coaxial microwire 
    COLPACOVICI, Iulian; AVRAM, Ion; GRITCO, Roman; PARVAN, Vladimir (Technical University of Moldova, 2005)
    The coaxial microwire is a perspective element for application in microelectronic devices of a radio-frequency wave band. Theoretical definition of primary (linear) parameters of a coaxial microwire is carried out. The ...
  • Polar - coordinates impedance meter with simulated resonance 
    NASTAS, Vitalie; CAZAC, Artur; NASTAS, Alexandru (Technical University of Moldova, 2005)
    The paper presents an impedance meter based on the effect of simulated resonance. The series resonance circuit supplied with an polar-coordinates impedance simulator, an current signal generator and an phase-sensitive ...
  • Quasi-vertical Schottky-structures for THZ-applications 
    COJOCARI, O.; SYDLO, C.; HARTNAGEL, H.-L.; TIGINYANU, I. M. (Technical University of Moldova, 2005)
    This paper presents the results of a systematical work on the improvement of high-frequency performance of quasi-vertical structures for THz-applications. Three versions of structure-design based on a quasi-vertical concept ...
  • Exciton properties of nanoscale heterostrucrures AlxGa1-xN/GaN/AlxGa1-xN 
    NIKA, D. L.; POKATILOV, E. P.; FOMIN, V. M.; DEVREESE, J. T. (Technical University of Moldova, 2005)
    For the heterostructures AlxGa1-x N/GaN/AlxGa1-x N with different thicknesses of the GaN quantum wells and AlxGa1-xN barriers, we use an exciton model, which includes the interaction of an electron and a hole with deformations ...
  • Oscillation of the superconducting critical temperature in superconductor/ferromagnet bilayers 
    ZDRAVKOV, V.; SIDORENKO, A.; RYAZANOV, V.; OBOZNOV, V.; HORN, S.; WIXFORTH, A.; TIDECKS, R. (Technical University of Moldova, 2005)
    Present work reports the results of proximity effect investigation for superconducting Nb-Cu/Ni bilayers with the thickness of the ferromagnetic layer (CuxNi1-x) being in sub-nanometer scale. It was found a non-monotonic ...
  • Excitonic luminescence of the tungsten disulfide crystals intercalated with halogen molecules 
    DUMCHENKO, Dmitry (Technical University of Moldova, 2005)
    The radiative recombination in the layered disulfide transition metal dichalcogenide compounds 2H-WS2:I2 and 2H-WS2:Br2 has been investigated. It is shown that the strong photoluminescence (PL) of these indirect band gap ...
  • Silicon nanocluster in silicon dioxide 
    SOKOLOV, V. I.; ZAMORYANSKAYA, M. V. (Technical University of Moldova, 2005)
    Cathodoluminescence spectra of silicate systems, have two well-known bands associated with native SiO2 defects, namely, a red one peaking at 1.9 eV (twofold-coordinated silicon). The position and intensity of these bands ...
  • Some properties of lead telluride wire crystals in glass isolation 
    DYNTU, M.; KANTSER, V.; MEGLEI, D. (Technical University of Moldova, 2005)
    Wire crystals (WC) based on lead telluride due to large free path lengths and large de Broglie wavelengths are convenient objects for observation and investigation of classical and quantum size effects. The paper describes ...
  • Determination of the optical nonlinear coefficients signs for ZnO films and single crystal 
    BUINITSKAYA, G. (Technical University of Moldova, 2005)
    The epitaxial thin films and single crystals of ZnO were investigated by optical second harmonic generation (SHG). A method for characterization the optical nonlinear coefficients of ZnO are proposed. It is shown that the ...
  • AFM Tapping Mode Phase-Imaging of Carbon Nanotubes 
    KOCH, Thomas (Technical University of Moldova, 2005)
    In the meantime AFM-imaging of carbon nanotubes has become a usual tool to get detailed information about the samples. This work introduces some new aspects in Tapping Mode Phase Imaging that may support the proper ...

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