IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Subject "films"

Browsing Articole din publicaţii internaţionale by Subject "films"

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  • Artificial pinning centers created by Fe2O3 coating on MgB2 thin films 
    TAYLAN KOPARAN, E.; SURDU, A.; SIDORENKO, A.; YANMAZ, E. (ELSEVIER, 2012)
    MgB2 thin films were fabricated on MgO (100) single crystal substrates. First, deposition of boron was performed by rf magnetron sputtering on MgO substrates and followed by a post-deposition annealing at 850°C in magnesium ...
  • Binary Superimposed Gratings Formed by e-Beam Recording in Amorphous AsS Films 
    SERGEEV, S. A.; IOVU, M. S.; ENACHI, M. A. (American Scientific Publishers, 2014)
    Binary unidirectional superimposed diffraction gratings with grating periods of 0.9 μm and 1 μm were formed in amorphous AsS films by e-beam recording. The influence of recording sequence of index superimposed gratings on ...
  • Chalcogenide based gas sensors 
    TSIULYANU, D.; MARIAN, S.; LIESS, H.-D.; EISELE, I. (National Institute of Optoelectronics, Romania, 2003)
    Evidence for direct application of the chalcogenide semiconductors for gas sensing is considered. Two kinds of sensitive thin film structures have been fabricated and studied, using both artificial dimorphite (As4S3) and ...
  • Chalcogenide semiconductor based sensor for fast NO/sub 2/ detection 
    TSIULYANU, D.; MARIAN, S.; MIRON, V.; POTJE-KAMLOTH, K.; LIESS, H.-D. (IEEE, 2000)
    For the first time if is shown that thin films based on tellurium alloys exhibit high sensitivity to nitrogen dioxide at room temperature. The resistance of the films decreases reversibly in the presence of NO/sub 2/. ...
  • Chalcogenide-based chemical sensors for atmospheric pollution control 
    MARIAN, S.; TSIULYANU, D.; MARIAN, T.; LIESS, H.-D. (De Gruyter, 2001)
    The authors report about characterization of chalcogenide-based thin films, as a materials for gas-sensing applications. The sensing behavior of the As–S–Te films was tested with environmental pollutant gases such as NO2, ...
  • Change of the effective fluctuation dimensionality in vanadium thin films in a magnetic field 
    FOGEL, N. Ya.; SIDORENKO, A. S. (ELSEVIER, 1981)
    Lowering of the effective fluctuation dimensionality in the critical region has been found for thin superconducting vanadium films placed in strong perpensicular magnetic fields. The effect shows itself as a change of the ...
  • Characterization of thin ZnO film by optical second harmonic generation: experiment and theory 
    BUINITSKAYA, G.; KRAVETSKY, I.; KULYUK, L.; MIROVITSKII, V.; RUSU, E. (IEEE, 1998)
    Thin polycrystalline zinc oxide film deposed on glass substrate have been investigated by optical second harmonic generation (SHG). The intensity of SHG in dependence of rotation angle of fundamental beam polarization for ...
  • Charge transport mechanisms in quaternary glassy S -Te based thin films 
    CIOBANU, M.; TSIULYANU, D. (Institutul de Fizică Aplicată, 2016)
    Several compositions of quaternary materials in the As-S-Ge-Te system were synthesized by meltquenching technique and the respective thin films have been fabricated. Shown by AFM, SEM and X - ray analysis the nature of ...
  • Comparative study of hydrothermal treatment and thermal annealing effects on the properties of electrodeposited micro-columnar ZnO thin films 
    LUPAN, O.; PAUPORTÉ, T.; TIGINYANU, I. M.; URSAKI, V. V.; SONTEA, V.; ONO, L. K.; ROLDAN CUENYA, B.; CHOW, L. (ELSEVIER, 2011)
    We report a comparison of the role played by different sample treatments, namely, a low-temperature hydrothermal treatment by hot H2O vapor in an autoclave versus thermal annealing in air on the properties of ZnO films ...
  • Conductivity of nanoporous InP membranes investigated using terahertz spectroscopy 
    MERCHANT, S. K. E.; LLOYD-HUGHES, J.; SIRBU, L.; TIGINYANU, I. M.; PARKINSON, P.; HERZ, L. M.; JOHNSTON, M. B. (IOP Publishing, 2008)
    We have investigated the terahertz conductivity of extrinsic and photoexcited electrons in nanoporous indium phosphide (InP) at different pore densities and orientations. The form of electronic transport in the film was ...
  • Control of morphology and luminescense of nanostructured ZnO layers for lasing applications 
    BURLACU, Alexandru (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2016)
    A comparative analysis of various technological methods for the preparation of nanostructured ZnO films is performed in this work to identify technologies suitable for the development of laser structures. It is shown that ...
  • Critical field anisotropy in inhomogeneous superconducting films 
    SIDORENKO, A. S.; MINENKO, E. V.; FOGEL, N. Ya.; SHEKHTER, R. I.; KULIK, I. O. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 1979)
    Transition metal superconducting films are characterized, unlike the films of simple superconductors, by a number of anomalies.
  • Critical temperature oscillations and reentrant superconductivity due to the FFLO like state in F/S/F trilayers 
    KEHRLE, J.; ZDRAVKOV, V. I.; OBERMEIER, G.; GARCIA-GARCIA, J.; ULLRICH, A.; MÜLLER, C.; MORARI, R.; SIDORENKO, A. S.; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2012)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers, in which the establishing of a Fulde-Ferrell Larkin-Ovchinnikov (FFLO) like state leads to interference effects of the superconducting pairing wave function, form ...
  • DC conductivity and charge transport in vitreous As2S3Ge8 – Te films 
    CIOBANU, M.; TSIULYANU, D. (Virtual Company of Physics, 2018)
    Amorphous tellurium and Te based quaternary films have been grown onto both glassy (Pyrex) and ceramic Al2O3 substrates by a high speed thermal deposition in vacuum. The SEM and XRD analysis of the films was provided and ...
  • Design of titania nanotube structures by focused laser beam direct writing 
    ENACHI, Mihai; STEVENS-KALCEFF, Marion A.; SARUA, Andrei; URSAKI, Veaceslav; TIGINYANU, Ion (AIP Publishing LLC, 2013)
    In this work, we report on electrochemical fabrication of titania films consisting of nanotubes (NTs) and their treatment by focused laser beam. The results of sample characterization by optical and scanning electron ...
  • Detectors based on Pd-doped and PdO-functionalized ZnO nanostructures 
    POSTICA, V.; LUPAN, O.; ABABII, N.; HOPPE, M.; ADELUNG, R.; CHOW, L.; SONTEA, V.; ASCHEHOUG, P.; VIANA, B.; PAUPORTÉ, Th. (SPIE, 2018)
    In this work, zinc oxide (ZnO) nanostructured films were grown using a simple synthesis from chemical solutions (SCS) approach from aqueous baths at relatively low temperatures (< 95 °C). The samples were doped with Pd ...
  • Direct relief formation during holographic recording in nanomultilayers As2S3/Se 
    TRIDUH, G.; PRISACAR, A.; MESHALKIN, A.; ABASHKIN, V.; ACHIMOVA, E.; ENAKI, M. (Academia de Ştiinţe a Moldovei, 2014)
    The process of obtaining of high-efficiency relief holographic gratings includes laser irradiation and chemical etching of photosensitive film in a special selective solution. This process can be greatly enhanced by the ...
  • DLC Thin Films for Cardiovascular Stents 
    SHISHIYANU, S. T.; SHISHIYANU, T. S.; STEFANOV, P. S.; GUEORGUIEV, V. K. (Springer Nature Switzerland, 2013)
    Diamond-like carbon films (DLC films) for cardiovascular implants have successfully been prepared by dual-target unbalanced magnetron sputtering and Rapid Photothermal Processing (RPP). It is found that the sputtering ...
  • Effect of aging and temperature on alternating current conductivity of tellurium thin films 
    TSIULYANU, D.; MARIAN, T.; TIULEANU, A.; LIESS, H.-D.; EISELE, I. (Elsevier, 2009)
    The impedance spectra of tellurium films with interdigital platinum electrodes were investigated in air at temperatures between 10 and 50 °C. Cole–Cole analysis made it possible to assess time constants, resistance, and ...
  • Effect of chlorine on the conductivity of ZnO:Ga thin films 
    COLIBABA, G. V.; RUSNAC, D.; FEDOROV, V.; MONAICO, E. I. (Springer Nature Switzerland, 2021)
    An extensive study of the effect of various technological factors on the electrical properties of ZnO thin films obtained by DC magnetron sputtering of ZnO:Ga:Cl ceramic targets on glass substrates has been carried out. ...

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