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Browsing Articole din publicaţii naţionale by Author "TIGINYANU, I. M."

Browsing Articole din publicaţii naţionale by Author "TIGINYANU, I. M."

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  • Characterization of structure and luminescence of titania nanotubes 
    ENACHI, M.; TROFIM, V.; COSEAC, V.; TIGINYANU, I. M.; URSAKI, V. V. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2009)
    The morphology, structural, and optical properties of porous titania layers prepared by electrochemical oxidation of Ti foils are studied as a function of technological conditions of preparation and post-electrochemical-oxidation ...
  • The Impact of the Discreteness of Low-fluence Ion Beam Processing on the Spatial Architecture of GaN Nanostructures Fabricated by Surface Charge Lithography 
    TIGINYANU, I. M.; VOLCIUC, O.; STEVENS-KALCEFF, M. A.; POPA, V.; GUTOWSKI, J.; WILLE, S.; ADELUNG, R.; FOLL, H. (Academia de Ştiinţe a Moldovei, 2013)
    We show that the descrete nature of ion beam processing used as a component in the approach of surface charge lithography leads to spatial modulation of the edges of the GaN nanostructures such as nanobelts and nanoperforated ...
  • Nanostructured ZnO produced from ZnTe for random laser applications 
    ZALAMAI, V.; BURLACU, A.; POSTOLACHE, V.; RUSU, E. V.; URSAKI, V. V.; TIGINYANU, I. M. (Academy of Sciences of Moldova, 2010)
    We propose to produce ZnO nanostructured material by thermal treatment in oxygen ambient of bulk ZnTe crystals and nanowires obtained by electrochemical treatment. Bulk ZnTe crystals are transformed into granular ZnO media ...
  • Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications 
    SERGENTU, V.; ZALAMAI, V.; ENACHI, M.; URSAKI, V. V.; TIGINYANU, I. M. (Academy of Sciences of Moldova, 2010)
    We perform numerical calculation in order to optimize the morphology of metallized titania nanotubes from the point of view of flat lens application based on NIM. An efficient multiple-scattering approach is used to calculate ...
  • Porous morphologies in Si, III-V and II-VI compounds: a comparative study 
    LANGA, S.; MONAICO, E.; FÖLL, H.; TIGINYANU, I. M. (Technical University of Moldova, 2009)
    Porous morphologies obtained during the anodization of semiconductors are mainly determined by particular characteristics of the semiconductor-electrolyte interfaces and the bulk properties of the semiconductor itself. ...
  • Responsivity and detectivity of Zn0.8Mg0.2O/p-Si prepared by spin coating and aerosol deposition method 
    MORARI, V.; RUSU, E.; URSAKI, V.; TIGINYANU, I. M. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu", 2021)
    In this paper, we present data concerning responsivity and detectivity of Zn0.8Mg0.2O/p-Si photodetectors based on thin films prepared by spin-coating and aerosol deposition methods from 0.35 M aqueous solution using Zn ...
  • Semiconductor-oxide nanocomposites based on porous semiconductors 
    SIRBU, L.; URSAKI, V. V.; TIGINYANU, I. M.; DOLGALEVA, Ks.; BOYD, R. W. (Academy of Sciences of Moldova, 2007)
    Rare-earth containing oxide nanocomposites are prepared of porous GaP and GaAs templates in a controlled fashion. The initial porous GaP and GaAs networks are replaced by GaPO4 and Ga2O3 structures, respectively, during ...
  • Structure and luminescence properties of porous alumina templates doped with rare earth elements and transition metals 
    ENACHI, M.; TROFIM, V.; COSEAC, V.; TIGINYANU, I. M.; URSAKI, V. V. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2009)
    We propose to develop phosphor materials on the basis of porous alumina templates doped with rare earth elements and transition metals. This issue is especially important in connection with the development of random lasers, ...
  • ZnO: Eu red phosphor grown from Na2B4O7 melt 
    RUSU, E. V.; TIGINYANU, I. M.; URSAKI, V. V.; STRATAN, G. I.; SYRBU, N. N.; ALBU, S. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2007)
    A ZnO-based red phosphor was grown from a Na2B4O7 melt and the efficiency of Eu3+ ion excitation was demonstrated. The analysis of the emission related to the Eu3+ 4f-4f intrashell transitions suggests that the phosphor ...

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