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Browsing Articole ştiinţifice by Author "NEDEOGLO, D. D."

Browsing Articole ştiinţifice by Author "NEDEOGLO, D. D."

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  • Fröhlich vibrational modes in porous ZnSe studied by Raman scattering and Fourier transform infrared reflectance 
    IRMER, G.; MONAICO, E.; TIGINYANU, I. M.; GÄRTNER, G.; URSAKI, V. V.; KOLIBABA, G. V.; NEDEOGLO, D. D. (IOP Publishing, 2009)
    Arrays of parallel pores with a diameter of around 60 nm have been introduced by anodic etching in ZnSe single crystals with a free electron concentration of 4 × 1017 cm−3. Porosity-induced Fröhlich vibrational modes were ...
  • Growth of ZnCdS single crystals and prospects of their application as nanoporous structures 
    COLIBABA, G. V.; MONAICO, E. V.; GONCEARENCO, E. P.; NEDEOGLO, D. D.; TIGINYANU, I. M.; NIELSCH, K. (IOP Publishing, 2014)
    Substrates of wide band-gap II–VI semiconductor compounds are considered feasible for the fabrication of nanoporous matrices (NM) needed for templated growth of nanowires and nanotubes of solid-state materials promising ...
  • Impurity centers in ZnSe:Na crystals 
    COLIBABA, G. V.; NEDEOGLO, D. D.; URSAKI, V. V. (ELSEVIER, 2011)
    The influence of sodium impurity on photoluminescence (PL) spectra of ZnSe crystals doped in a growth process from a Se+Na melt is investigated. It is shown that the introduction of the impurity results in emergence of ...
  • Interaction of intrinsic defects with impurities in Al doped ZnSe single crystals 
    IVANOVA, G. N.; NEDEOGLO, D. D.; NEGEOGLO, N. D.; SIRKELI, V. P.; TIGINYANU, I. M.; URSAKI, V. V. (American Institute of Physics, 2007)
    We report on the results of a complex study of electrical (77−300K) and luminescence (10−300K) properties of n-ZnSen-ZnSe single crystals annealed in a Zn melt containing Al impurity at concentrations ranging from 0.1 to ...
  • Photoluminescence and vibrational properties of nanostructured ZnSe templates 
    MONAICO, E.; TIGINYANU, I. M.; URSAKI, V. V.; SARUA, A.; KUBALL, M.; NEDEOGLO, D. D.; SIRKELI, V. P. (IOP Publishing, 2007)
    Electrochemical etching of pores in as-grown and doped n-type ZnSe substrates is reported. To dope the samples the as-grown semi-insulating substrates were annealed in a Zn melt containing Al impurity at concentrations ...
  • Quasi-Ordered Networks of Metal Nanotubes Embedded in Semiconductor Matrices for Photonic Applications 
    TIGINYANU, I. M.; URSAKI, V. V.; MONAICO, E.; ENACHI, M.; SERGENTU, V. V.; COLIBABA, G.; NEDEOGLO, D. D.; COJOCARU, A.; FÖLL, H. (American Scientific Publishers, 2011)
    We report on templated fabrication of metal nanotubes by electrochemical pulsed deposition of Pt in InP and ZnSe porous layers with pore diameters from 40 to 400 nm. Ordered two-dimensional hexagonal arrays of pores are ...
  • Shallow donor states induced in ZnSe:Au single crystals by lattice deformation 
    NEDEOGLO, N. D.; NEDEOGLO, D. D.; SIRKELI, V. P.; TIGINYANU, I. M.; LAIHO, R.; LÄHDERANTA, E. (American Institute of Physics, 2008)
    Photoluminescence (PL) spectra are investigated in n-ZnSe single crystals at different temperatures from 4.4 to 300 K immediately after doping with Au from melt of Se+Au or Zn+Au and after storage of the doped samples for ...

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