Articole

Recent Submissions

  • STEELE, J. A.; RADHANPURA, K.; LEWIS, R. A.; SIRBU, L.; TIGINYANU, I. M. (IEEE, 2014)
    Bulk (111) and (100) InP wafers and nanoporous membranes have been studied using free space time-domain spectroscopy. The nonlinear optical response is shown to be dependent on heavy ion (Kr+15, Xe+23) dose, crystallographic ...
  • SIRBU, L.; SERGENTU, V.; MULLER, R.; URSAKI, V.; TIGINYANU, I. M. (Springer Nature Switzerland, 2014)
    In this work we present the theoretical model of existence of ultrashort modes in low frequency region of the electromagnetic spectrum in a system of nanocilinders array. These modes have no analogue in a spectrum with ...
  • URSAKI, V. V.; TIGINYANU, I. M. (Springer-Verlag Berlin Heidelberg, 2014)
    Phase transitions in AIIBIII2XVI4 compounds with initial structures different from cubic spinel or tetragonal chalcopyrites and stannites are analyzed in this chapter on the instance of layered AIIInGaS4 crystals with Cd, ...
  • GHIMPU, Lidia; POTLOG, Tamara; RESMERITA, Ana-Maria; TIGINYANU, Ion; FARCAS, Aurica (Wiley Periodicals Inc., 2015)
    The hybrid organic-inorganic structure based on glass/(TCO)/nanoporous ZnO/poly[2,7-(9,9-dioctylfluorene)-alt-(5,5′-bithiophene)]/Ag that was prepared by physical deposition has been investigated. The structure of the ...
  • FÖLL, Helmut; GERNGROSS, Mark-Daniel; SAILOR, Michael J.; TIGINYANU, Ion (IOP Publishing, 2015)
    The first part of this issue focuses on the formation of porous semiconductor structures by diverse processing techniques: electrochemical etching, metal-assisted etching, and stain etching. The second part covers the ...
  • MONAICO, Elena I.; MONAICO, Eduard V.; URSAKI, Veaceslav V.; HONNALI, Shashank; POSTOLACHE, Vitalie; LEISTNER, Karin; NIELSCH, Kornelius; TIGINYANU, Ion M. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    A comparative study of the anodization processes occurring at the GaAs(111)A and GaAs(111)B surfaces exposed to electrochemical etching in neutral NaCl and acidic HNO3 aqueous electrolytes is performed in galvanostatic and ...
  • MORARI, Vadim; PANTAZI, Aida; CURMEI, Nicolai; POSTOLACHE, Vitalie; RUSU, Emil V.; ENACHESCU, Marius; TIGINYANU, Ion M.; URSAKI, Veaceslav V. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    A series of Zn1−xMgxO thin films with the composition range x = 0.00–0.40 has been prepared by sol–gel spin coating on Si substrates with a post-deposition thermal treatment in the temperature range of 400–650 °C. The ...
  • MOSKALENKO, Sveatoslav; TIGINYANU, Ion (Academia de Ştiinţe a Moldovei, 2017)
    Academician L. V. Keldysh left an indelible impression in the consciousness of many generations of physicists, who learnt from him and tried to align to him. His presentations at scientific conferences and seminars were ...
  • TIGINYANU, Ion (Universitatea Tehnică a Moldovei, 2019)
    We report on fabrication of three-dimensional architectures based on GaN microtubular structures (the so-called Aerogalnite or Aero-GaN) with nanoscopic thin walls which exhibit dual hydrophobic-hydrophilic behaviour. The ...
  • MORARI, Vadim; ZALAMAI, Victor; RUSU, Emil; MONAICO, Eduard; URSAKI, Veacheslav; NIELSCH, Kornelius; TIGINYANU, Ion (Academia de Ştiinţe a Moldovei, 2019)
    In this paper, we present results on preparation of NiO thin films by spin-coating method. The films have been deposited on n-Si (100) substrates from 0.35 M aqueous solution of nickel chloride - NiCl2 *6H2 O or nickel ...
  • POPA, Mihail; TIGINYANU, Ion (Moldova State University, 2018)
    În lucrare sunt prezentate rezultatele experimentale obținute la aplicarea PEDOT-PSS în calitate de strat de transport de goluri și a PC61BM ca strat de transport de electroni în celule solare de perovskite cu arhitectură ...
  • BRANISTE, Tudor; COBZAC, Vitalie; ABABII, Polina; PLESCO, Irina; RAEVSCHI, Simion; DIDENCU, Alexandru; MANIUC, Mihail; NACU, Viorel; ABABII, Ion; TIGINYANU, Ion (ELSEVIER, 2020)
    In this paper, we report on spatial redistribution of bone marrow mesenchymal stem cells loaded with magnetic nanoparticles under the influence of continuously applied magnetic field. Semiconductor nanoparticles were ...
  • MONAICO, Eduard; TIGINYANU, Ion; URSAKI, Veaceslav (IOP Publishing, 2020)
    In this review paper, we present a comparative analysis of the electrochemical dissolution of III–V (InP, GaAs, GaN), II–VI (ZnSe, CdSe) and SiC semiconductor compounds. The resulting morphologies are discussed, including ...
  • BRANISTE, Tudor; DRAGOMAN, Mircea; ZHUKOV, Sergey; ALDRIGO, Martino; CIOBANU, Vladimir; IORDANESCU, Sergiu; ALYABYEVA, Liudmila; FUMAGALLI, Francesco; CECCONE, Giacomo; RAEVSCHI, Simion; SCHÜTT, Fabian; ADELUNG, Rainer; COLPO, Pascal; GORSHUNOV, Boris; TIGINYANU, Ion (MDPI (Basel, Switzerland), 2020)
    In this paper, fabrication of a new material is reported, the so-called Aero-Ga2O3 or Aerogallox, which represents an ultra-porous and ultra-lightweight three-dimensional architecture made from interconnected microtubes ...
  • PLESCO, Irina; BRANISTE, Tudor; WOLFF, Niklas; GORCEAC, Leonid; DUPPEL, Viola; CINIC, Boris; MISHRA, Yogendra Kumar; SARUA, Andrei; ADELUNG, Rainer; KIENLE, Lorenz; TIGINYANU, Ion (AIP Publishing LLC, 2020)
    Here, we report on a new aero-material, called aero-ZnS, representing self-organized architectures made of ZnS hollow micro-tetrapod structures with nanoscale thin walls. The fabrication process is based on the hydride ...
  • MONAICO, Eduard V.; MONAICO, Elena I.; URSAKI, Veaceslav V.; TIGINYANU, Ion M. (The Electrochemical Society, 2020)
    A room-temperature two-step cost-effective electrochemical technology is proposed for the preparation of free-standing Au nanomembranes. A thin Au film with the thickness less than 100 nm was deposited by pulsed electroplating ...
  • FOCA, Eugen; FÖLL, Helmut; DASCHNER, Frank; SERGENTU, Vladimir V.; CARSTENSEN, Jürgen; KNÖCHEL, Reinhard; TIGINYANU, Ion M. (Cambridge University Press, 2005)
    This work focuses on photonic crystals (PC) that can be ascribed an effective index of refraction > 1 or even > 0. We investigate the possibility to design optical elements (in this case a lens) based on this type of PC. ...
  • LLOYD-HUGHES, J.; FAIST, J.; BEERE, H. E.; RITCHIE, D. A.; SIRBU, L.; TIGINYANU, I. M.; MERCHANT, S. K. M.; JOHNSTON, M. B. (Society of Photo-Optical Instrumentation Engineers, SPIE, 2009)
    Using terahertz time-domain spectroscopy we investigate how quantum, magnetic and electrostatic confinement alters the photoconductivity of nanostructured semiconductors. In 2.0 THz and 2.9THz GaAs/AlGaAs quantum cascade ...
  • MILEKHIN, Alexander; URSAKI, Veacheslav; SIRBU, Lilian; TOROPOV, Alexander; TIGINYANU, Ion; ZAHN, Dietrich R. T. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2009)
    In this paper we search for the possibilities of introducing porosity in InAs/AlAs/GaAs multilayer quantum dot structures as an additional tool for the modification of their phonon spectrum. Raman spectroscopy is used as ...
  • 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. ...

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