Articole din publicaţii internaţionale: Recent submissions

  • Two-Dimensional Metallo-Semiconductor Networks for Electronic and Photonic Applications 
    TIGINYANU, Ion; MONAICO, Eduard; URSAKI, Veaceslav (The Electrochemical Society, 2019)
    Two-dimensional metallo-semiconductor networks have been fabricated by pulsed electrochemical deposition of Pt inside porous GaP membranes with parallel pores possessing diameters in the micrometer and sub-micrometer ranges. ...
  • Efficient focusing with a concave lens based on a photonic crystal with an unusual effective index of refraction 
    FOCA, E.; FÖLL, H.; DASCHNER, F.; SERGENTU, V. V.; CARSTENSEN, J.; FREY, S.; KNÖCHEL, R.; TIGINYANU, I. M. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2005)
    This work reports measurements with a concave lens based on a photonic crystal (PC) structure, which was designed to have an effective index of refraction neff < 1 or even < 0, and which is intended as a model system for ...
  • Nucleation and growth of macro pores on (100) n-type Ge 
    LANGA, S.; CARSTENSEN, J.; TIGINYANU, I. M.; FÖLL, H. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2005)
    The authors investigate the nucleation and growth of macro pores on n-type Ge in the dark and with back side illumination. We show that nucleation on Ge is strongly dependent on the surface defect structure and therefore ...
  • Engineering the morphology of porous InP for waveguide applications 
    LANGA, S.; LÖLKES, S.; CARSTENSEN, J.; HERMANN, M.; BÖTTGER, G.; TIGINYANU, I. M.; FÖLL, H. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2005)
    We research the possibilities for engineering the morphology of porous structures in n-InP. Lithographic patterning of the sample surface before anodic etching is shown to modify considerably the electric field distribution ...
  • Yellow Luminescence and Optical Quenching of Photoconductivity in Ultrathin Suspended GaN Membranes Produced by Surface Charge Lithography 
    POPA, V.; BRANISTE, T.; STEVENS-KALCEFF, M. A.; GERTHSEN, D.; BRENNER, P.; POSTOLACHE, V.; URSAKI, V.; TIGINYANU, I. M. (American Scientific Publishers, 2013)
    Spatial and spectral distribution of cathodoluminescence as well as photoelectrical properties under excitation with two beams of monochromatic radiation of various wavelengths are investigated in ultrathin suspended GaN ...
  • Retroreflection of light from nanoporous InP: correlation with high absorption 
    PRISLOPSKI, S. Ya.; TIGINYANU, I. M.; GHIMPU, L.; MONAICO, E.; SIRBU, L.; GAPONENKO, S. V. (Springer Nature Switzerland, 2014)
    Pronounced retroreflection behavior is reported for a fishnet nanoporous strongly absorbing semiconductor material. Retroreflection appears along with diffusive specular reflection for all angles of incidence for light ...
  • Effects of the Cations on the Raman Spectra of Sulphur Defect Chalcopyrites 
    TIGINYANU, I. M.; LOTTICI, P. P.; RAZZETTI, C.; GENNARI, S. (IOP Publishing, 1993)
    We report the Raman spectrum of defect chalcopyrite compounds CdAl2S4, CdGa2S4, ZnGa2S4 and of the isostructural mixed compounds Zn0.7Cd0.3Al2S4, ZnGa0.2Al1.8S4 and ZnGa0.8Al1.2S4. The role of the cations on the vibrational ...
  • Engineering porous III-Vs 
    FÖLL, H.; LANGA, S.; CARSTENSEN, J.; LÖLKES, S.; CHRISTOPHERSEN, M.; TIGINYANU, I. M (ELSEVIER, 2003)
    Porous semiconductors exhibit new and unexpected properties compared to the bulk materials. In III-Vs, many, many new features with respect to optical properties have emerged during the last few years for certain pore ...
  • Self-Assembled Monolayer of Au Nanodots Deposited on Porous Semiconductor Structures 
    TIGINYANU, I.; MONAICO, E.; NIELSCH, K. (The Electrochemical Society, 2015)
    We demonstrate the possibility to cover the surface of GaP and InP porous structures by a self-assembled monolayer of electrochemically deposited nanoscale Au nanodots. After nucleation, each dot was found to increase in ...
  • Refractive index dispersion deduced from lasing modes in ZnO microtetrapods 
    URSAKI, V. V.; ZALAMAI, V. V.; TIGINYANU, I. M.; BURLACU, A.; RUSU, E. V.; KLINGSHIRN, C. (American Institute of Physics, 2009)
    High optical quality, well end leg faceted ZnO microtetrapods sustaining lasing modes with quality factors of 2500–3000 have been grown by carbothermal chemical vapor deposition. It is shown that lasing is due to longitudinal ...
  • Nanoperforated and Continuous Ultra-Thin GaN Membranes 
    TIGINYANU, I. M.; POPA, V.; STEVENS-KALCEFF, M. A. (The Electrochemical Society, 2011)
    We report on fabrication of ultra-thin GaN membranes of nanometer scale thickness, by using the concept of surface charge lithography based on low-energy ion treatment of the sample surface with subsequent photoelectrochemical ...
  • 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 ...
  • Memristive GaN ultrathin suspended membrane array 
    DRAGOMAN, Mircea; TIGINYANU, Ion; DRAGOMAN, Daniela; BRANISTE, Tudor; CIOBANU, Vladimir (IOP Publishing, 2016)
    We show that ultrathin GaN membranes, with a thickness of 15 nm and planar dimensions of 12 × 184 μm2, act as memristive devices. The memristive behavior is due to the migration of the negatively-charged deep traps, which ...
  • Raman spectroscopy of porous and bulk GaP subjected to MeV-ion implantation and annealing 
    SARUA, A.; IRMER, G.; MONECKE, J.; TIGINYANU, I. M.; SCHWAB, C.; GROB, J.-J.; HARTNAGEL, H. L. (American Institute of Physics, 2000)
    Porous layers on (100)-oriented n-type liquid encapsulated Czochralski grown GaP crystals were fabricated by electrochemical etching in a H2SO4 aqueous solution and analyzed by scanning electron microscopy. 12C+ ions were ...
  • Modificarea calităţii pandişpanului aglutenic din făină de soriz (Sorghum oryzoidum) în perioada de păstrare 
    SIMINIUC, Rodica; CHIRSANOVA, Aurica; COŞCIUG, Lidia; DESEATNIC-CILOCI, Alexandra (Sibiu Alma Mater University, 2011)
    În prezent numărul persoanelor cu intoleranţă la gluten creşte rapid, lărgindu-se totodată arealul geografic de răspîndire. Lărgirea asortimentului de produse de patiserie aglutenice este o tendinta actuală. Au fost elaborate ...
  • Modificarea calităţii biscuiţilor aglutenici obţinuţi din făină de soriz (Sorghum oryzoidum) în perioada de păstrare 
    SIMINIUC, Rodica; CHIRSANOVA, Aurica; COŞCIUG, Lidia; DESEATNIC-CILOCI, Alexandra (Sibiu Alma Mater University, 2011)
    Elaborarea şi cercetarea produselor alimentare aglutenice este actuală în condiţiile creşterii rapide a numărului de celiaci în lume. Scopul acestui studiu a fost stabilirea termenului limită de păstrare a patru varietăţi ...
  • Researches concerning iron bioavailability in complex foods 
    CIOBANU, Corina; MOTRUC, Natalia (Sibiu Alma Mater University, 2011)
    Iron bioavailability in fortified products was researched in vivo conditions. It is established, that the consumption of iron fortified bread products promotes improvement of the basic haematological indices. In the presence ...
  • Influenţa inulinei asupra calităţii produselor de panificaţie 
    LUPASCO, Andrei; BANTEA–ZAGAREANU, Valentina; BOIŞTEAN, Olga; GHENDOV – MOŞANU, Aliona; ROTARI, Elena (Sibiu Alma Mater University, 2011)
    Un obiectiv important al specialiştilor din industria alimentară este obţinerea de produse dietetice destinate diabeticilor cu diferite adaosuri care să-şi păstreze atît calitatea senzorială cît şi indicii fizicochimicii ...
  • Impactul procesării tehnologice asupra conţinutului de celuloză din urzici şi leurdă 
    GUTIUM, Olga (Sibiu Alma Mater University, 2011)
    Regimul nutriţional este unul din pilonii de bază ai concepţiei alimentaţiei raţionale şi echilibrate, fiind şi un factor de risc major în apariţia maladiilor alimentaro – dependente, în caz de insuficienţe. Utilizarea ...
  • Grape seed drying in fluidized layer using SHF energy 
    BERNIC, Mircea; MAŢCO, Marcel; CIOBANU, Eugeniu; DOHMILĂ, Iurie; CHIRIAC, Nicolae (Sibiu Alma Mater University, 2011)
    The grape seeds among the by-products whose recovery is considered to be interesting for all the wine making countries. Although the grape seeds are considered as waste from grapes processing in the wine industry, they ...

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