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Browsing Conferinţa ICNBME - International Conference on Nanotechnologies and Biomedical Engineering by Subject "luminescence"

Browsing Conferinţa ICNBME - International Conference on Nanotechnologies and Biomedical Engineering by Subject "luminescence"

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  • Cathodoluminescence and X-Ray Luminescence of ZnIn2S4 and CdGa2S4 Single Crystals 
    ARAMA, E.; PÎNTEA, V.; SHEMYAKOVA, T. (Universitatea Tehnică a Moldovei, 2021)
    Zinc thioindate and gallium thiogallate single crystals were grown by a chemical vapor transport method. The cathodoluminescence and X-ray luminescence spectra of ZnIn2S4 and CdGa2S4 single crystals were studied. From ...
  • Characterization of TiO2 Nanoparticles and ZnO/TiO2 Composite Obtained by Hydrothermal Method 
    RUSU, E.; URSAKI, V.; GUTUL, T.; VLAZAN, P.; SIMINEL, A. (Tehnica UTM, 2015)
    ZnO and TiO2 nanoparticles as well as ZnO/TiO2 core/shell structures have been prepared by hydrothermal method and characterized by means of scanning electron microscopy, XRD and EDX analysis, FTIR and luminescence ...
  • Exciton Luminescence in In0.3Ga0.7As/GaAs Quantum Well Heterostructures 
    KAPON, Eli; MEREUŢA, Alexandru; DOROGAN, Andrei; DRAGUTAN, Nicolae; VIERU, Tatiana (Technical University of Moldova, 2011)
    Radiation maxima were observed in photoluminescence spectra of GaAs/ In0.3 Ga0.7As/ GaAs in case of 632.8nm and 532nm He-Ne laser excitation conditioned by the recombination from ground (e1-hh1, e1-lh1) and excited (e2-hh2, ...
  • The Impact of Porosification Upon Luminescence of HVPE Grown GaN and the Influence of the Porous Layer Upon the Quality of the Overgrown GaN Film 
    BRANISTE, T.; POPA, V.; MARTIN, D.; CARLIN, J.-F.; URSAKI, V.; GRANDJEAN, N.; TIGINYANU, I. (Tehnica UTM, 2015)
    In this paper, we show that the quality of the porous layers produced by photoelectrochemical (PEC) etching of HVPE GaN in oxalic acid is better than that of the initial material, and the quality of GaN films overgrown on ...
  • Luminescence Properties of a Novel Eu3+ Dinuclear Coordination Compound 
    VERLAN, V. I.; CULEAC, I. P.; BORDIAN, O.; ZUBAREVA, V. E.; BULHAC, I.; IOVU, M. S.; ENACHESCU, M.; SIMINEL, N. A.; NEDELEA, V. V. (Tehnica UTM, 2019)
    The paper presents experimental results on a novel Eu3+ dinuclear coordination compound [Eu(µ2-OC2H5)(NO)3(phen)]2•phen with high emission quantum yield. The complex has been characterized by photoluminescence (PL) ...
  • Morphology and Luminescence Properties of ZnO layers produced by Magnetron Spattering 
    RUSU, Emil; GHIŢU, Irina; PRILEPOV, Vladimir; ZALAMAI, Victor; URSAKI, Veaceslav (Technical University of Moldova, 2011)
    We show that the morphology and the luminescence properties of ZnO layers produced by magnetron sputtering can be controlled by technological parameters of sputtering, particularly by the ratio of argon to oxygen gases in ...
  • New take-off of Gallium Nitride 
    TIGINYANU, Ion (Technical University of Moldova, 2015)
    Gallium Nitride (GaN) is a wide-band-gap semiconductor compound (Eg = 3.4 eV at 300 K) which over the last decades played a major role in the development of modern solid-state lighting industry. An intensive investigation ...
  • Rare earth activated phosphors for different applications 
    NAZAROV, Mihail (Tehnica UTM, 2013)
    For the purpose of development of highly energy-efficient light sources, one needs to design highly efficient green, red and yellow phosphors, which are able to absorb excitation energy and generate emissions. Using double ...
  • Surface Plasmon Enhanced Luminescence from Ag covered Anatase Titania Nanotubes 
    ENACHI, Mihai; URSAKI, Veaceslav; SERGENTU, Vladimir (Technical University of Moldova, 2011)
    We show that coating of titania nanotubes by Ag layers with thickness of 5 – 20 nm leads to the increase of the near-bandgap photoluminescence intensity by one order of magnitude, while the effect of Au coatings is ...

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