Science and Society- the Use of Light: Recent submissions

  • 2D semiconductor-metal quasi-periodic structures for photonics 
    MONAICO, Eduard (Technical University of Moldova, 2015)
    We report on fabrication of metal nanotubes in semiconductor nanotemplates possessing ordered two-dimensional hexagonal arrays of pores grown in semiconductor substrates using anodic etching in neutral electrolyte.
  • Lasing properties of ZnO nanostructures 
    ZALAMAI, V. (Technical University of Moldova, 2015)
    On the base of zinc oxide was developed solar cells, although it efficiency is lower then industrial one using cost effective and uncomplicated technology of chemical bath deposition (CBD) makes this material very perspective. ...
  • Metal oxide nanowires for photodetectors and light emitting diodes 
    LUPAN, Oleg (Technical University of Moldova, 2015)
    In this presentation will be overviewed various nano- and microscale device structures made on a single metal oxide nanowire (ZnO, SnO2, CuO, etc.), as well as the use of their arrays. Nanowires were grown by several ...
  • Device for controlled hypothermia on Fuzzy logic algorithms 
    COJOCARU, Victor (Technical University of Moldova, 2015)
    We propose a sample of a device for therapeutics with hypothermia used in medical purposes for directed cooling of specific tissues using Peltier, elements. Peltier cooling elements allow elaboration of a small mobile ...
  • Technology transfer from research laboratory to industry 
    COJOCARU, A.; SCHMIDT-NIEPENBERG, H.; ADELUNG, R. (Technical University of Moldova, 2015)
    A strong collaboration between industry and the reserch laboratory helps both partners to find their common technological objectives resulting in the reduction of the development costs and risks. Nevertheless, the ...
  • Enhanced efficiency of p-GaN/n-ZnO light-emitting diodes by using NiO and ZnSe interlayers 
    SIRKELI, V. P.; YILMAZOGLU, O.; KÜPPERS, F.; HARTNAGEL, H. L. (Technical University of Moldova, 2015)
    We report the results from numerical simulations of p-GaN/n-ZnO light-emitting diodes (LEDs) with different architectures. p-GaN/n-ZnO, p-GaN/p-NiO/n-ZnO, and p-GaN/p-NiO/n-ZnSe/n-ZnO LED structures have been examinated ...
  • Entanglement and cooperative effects between the mode components of raman process in cavity and their analogy with atomic collective effects 
    ENAKI, Nicolae A. (Technical University of Moldova, 2015)
    It is proposed the cooperative excitation and absorption of three cavity modes which corresponds to pump, Stokes and anti-Stokes photons stimulated by the atomic inversion. The three modes collective Roman emission is ...
  • Random lasers: 30 years of development 
    URSAKI, V. V. (Universitatea Tehnică a Moldovei, 2015)
    In this report an overview of random lasers development is presented staring from the first theoretical prediction of random laser action by Letokhov about 50 years ago and the first experimental demonstration by Markushev ...
  • Semiconductor lasers a key element for new generation of optoelectronic systems 
    V. Z. TRONCIU, V. Z. TRONCIU (Technical University of Moldova, 2015)
    Semiconductor laser is a key element for different photonics devices. We report the results of numerical end experimental investigations of the dynamical behaviour of different types of semiconductor lasers. Very encouraging ...
  • Behaviour of endothelial cells on surfaces functionalized by GaN nanoparticles 
    BRANISTE, Tudor; TIGINYANU, Ion; HORVATH, Tibor; RAEVSCHI, Simion; CEBOTARI, Serghei; LUX, Marco; HAVERICH, Axel; HILFIKER, Andres (Technical University of Moldova, 2015)
    In this work, we identify the mechanisms of interaction between GaN semiconductor compound nanoparticles and living endothelial cells. Cellular viability and uptaking of nanoparticles by cells as well as adhesion and ...
  • X-Ray Diffraction and photocurrent measurements in CH3NH3PbI3 perovskite 
    PLESCO, Irina (Technical University of Moldova, 2015)
    Perovskite materials with their promising properties for photovoltaics have set the solar research world ablaze. Processability from solutions and low temperature crystallization are marvelous features of these materials ...
  • Chaos-based optical communication of semiconductor lasers with air gaps 
    OLOINIC, T.; RUSU, S. S.; TRONCIU, V. Z. (Technical University of Moldova, 2015)
    We report the numerical results of the dynamical behavior of a novel integrated semiconductor laser subject to multiple optical feedback loops. The laser’s setup consists of distributed feedback active section coupled to ...
  • Synchronization of chaos of quantum dots lasers under the influence of external cavity optical feedback 
    SANDUȚA; OLOINIC, T.; RUSU, S. S.; TRONCIU, V. Z. (Technical University of Moldova, 2015)
    We report the numerical results on the investigation of the dynamical behavior of a semiconductor laser with quantum dots active medium and a feedback from double cavity. Due to the influence of the external feedback, under ...
  • Luminescent and optical spectroscopy of ZnO crystals obtained by new method based on the halide vapor transport 
    COLIBABA, G. V.; SHTEPLIUK, I. I.; GONCEARENCO, E. P.; INCULET, I. (Technical University of Moldova, 2015)
    The photoluminescence (PL), transmittance and IR reflectance spectra were investigated for ZnO single crystals grown by the HCl chemical vapor transport technique. Electrical parameters were also calculated from the Hall ...
  • Multi sections semiconductor lasers with an air gap for chaos based communication 
    ANTOHI, I.; OLOINIC, T.; SANDUȚA, A.; RUSU, S. S.; TRONCIU, V. Z. (Technical University of Moldova, 2015)
    This paper reports the numerical results of the dynamical behavior of a novel integrated semiconductor laser subject to multiple optical feedback loops. The laser’s setup consists of distributed feedback active section ...
  • Expected thermoelectric properties of nanostructured TTT(TCNQ)2 crystals 
    SANDULEAC, I. I. (Technical University of Moldova, 2015)
    Advanced thermoelectric materials represent a keystone for development of new efficient devices for energy harvesting, local power generation from the waste heat and direct cooling systems. Thermal absorption of IR radiation, ...
  • Alternative technology for artificial stimulation of the motility of the gastrointestinal tract 
    POPA, V.; HOTINEANU, V.; SCORPAN, A.; CAZAC, A.; BRANISTE, T.; TIGINYANU, I. (Universitatea Tehnică a Moldovei, 2015)
    In most of the situations the direct electrical stimulation via electrodes of the gastrointestinal tract is not acceptable. An alternative remote method was developed by implantation of high concentration of piezoelectric ...
  • Modeling of the structural transition in the nanostructured tetrathiotetracene-iodide crystal 
    ANDRONIC, Silvia (Technical University of Moldova, 2015)
    The Peierls structural transition in quasi-one-dimensional (Q1D) organic crystals of tetrathiotetracene iodide (TTT2I3) is presented in the 1D and 2D physical model. For a more complete description of the crystal, two the ...
  • Radiative properties of GaSe and GaSe: Eu nanolamellar structures intercalated with Cd 
    UNTILA, D.; CARAMAN, M.; CANȚER, V.; EVTODIEV, Ig. (Technical University of Moldova, 2015)
    In this work the crystalline structure, surface morphology, photoluminescence (PL) and absorption spectra of CdSe-GaSe and CdSe-GaSe<Eu> composites are studied in the fundamental absorption band edge region. The studied ...
  • Hybrid folded phonons in twisted graphene 
    NIKA, D. L.; COCEMASOV, A. I.; BALANDIN, A. A. (Technical University of Moldova, 2015)
    We theoretically investigated phonon dispersion and specific heat in AA-stacked, AB-stacked and twisted bilayer graphene with various rotation angles. Twisting bilayer graphene leads to emergence of new phonon branches – ...

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