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Browsing Articole din publicaţii internaţionale by Subject "gallium nitride"

Browsing Articole din publicaţii internaţionale by Subject "gallium nitride"

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  • 11 - Ultra-thin membranes for sensor applications 
    TIGINYANU, I.; URSAKI, V.; POPA, V. (Woodhead Publishing, 2011)
    Technological approaches for the fabrication of ultra-thin membranes for sensor applications are reviewed, with the main focus on graphene and two-dimensional (2D) sheets of layered compounds such as BN, MoS2, Bi2Te3, ...
  • Characterization of GaN thin films and Eu-doped GaN nanowires and nanoparticles produced on the basis of Ga2O3 nanomaterial 
    RUSU, Emil; URSAKI, Veacheslav; CULEAC, Ion; SIMINEL, Anatolii; RAEVSCHI, Simion; VLAZAN, Paulina; NICORICI, Alexandr (Academia de Ştiinţe a Moldovei, 2016)
    Due to advantageous properties such as wide bandgap, pronounced chemical and thermal stability, gallium nitride is currently considered as one of the most important semiconductor materials for practical applications. We ...
  • Comparison of ion-beam-assisted molecular beam epitaxy with conventional molecular beam epitaxy of thin hexagonal gallium nitride films 
    SIENZ, S.; GERLACH, J. W.; HÖCHE, T.; SIDORENKO, A.; MAYERHÖFER, T. G.; BENNDORF, G.; RAUSCHENBACH, B. (ELSEVIER, 2004)
    Structural and electronic properties of hexagonal gallium nitride thin films on 6H–SiC, prepared by both low-energy ion-beam-assisted growth as well as molecular beam epitaxy (MBE), have been compared. According to X-ray ...
  • Directional and magnetic field enhanced emission of Cu-doped ZnO nanowires/p-GaN heterojunction light-emitting diodes 
    VIANA, Bruno; LUPAN, Oleg; PAUPORTÉ, Thierry (Society of Photo-Optical Instrumentation Engineers (SPIE), 2011)
    The electrochemical deposition technique was used for the preparation of Cu-doped ZnO-nanowire-based emitters. Nanowires of high structural and optical quality were epitaxially grown on p-GaN single crystalline film ...
  • Electrical characterization and cathodoluminescence microanalysis of AlN/GaN heterostructures 
    HUBBARD, S. M.; PAVLIDIS, D.; VALIAEV, V.; STEVENS-KALCEFF, M. A.; TIGINYANU, I. M. (ELSEVIER, 2002)
    Low-pressure MOCVD is used to grow AlN/GaN MIS-type heterostructures with AlN thickness between 3 and 35 nm. The two-dimensional electron gas (2DEG) Hall mobility was found to decrease with AlN thickness. The measured room ...
  • GaN nanostructuring for the fabrication of thin membranes and emerging applications 
    TIGINYANU, Ion; URSAKI, Veaceslav (TUBITAK, 2014)
    We present a review of technological methods developed in recent years for the purpose of gallium nitride nanostructuring, with the main focus on fabrication of thin GaN membranes. In particular, we report on traditional ...
  • The Impact of High Energy Ion Irradiation Upon CO Gas Sensitivity of Nanostructured GaN Epilayers 
    VOLCIUC, O. S.; POPA, V.; TIGINYANU, I. M.; SKURATOV, V. A.; CHO, M.; PAVLIDIS, D. (Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of Moldova, 2010)
    Photoelectrochemically nanostructured GaN epilayers were found to exhibit good sensitivity towards CO in the temperature range from 180 to 280°C. We show that subjection of nanostructured GaN samples to 166 MeV Xe+23 ion ...
  • Mesenchymal stem cells proliferation and remote manipulation upon exposure to magnetic semiconductor nanoparticles 
    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 ...
  • Self-organized and self-propelled aero-GaN with dual hydrophilic-hydrophobic behaviour 
    TIGINYANU, Ion; BRANISTE, Tudor; SMAZNA, Daria; DENG, Mao; SCHÜTT, Fabian; SCHUCHARDT, Arnim; STEVENS-KALCEFF, Marion A.; RAEVSCHI, Simion; SCHÜRMANN, Ulrich; KIENLE, Lorenz; PUGNO, Nicola M.; MISHRA, Yogendra Kumar; ADELUNG, Rainer (ELSEVIER, 2019)
    Nature utilizes hydrophilic-hydrophobic biomolecular entities to perform self-organized structural and functional tasks, including the formation of cellular compartments and motion, separation of chemicals or self-healing ...
  • Sensing up to 40atm Using Pressure-Sensitive Aero-GaN 
    DRAGOMAN, Mircea; CIOBANU, Vladimir; SHREE, Sindu; DRAGOMAN, Daniela; BRANISTE, Tudor; RAEVSCHI, Simion; DINESCU, Adrian; SARUA, Andrei; MISHRA, Yogendra K.; PUGNO, Nicola; ADELUNG, Rainer; TIGINYANU, Ion (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)
    This work reports on the fabrication and characterization of a robust pressure sensor based on aero-GaN. The ultraporous aeromaterial consists of GaN interconnected hollow micro-tetrapods with the wall thickness of about ...
  • Targeting Endothelial Cells with Multifunctional GaN/Fe Nanoparticles 
    BRANISTE, Tudor; TIGINYANU, Ion; HORVATH, Tibor; RAEVSCHI, Simion; ANDRÉE, Birgit; CEBOTARI, Serghei; BOYLE, Erin C.; HAVERICH, Axel; HILFIKER, Andres (Springer Nature Switzerland, 2017)
    In this paper, we report on the interaction of multifunctional nanoparticles with living endothelial cells. The nanoparticles were synthesized using direct growth of gallium nitride on zinc oxide nanoparticles alloyed with ...

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