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  • X-ray diffraction study on pressure-induced phase transformations and the equation of state of ZnGa2Te4 
    ERRANDONEA, D.; KUMAR, R. S.; GOMIS, O.; MANJÓN, F. J.; URSAKI, V. V.; TIGINYANU, I. M. (AIP Publishing LLC, 2013)
    We report on high-pressure x-ray diffraction measurements up to 19.8 GPa in zinc digallium telluride (ZnGa2Te4) at room temperature. An irreversible structural phase transition takes place at pressures above 12.1 GPa and ...
  • X-ray induced luminescence in ZnIn2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (Institutul de Fizică Aplicată, AŞM, 2006)
    Compounds belonging to the system ZnxIn2S3 + x are of special interest due to their peculiar properties. Intensive luminescence and high photosensitivity in visible and ultraviolet range determine their potential applicability ...
  • X-Ray Luminescence in ZnIn2S4, CdGa2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (IEEE, 2007)
    Results related to investigation of X-ray induced luminescence spectra in ZnIn 2 S 4 , CdGa 2 S 4 and Zn 3 In 2 S 6 single crystals measured at 300 and 80 K are presented. The spectra mainly consist of one band with maximum ...
  • The yeast on the grape berry surface influenced by climatic factors 
    YAO, Meiling; WANG, Fei; BREAHNA, Elizaveta; ARPENTIN, Gheorghe (EDP Sciences, 2021)
    Republic Moldova is a country with long history of winemaking. Understanding the microorganism on the grape surface is very important to the winemaking process, and it's also a national strategy of development of the wine ...
  • 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 ...
  • Yet Another Method for Image Segmentation based on Histograms and Heuristics 
    TEODORESCU, Horia-Nicolai; RUSU, Mariana (Institutul de Matematică şi Informatică al AŞM, 2012)
    We introduce a method for image segmentation that requires little computations, yet providing comparable results to other methods. While the proposed method resembles to the known ones based on histograms, it is still ...
  • Zinc Oxide Nanostructures – Current Status 
    LUPAN, O.; SONTEA, V.; CRETU, V.; RAILEAN, S.; TROFIM, V. (Kyiv Polytechnic Institute, 2012)
    Development of ZnO nanostructures is of great importance for industrial applications. We analyze synthesis and properties control of zinc oxide, which are important in understanding the growth mechanism and further developing ...
  • Zinc oxide nanotetrapods with four different arm morphologies for versatile nanosensors 
    PAULOWICZ, Ingo; POSTICA, Vasile; LUPAN, Oleg; WOLFF, Niklas; SHREE, Sindu; COJOCARU, Ala; DENG, Mao; MISHRA, Yogendra Kumar; TIGINYANU, Ion; KIENLE, Lorenz; ADELUNG, Rainer (ELSEVIER, 2018)
    The structural morphology of metal oxide nano- and microstructures plays a crucial role in the performances of sensors and especially of nanosensors. Here, a simple approach on the synthesis of three-dimensional (3D) highly ...
  • Zn/sup +/, Zn/sup +//P/sup +/ and Zn/sup +//As/sup +/ implanted InP: study of electrical and symmetry properties 
    TIGINYANU, I. M.; KRAVETSKY, I. V.; URSAKI, V. V.; MAROWSKY, G.; HARTNAGEL, H. L. (IEEE, 1997)
    InP is known to be characterized by a low activation efficiency of p-type dopants. Some attempts have been previously undertaken to use the coimplantation of P/sup +/ ions in order to improve the activation efficiency of ...
  • Zn/sup +//P/sup +/ and Zn/sup +//As/sup +/ co-implantation in InP single crystals 
    URSAKI, V. V.; TIGINYANU, I. M.; ICHIZLI, V. M.; TERLETSKY, A. I.; PYSHNAYA, N. B.; RADAUTSAN, S. I. (IEEE, 1996)
    The activation efficiency of zinc impurity co-implanted with P/sup +/ and As/sup +/ ions in InP was studied by Hall-effect measurements. Both P/sup +/ and As/sup +/ co-implantations followed by post-implantation annealing ...
  • ZnAl2O4-Functionalized Zinc Oxide Microstructures for Highly Selective Hydrogen Gas Sensing Applications 
    HOPPE, Mathias; LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; DUPPEL, Viola; KIENLE, Lorenz; TIGINYANU, Ion; ADELUNG, Rainer (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
    In this work, a simple method of ZnAl2O4-functionalization of ZnO microstructures is presented. The different characterization methods (structural, chemical, and micro-Raman) demonstrated the presence of only ZnO and ZnAl2O4 ...
  • ZnO Hydrogen Nanoscale Sensors 
    LUPAN, Oleg; CHOW, Lee (Springer International Publishing Switzerland, 2013)
    Hydrogen has the potential to play an important role in energy and automobile industries in our society. Being an explosive gas, hydrogen is also a colorless and odorless gas; therefore, there is a great need to develop ...
  • ZnO hydrothermal crystal growth 
    BUCUR, Rau Alin; BUCUR, Alexandra; GROZESCU, Ioan; RUSU, Emil (Institutul de Fizică Aplicată, 2012)
    Growth of large high-quality ZnO crystals is important not only for basic studies but also for applications. Hydrothermal and flux methods are regarded as inferior to the vapor growth method due to the possibility of ...
  • ZnO lasing in complex systems with tetrapods 
    MARKUSHEV, V. M.; URSAKI, V. V.; RYZHKOV, M. V.; BRISKINA, C. M.; TIGINYANU, I. M.; RUSU, E. V.; ZAKHIDOV, A. A. (Springer Nature Switzerland, 2008)
    ZnO structure in the form of a core–shell wire was grown with a modified vapour transport and condensation method. The wire consists of a dense core which may play the role of a waveguide and a shell formed mainly from ...
  • ZnO Micro/Nano Structures by MOCVD and Vapour Transport Technique: Growth and Characterization 
    RUSU, E.; BURLACU, A.; URSAKI, V.; STRATAN, G.; PURICA, M.; BUDIANU, E.; MONAICO, E. (IEEE, 2007)
    ZnO micro/nano structures were grown by metalo-organic chemical vapour deposition (MOCVD) and chemical vapour transport and condensation deposition process on Si and glass substrates. Using MOCVD method were grown uniform ...
  • ZnO Nanowire emitters for tunable near-UV-Blue Light emitting diodes 
    VIANA, B.; LUPAN, O.; PAUPORTÉ, T. (Vinča Institute of Nuclear Sciences Belgrade, Serbia, 2011)
    We have shown that the emission wavelength could be tuned and shift toward the violet-blue region by up to 40 nm by doping with Cu or Cd . Our results clearly state the remarkable quality of the pure and doped-ZnO ...
  • ZnO nanowire-based light-emitting diodes with tunable emission from near-UV to blue 
    PAUPORTÉ, Thierry; LUPAN, Oleg; VIANA, Bruno; LE BAHERS, T. (Society of Photo-Optical Instrumentation Engineers (SPIE), 2013)
    Nanowires (NWs)-based light emitting diodes (LEDs) have drawn large interest due to many advantages compared to thin film based devices. We have successfully prepared epitaxial n-ZnO(NW)/p-GaN heterojunctions using low ...
  • ZnO nanowires for tunable near-UV/blue LED 
    PAUPORTÉ, Thierry; LUPAN, Oleg; VIANA, Bruno (Society of Photo-Optical Instrumentation Engineers (SPIE), 2012)
    Nanowires (NWs)-based light emitting diodes (LEDs) have drawn large interest due to many advantages compared to thin film based devices. Markedly improved performances are expected from nanostructured active layers for ...
  • ZnO nanowires grown by chemical deposition and rapid photothermal processing 
    SHISHIYANU, T.; LUPAN, O.; CHOW, L.; SHISHIYANU, S.; RAILEAN, S. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2008)
    Chemical deposition aqueous method has been developed to synthesize a new generation of smart and functional nanostructured zinc oxide thin films. This chemical process uses stable and inexpensive metal inorganic salts and ...
  • ZnO single crystal and epitaxial thin film studied by second harmonic generation and photoluminescence 
    BUINITSKAYA, G.; KULYUK, L.; MIROVITSKII, V.; RUSU, E.; MISHINA, E.; SHERSTYUK, N. (Elservier, 2006)
    Zinc oxide thin nanostructured film and single crystal were studied by photoluminescence (PL) and optical second harmonic generation (SHG). The single crystal reveals a strong blue excitonic luminescence, while for thin ...

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