Browsing Articole ştiinţifice by Title

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  • PEVTSOV, A. B.; SEL'KIN, A. V.; SYRBU, N. N.; URNANETS, A. G. (Russian Academy of Sciences, 1985)
    A well-defined doublet structure due to polariton emission has been found in the spectra of resonance exciton luminescence emitted by the black modification of ZnP, crystals at T = 2 K. The shape of the spectra is analyzed ...
  • SHIKIMAKA, O.; PYRTSAC, C.; BARBOS, Z.; SAVA, B. A.; BOROICA, L.; ELISA, M. (Institutul de Fizică Aplicată al AŞM, 2018)
    The plasticity of glasses under compressive and shear stresses is governed by 2 main mechanisms: densification and shear flow. The relative contribution of each of these mechanisms depends on the glass structure and its ...
  • SHVIRKOV, K.; KEDRYAVTSEV, A.; LAVROV, S.; SHERSTYUK, N. E.; MISHINA, E. D.; RUSU, E.; KULYUK, L. (EMW Publishing, 2012)
    The results of two-photon luminescence studies of zinc oxide (ZnO) microstructures consisting of microrods and microplanes are presented in this paper. When ZnO microstructure is excited by a femtosecond laser with a ...
  • LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; POLONSKYI, Oleksandr; DUPPEL, Viola; KAIDAS, Victor; LAZARI, Eugen; ABABII, Nicolai; FAUPEL, Franz; KIENLE, Lorenz; ADELUNG, Rainer (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2017)
    A composed morphology of iron oxide microstructures covered with very thin nanowires (NWs) with diameter of 15–50 nm has been presented. By oxidizing metallic Fe microparticles at 255 °C for 12 and 24 h, dense iron oxide ...
  • DULGHERU, Valeriu (Agentia de Stat pentru Proprietatea Intelectuala a Republicii Moldova (AGEPI), 2022)
    In the development of human civilization, technical creativity has the predominant place. Human civilization emerged with the transformation of Homo Faber into Homo Sapiens. As evidence that our ancestors were twinned with ...
  • BRAGA, D.; CHICCO, G.; GOLOVANOV, N.; PORUMB, R. (Institutul de Energetica al AŞM, 2020)
    The past decade has been characterized by considerable increase of the penetration level of solar photovoltaic systems in energy systems throughout the world. At the same time, solar irradiance has an intermittent nature. ...
  • PARA, G. I. (Institutul de Fizică Aplicată, 2012)
    The influence of anisotropic deformation on the Fermi surface topology change in quantum wires of bismuth has been studied. The Bi wires with a diameter of 50 nm were obtained by casting from the liquid phase by Ulitovskii ...
  • COTELNIC, Ala; NICULITA, Angela; TODOS, Petru; TURCAN, Romeo; BUGAIAN, Larisa; POJAR, Daniela (Ştefan cel Mare University of Suceava, Romania, 2015)
    The article presents a comparative analysis of the institutional university autonomy of the following EU member states: Denmark, Lithuania, Romania, Scotland and Sweden. Today we are witnessing the restructuring of various ...
  • HOEFLE, Matthias; COJOCARI, Oleg; SOBORNYTSKYY, Mykola; JANKOWSKI, Andrzej; OPREA, Ion; PENIRSCHKE, Andreas; JAKOBY, Rolf; DECOOPMAN, Thibaut; PERICHAUD, Marie-Genevieve; PIIRONEN, Petri (IEEE, 2015)
    Presented is an 89 GHz waveguide coupled direct detector based on low-barrier Schottky diodes. The design aims for signal-to-noise ratio (SNR) values above 35 dB within 6 dB input power dynamic, with significant white and ...
  • LUPAN, O.; POSTICA, V.; MECKLENBURG, M.; SCHULTE, K.; MISHRA, Y. K.; FIEDLER, B.; ADELUNG, R. (The Royal Society of Chemistry, 2016)
    Increasing atmospheric CO2 gas pollution and emergence of new types of green energy sources require continuous environmental monitoring. In this context, fast, efficient, light, robust, and reliable gas sensors that can ...
  • LUPAN, O.; VIANA, B.; CRETU, V.; POSTICA, V.; ADELUNG, R.; PAUPORTÉ, T. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2016)
    Transition metal doped-oxide semiconductor nanostructures are important to achieve enhanced and new properties for advanced applications. We describe the low temperature preparation of ZnO:Ag nanowire/nanorod (NW/NR) arrays ...
  • CASIAN, Anatolie; STOCKHOLM, John G.; DUSCIAC, Viorel; NICIC, Veaceslav (American Scientific Publishers, 2009)
    It is explained the strong dependence of electrical conductivity and very weak dependence of thermopower on crystal purity observed experimentally in ordinary quasi-one-dimensional organic crystals of tetrathiotetracene–iodide, ...
  • LUPAN, O.; PAUPORTE, T.; VIANA, B. (American Chemical Society, 2010)
    We report on the successful growth of homogeneous and well-covering ZnO nanowire arrays at a low temperature (90 °C) directly on a p-type Si(111) wafer by an electrochemical method. The wires were self-standing and vertically ...
  • MOCK, S.; PIETRUS, T.; SIDORENKO, A.; VOLLMER, R.; LÖHNEYSEN, H. v. (Springer Nature Switzerland, 1996)
    A detailed study of the low-temperature magnetization M and specific heat C of CePd2In is reported. For B ≈ 0, M and C show maxima at TN≈ 1.25 K indicating an antiferromagnetic phase transition as observed previously. In ...
  • PAUPORTÉ, Thierry; LUPAN, Oleg; ZHANG, Jie; TUGSUZ, Tugba; CIOFINI, Ilaria; LABAT, Frédéric; VIANA, Bruno (American Chemical Society, 2015)
    Doping ZnO nanowires (NWs) by group IB elements is an important challenge for integrating nanostructures into functional devices with better and tuned performances. The growth of Ag-doped ZnO NWs by electrodeposition at ...
  • COLIBABA, G. V.; RUSNAC, D.; FEDOROV, V.; PETRENKO, P.; MONAICO, E. V. (Elservier, 2021)
    A new technology for sintering a ZnO + Ga2O3 powder via chemical vapor transport based on HCl has been developed. The proposed sintering method has the following advantages: a low sintering temperature of 1000–1100 °C, ...
  • LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; SU, Jun; LABAT, Frédéric; CIOFINI, Ilaria; CAVERS, Heather; ADELUNG, Rainer; POLONSKYI, Oleksandr; FAUPEL, Franz; KIENLE, Lorenz; VIANA, Bruno; PAUPORTÉ, Thierry (American Chemical Society, 2019)
    In this research, the low-temperature single-step electrochemical deposition of arrayed ZnO nanowires (NWs) decorated by Au nanoparticles (NPs) with diameters ranging between 10 and 100 nm is successfully demonstrated for ...
  • LUPAN, Oleg; PAUPORTÉ, Thierry; VIANA, Bruno (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2010)
    UV LEDs : The fabrication of an ITO/ZnO-nanowires/p-GaN/In-Ga LED structure is reported with an active emitting layer made of high-quality epitaxial ZnO grown electrochemically from a solution at low temperature (85 °C). ...
  • BRAGA, Mihail (Universitatea de Stat din Moldova, 2015)
    Lucian Blaga spune că el înmulţeşte tainele, minunele acestei lumi, pentru că el iubeşte această lume, pe când alţii cu mintea lor sugrumă viaţa, o nimicesc. Oare nu este vorba cumva de ştiinţa contemporană, care despică ...
  • GEORGOBIANI, A. N.; AMINOV, U. A.; DRAVIN, V. A.; LEPNEV, L. S.; MULLABAEV, I. D.; URSAKI, V. V.; ILJUKHINA, Z. P. (ELSEVIER, 1999)
    The investigation of traps and recombination centres in structures based on ZnSe single crystals by means of the deep level transient spectroscopy, photoluminescence and electroluminescence methods are presented. The ...

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