Articole ştiinţifice: Recent submissions

  • Luminescence properties of poly- (phenylene vinylene) derivatives 
    CUONG, Ton-That; GEOFF, Stockton; PHILLIPS, Matthew R.; NGUYEN, Thien-Phap; HUANG, Chun Hao; COJOCARU, Ala (John Wiley & Sons, Inc., 2008)
    Three PPV derivatives, BEHPPV, MEHPPV and MEHSPPV, were synthesised and characterised by photoluminescence (PL) and cathodoluminescence (CL) spectroscopies in the temperature range 10–300 K. PL and CL spectra of the polymers ...
  • Improved Long-Term Stability and Reduced Humidity Effect in Gas Sensing: SiO2 Ultra-Thin Layered ZnO Columnar Films 
    POSTICA, Vasile; LUPAN, Oleg; GAPEEVA, Anna; HANSEN, Luka; KHALEDIALIDUSTI, Rasoul; MISHRA, Abhishek Kumar; DREWES, Jonas; KERSTEN, Holger; FAUPEL, Franz; ADELUNG, Rainer; HANSEN, Sandra (John Wiley & Sons, Inc., 2021)
    The undoped and metal-doped zinc oxide columnar films (ZnO:Sn, ZnO:Fe, ZnO:Ag, and ZnO:Cu) are covered with an ultra-thin layer of SiO2 (10–20 nm). The electrical, UV, and volatile organic compounds (VOCs) sensing properties ...
  • Raman Modes in Porous GaP under Hydrostatic Pressure 
    TIGINYANU, I. M.; URSAKI, V. V.; RAPTIS, Y. S.; STERGIOU, V.; ANASTASSAKIS, E.; HARTNAGEL, H. L.; VOGT, A.; PRÉVOT, B.; SCHWAB, C. (John Wiley & Sons, Inc., 1999)
    Bulk and free-standing porous membranes of GaP have been characterised by Raman spectroscopy under hydrostatic pressure, with emphasis to the Fröhlich surface vibration mode. Under compression, an increase in the frequency ...
  • Unforseen factors influencing Fe(III)-containing cations sorption on strongly basic anion exchangers 
    GUTSANU, Vasile; SCHITCO, Cristina; DRUTSA, Raisa (John Wiley & Sons, Inc., 2008)
    The sorption and partial destruction of the Fe(III)-containing compounds in the aqueous medium in strongly basic anion exchangers AV-17 and Varion-AD phase have been investigated. It is shown that partial destruction of ...
  • Color cathodoluminescence study of oxides subjected to thermal environments 
    NAZAROVA, T. A.; SAPARIN, G. V.; OBYDEN, S. K.; IVANNIKOV, P. I. (John Wiley & Sons, Inc., 1997)
    The behavior of cathodoluminescence (CL) from oxides associated with plastic deformation as well as with annealing at different temperatures and atmospheres has been examined. Observations using the real color CL (CCL) ...
  • Cathodoluminescence and computer graphics in materials science 
    NAZAROV, M. V.; NAZAROVA, T. A. (John Wiley & Sons, Inc., 1994)
    The combination of cathodoluminescence (CL) in scanning electron microscopy (SEM) with computer graphics is proposed for studying semiconductors and dielectric materials. Spatial distribution of several types of defects ...
  • Thickness Dependences of Kinetic Properties of Quantum Wires of Pure and Doped Bismuth 
    BODIUL, P. P.; BURCHAKOV, A. N.; GITSU, D. V .; NIKOLAEVA, A. A. (Springer Nature Switzerland, 1999)
    Last time a great number of researches is devoted to the investigation of quantum and classical size effects [1]. The problem is stimulated by the possibility to detect new effects having no analogues in bulk crystal and ...
  • Thermoelectric Properties of Films and Monocrystalline Whiskers of Tellurium 
    BODIUL, P.; BONDARCHUK, N.; HUBER, T.; KONOPKO, L.; NIKOLAEVA, A.; BOTNARI, O. (IEEE, 2006)
    We report a study of the thermoelectric properties of Te films obtained by vacuum-condensation method on glass, polyamide, mica at various temperatures of condensation. The crystallographic structure of the films is ...
  • Thermoelectric properties of BI1-XSBX (0≤ Х ≤ 0.12) wires depending on diameter, composition and temperature 
    BODIUL, P. P.; MOLOSHNIK, E. F.; POPOV, I. A.; BOTNAR, О. V.; ISTRATE, E. K. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2010)
    Behaviour of kinetic coefficients versus temperature (4.2 - 300 K), composition and diameter (d) was studied on the samples of thin single-crystal bismuth and Bi1-xSbx wires obtained by the Ulitovsky method. Antimony content ...
  • Thermo- and magneto-thermo-E.M.F. in Bi-Sn alloys 
    BODIUL, P. P.; FEDORKO, A. S.; GITSU, D. V. (John Wiley & Sons, Inc., 1970)
    Sn in Bi behaves as an acceptor and influences the anisotropy of kinetic effects sensitive to the band structure near Fermi-level, such as the thermo- and magneto-thermo-e.m.f. described in present paper.
  • The thermopower in bismuth whiskers 
    BODÍUL, P. P.; GITSU, D. V.; DOLMA, V. A.; MIGLEI, M. F.; ZEGRYA, G. G. (John Wiley & Sons, Inc., 1979)
    The temperature dependence of the thermopower in Bi whiskers of different thickness (0.3 to 6 μm) is measured within the temperature range 77 to 300 K. At low temperatures the thermopower in the thinnest whiskers changes ...
  • The structure phase transition in quantum wires of bismuth under elastic tension 
    BODIUL, P. P.; GARABAZHIU, V. F.; CONDREA, E. P.; NIKOLAEVA, A. A. (Springer Nature Switzerland, 1996)
    It was established that at 4.2 K for thin (d<1μm)Bi wires there existed a complicated λ-form dependence of the resistanceR¯ on the strong elastic deformation ξ. The drastic fall in the oscillation amplitude of the ...
  • The Structure of Isoenergetic Surfaces of Bi at the L-Maximum 
    BODIUL, P. P.; GITSU, D. V.; FEDORKO, A. S. (John Wiley & Sons, Inc., 1969)
    Magneto-thermoelectric properties of the semimetal Bi provide information not only about the scattering of carriers, but also about the number and relative localization of band extrema in k-space. Conclusion about the ...
  • The Impurity States in Bismuth 
    BODIUL, P. P.; GARABAZHIU, V. F.; GITSU, D. V. (John Wiley & Sons, Inc., 1987)
    The influence of a lattice deformation and the degree of valency states filling of the impurity atom on the impurity subsystem behaviour is investigated. The states are found in which the electron is localized in the region ...
  • The impact of dimensions, magnetic field, elastic deformation on the thermoelectric figure of merit of the topological insulator wires based on semiconductor Bi1-xSbx wires 
    NIKOLAEVA, А.; KONOPKO, L.; HUBER, Т.; BODIUL, P.; POPOV, I.; MOLOSHNIK, Е.; GERGISHAN, I. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2016)
    This paper presents the experimental results of a study of thermoelectric properties of the topological insulator (TI) wires based on semiconductor Bi1-xSbx wires. Glass-coated semiconductor Bi-17 at % Sb wires prepared ...
  • Temperature and magnetic dependence of the resistance and thermopower in the topological insulator Bi1−xSbx nanowires 
    NIKOLAEVA, Albina; KONOPKO, Leonid; HUBER, Tito; POPOV, Ivan; BODIUL, Pavel; MOLOSHNIK, Evghenii (John Wiley & Sons, Inc., 2014)
    Such alloys are classified as topological insulators. The individual Bi–17 at Sb wires in a glass capillary with diameters ranging from 100 to 1000 nm were prepared by high-frequency liquid-phase casting in an argon ...
  • Structural instability of an impurity subsystem induced by monocrystal deformation 
    BODIUL, P. P.; GARABAZHIU, V. F.; KONDRYA, E. P.; NIKOLAYEVA, A. A. (Elsevier, 1992)
    Oscillating resistivity dependence of tensile extension was observed in thin (d < 20 Ојm) cylindrical single crystals of Bi-0.03 at% Sn alloy at 4.2 K. The resistivity dependence was influenced by sample diameter, temperature ...
  • Specific Role of Impurities in Semimetals 
    BOTOSHAN, N. I.; BODIUL, P. P.; GITSU, D. V. (Springer Nature Switzerland, 1997)
    We have shown that the Fermi energy dependence on temperature in semimetals keeps its well-known form, similar to that of semiconductors, down to T = 0. In the nearest vicinity of T = 0 this dependence is significantly ...
  • Size-Quantization Semimetal–Semiconductor Transitionin Bi0.98Sb0.02 Nanowires: Thermoelectric Properties 
    NIKOLAEVA, A. A.; KONOPKO, L. A.; HUBER, T. E.; BODIUL, P. P.; POPOV, I. A.; MOLOSHNIK, E. F. (Springer Nature Switzerland, 2012)
    We fabricated Bi0.98Sb0.02 wires with diameters in the range between 200 nm and 2 μm and studied their electronic transport and thermoelectric properties. Rotational diagrams and strong Shubnikov–de Haas oscillations show ...
  • Semimetal-Semiconductor Transitions in Semimetal Bismuth-Antimony Nanowires Induced by Size Quantization, Strain, and Magnetic Field 
    NIKOLAEVA, Albina A.; KONOPKO, Leonid A.; HUBER, Tito E.; BODIUL, Pavel P.; POPOV, Ivan A.; MOLOSHNIK, Eugen F. (Springer Nature Switzerland, 2011)
    In this work, we study glass-coated single-crystal Bi98Sb02 wires obtained by liquid phase casting. Semimetal Bi98Sb02 nanowires exhibited a “semiconductor” behavior of the temperature dependence R(T) for wire diameters ...

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