IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii naţionale by Subject "semiconductors"

Browsing Articole din publicaţii naţionale by Subject "semiconductors"

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  • A comparative study of photoconductivity decay in granular and nanowire ZnO 
    POSTOLACHE, Vitalie (Academy of Sciences of Moldova, 2016)
    A comparative analysis of transient photoconductivity in microgranular ZnO and ZnO nanowires prepared by oxidizing bulk ZnTe and ZnTe nanowires, respectively, is performed in this paper. The measurements are carried out ...
  • Conductibility and irradiation stability of single crystals ZnIn2S4 
    PINTEA, V.; ARAMA, E.; GHEORGHITSA, E.; MACIUGA, A.; ZHITAR, V. (Academy of Sciences of Moldova, 2014)
    This study presents the results of investigations on the conductivity and irradiation stability of single crystals ZnIn2S4 in a wide range of incident electron energies (3075 keV) and respective doses (10141020 cm2). The ...
  • Defectoscopia catodoluminescentă a semiconductorilor II-VI 
    NAZAROV, Mihail (Agenţia de Stat pentru Proprietatea Intelectuală a Republicii Moldova, 2002)
    În ultimii ani au fost publicate rezultate noi privind utilizarea Bi ca dopant în Si şi GaAs. Noi de asemenea am utilizat Bi în cristalele gazdă de ZnS şi ZnSe, cu toate că raza atomică a Bi este mai mare ca raza Zn şi S. ...
  • Exciton spectra and energy band structure of CuAlSe2 crystals 
    SYRBU, N. N.; DOROGAN, A. V.; MASNIK, A.; URSAKI, V. V. (Academy of Sciences of Moldova, 2011)
    The main exciton parameters and the refined values of the energy intervals V1(Г7) - C1(Г6), V2(Г6) - C1(Г6) and V3(Г7) - C1(Г6) in CuAlSe2 crystals are discussed. The crystal field and spin-orbit splitting of the balance ...
  • Free and bound exciton luminescence of ZnP2 –D48 
    SYRBU, N. N.; STAMOV, I. G.; DOROGAN, A. V.; NEMERENCO, L. L. (Academy of Sciences of Moldova, 2007)
    Thin structure of polarized absorption spectra of indirect transitions with phonon emission in the ZnP2 crystals is investigated. In the luminescence spectra, radiation of phonons at annihilation of free excitons ...
  • Gas sensing characterization of tellurium thin films by the Kelvin probe technique 
    TSIULYANU, D.; MARIAN, S.; MOCREAC, O. (Academy of Sciences of Moldova, 2012)
    The sensing behavior of tellurium films at room temperature was tested with environmental pollutant gases, such as NO2, CO, O3, and water vapor, using the Kelvin probe technique. A significant sensitivity was observed for ...
  • Integration of Ge Nanowire Arrays in Glass Micro-Fibers 
    IOIŞER, Anatolii; BADINTER, Efim; MONAICO, Elena; POSTOLACHE, Vitalie; HARTNAGEL, Hans Ludwig; LEPORDA, Nicolae; TIGINYANU, Ion (Academia de Ştiinţe a Moldovei, 2011)
    We report on a technological route for the integration of large arrays of Ge nanowires (NWs) in a human-hair-like glass micro-fiber, the length of the micro-fiber reaching one meter. The route comprises (a) the formation ...
  • Interband optical transitions in the region of exciton resonances in In0.3Ga0.7As/GaAs quantum wells 
    SYRBU, N.; DOROGAN, A.; DOROGAN, V.; VIERU, T.; URSAKI, V.; ZALAMAI, V. (Academy of Sciences of Moldova, 2012)
    Reflectance spectra of quantum wells (QWs) with 8-nm-thick In0.3Ga0.7As layers with a 9-nm-thick GaAs barrier layer up and a 100-nm-thick barrier layer down were investigated in the spectral range of 0.5–1.6 eV in S- and ...
  • Luminescence of porous semiconductor media covered with metallic films 
    POSTOLACHE, Vitalie (Academy of Sciences of Moldova, 2016)
    Porous GaP and InP layers with a pore diameter and a skeleton wall thickness of about 50 nm are prepared on bulk substrates by anodization; microgranular ZnO structures are produced by thermal treatment of ZnTe single ...
  • Morphological and X-ray diffraction analysis of CH3NH3PbI3 perovskite semiconductor 
    PLESCO, I.; GHIMPU, L.; CIOBANU, V.; VOLODINA, G.; TIGHINEANU, I. (Universitatea de Stat „Alecu Russo“ din Bălţi, 2014)
    CH3NH3PbI3 perovskite semiconductor is considered very promising for use in photovoltaics. Large family of perovskites includes insulating, antiferromagnetic, piezoelectric, thermoelectric, superconductive, conductive and ...
  • Porous morphologies in Si, III-V and II-VI compounds: a comparative study 
    LANGA, S.; MONAICO, E.; FÖLL, H.; TIGINYANU, I. M. (Technical University of Moldova, 2009)
    Porous morphologies obtained during the anodization of semiconductors are mainly determined by particular characteristics of the semiconductor-electrolyte interfaces and the bulk properties of the semiconductor itself. ...
  • Superposition of free and bound exciton emission spectra in ZnP2-D48 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; IVANENCO, Yu. (Academy of Sciences of Moldova, 2011)
    Bound exciton lines are found in the luminescence spectra of Mn, Sn, Cd, and Sb doped tetragonal zinc diphosphide crystals at the temperature of 10 K. Zero phonon lines of bound and free exciton emission, as well as their ...

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