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Browsing Articole din publicaţii internaţionale by Author "TEZLEVAN, V. E."

Browsing Articole din publicaţii internaţionale by Author "TEZLEVAN, V. E."

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  • Lattice vibrations in CuInSe2 crystals 
    SYRBU, N. N.; BOGDANASH, M.; TEZLEVAN, V. E. (Springer Nature Switzerland, 1997)
    Infrared reflection spectra of CuInSe2 crystals are investigated for the polarizations E∥c and E⊥c. Contours of the reflection spectra are calculated and phonon parameters and dielectric constants are determined. The ...
  • Luminescence and Photoconductivity Caused by Antisite Defects in CdIn2S4 Single Crystals 
    GEORGOBIANI, A. N.; GRUZINTSEV, A. N.; RATSEEV, S. A.; TEZLEVAN, V. E.; TIGINYANU, I. M.; URSAKI, V. V. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 1986)
    Results of a study of the influence of nonstoichiometry as well as of annealing and argon ion implantation on photoluminescence and photoconductivity spectra of cadmium thioindate single crystals are presented. The energy ...
  • Multiple-phonon resonant Raman scattering in CuGaxIn1−xS2 single crystals 
    SYRBU, N. N.; NEMERENCO, L. L.; DOROGAN, A. V.; TEZLEVAN, V. E.; ARAMA, E. (Elservier, 2009)
    In this work it is researched the Raman scattering spectra of CuGaхIn1−xS2 solid compounds for x=1.0,0.9 and 0.8 at 10–60K. LO-phonons, 2LO-phonons etc can be observed while going far from the excitation energy (6 phonons ...
  • Optical and photoelectrical properties and band structure of single crystals of solid solutions of the system (CdS)3x–(In2S3)1−x 
    RADAUTSAN, S. I.; SYRBU, N. N.; TEZLEVAN, V. E.; SHERBAN, K. F.; STRUMBAN, E. E. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1973)
    The spectra of edge absorption, photoconductivity, and reflectivity of single crystals of solid solutions on the basis of CdIn2S4 have been studied. The values of Eg, the character of transitions responsible for Eg, the ...
  • Optical and photoelectrical properties of CdIn2S4 
    RADAUTSAN, S. I.; MOLODYAN, I. P.; SYRBU, N. N.; TEZLEVAN, V. E.; SHIPITKA, M. A. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1972)
    The present paper contains results of a study of the edge absorption at 293 and 77 0K, the spectral distribution of the photoconductivity, and the reflectivity spectra in the fundamental absorption region. An interpretation ...
  • Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2 
    LEVCENKO, S.; SYRBU, N. N.; TEZLEVAN, V. E.; ARUSHANOV, E.; DOKA-YAMIGNO, S.; SCHEDEL-NIEDRIG, Th.; LUX-STEINER, M. Ch. (IOP Publishing, 2007)
    The reflection spectroscopy of chalcopyrite CuGaS2 and CuInS2 single crystals has been applied for light polarized perpendicular () and parallel () to the optical axis in the photon energy range between 1.5 and 6 eV at 77 ...
  • Photoelectrical properties of a Au-CdIn2S4 surface-barrier diode 
    RADAUTSAN, S. I.; MOLODYAN, I. P.; BULYARSKII, S. V.; SYRBU, N. N.; TEZLEVAN, V. E. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1974)
    The photoelectrical properties of Schottky barriers Au-CdIn2S4 in a broad energy region have been considered. The optical direct and indirect transitions and the spin-orbit splittings of zones Γ15(Γ7), Γ15(Γ8) in L1(L6) ...
  • Polariton emission from CuGaSe2 crystals 
    SYRBU, N. N.; TIGINYANU, I. M.; URSAKI, V. V.; TEZLEVAN, V. E.; ZALAMAI, V. V.; NEMERENCO, L. L. (ELSEVIER, 2005)
    The value of longitudinal–transverse splitting ωLT equal to 2.5–2.8meV and the translation mass M=2.5m0 were determined for the A exciton as a result of investigation of the reflectivity and luminescence spectra of CuGaSe2 ...
  • Raman scattering study of pressure-induced phase transitions in AIIB2IIIC4VI defect chalcopyrites and spinels 
    TIGINYANU, I. M.; URSAKI, V. V.; MANJÓN, F. J.; TEZLEVAN, V. E. (ELSEVIER, 2003)
    AIIB2IIIC4VI defect chalcopyrites (DC) and spinels were investigated by Raman scattering spectroscopy under hydrostatic pressure up to 20 GPa. All these compounds were found to undergo a phase transition to a Raman inactive ...
  • Raman scattering study of pressure-induced phase transitions in MIn2S4 spinels 
    URSAKI, V. V.; MANJÓN, F. J.; TIGINYANU, I. M.; TEZLEVAN, V. E. (IOP Publishing, 2002)
    MIn2S4 (M = Mn, Cd, Mg spinels were investigated by Raman scattering spectroscopy under hydrostatic pressure up to 20 GPa. These compounds were found to undergo a reversible phase transition to a Raman-inactive defect ...
  • Resonance impurity radiation in CuGaS2 crystals 
    SYRBU, N. N.; NEMERENCO, L. L.; TEZLEVAN, V. E. (Elservier, 2007)
    In this work the reflectivity spectra of the CuGaS2 crystals have been investigated in the EIIc polarization and the absorption spectra were studied in the E⊥c polarization at the 10K. The parameters of the excitons and ...
  • Resonance Raman scattering by excitonic polaritons in CuGaS2 
    SYRBU, N. N.; BLAZHE, M.; TIGINYANU, I. M.; TEZLEVAN, V. E. (Springer Nature Switzerland, 2002)
    Resonance Raman scattering by exciton polaritons in crystals of CuGaS2 under excitation with the 4880 and 4765 Å lines of an Ar+ laser at 9 K is studied. Lines of one-and two-phonon scattering of excitonic polaritons are ...
  • Spatial dispersion in polariton spectra of CuGaS2 crystals 
    SYRBU, N. N.; BLAJE, M.; TEZLEVAN, V. E.; URSAKI, V. V. (Springer Nature Switzerland, 2002)
    TIn this study, we obtained new data on the parameters of the long-wavelength exciton polaritons of the A series and studied the wavelength-modulated reflectivity spectra of the A, B, and C excitons, the luminescence ...
  • Vibrational modes of CuAl/sub 1-x/Ga/sub x/Se/sub 2/ solid solution 
    SYRBU, N. N.; BOGDANASH, M.; TEZLEVAN, V. E. (IEEE, 1996)
    In the present paper new results of Raman scattering of CuAl/sub 1-x/Ga/sub x/Se/sub 2/ crystals by the unpolarized light at 77 K are presented. IR reflectivity spectra of this solid solution have been investigated for ...

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