Articole ştiinţifice: Recent submissions

  • Optical properties and energetic band structure of Tl3AsS3, Tl3AsSe3 and Tl3SbS3 crystals 
    SYRBU, N. N.; KRASOVSKY, V. T.; GITSU, D. V.; GRINCHESCHEN, I. N. (Elservier, 1995)
    Fundamental absorption edge spectra and reflectivity spectra of TlaAsS3, T13AsSe3 and TlaSbS 3 crystals have been investigated in the range 1-6 eV at 300 and 77 K. Polarization dependences of three excitonic series ground ...
  • Optical Phonons and Chemical Bonding in TlSbS2, TlSbSe2, and Tl3SbS3 Crystals 
    STAMOV, I. G.; SYRBU, N. N.; ZALAMAI, V. V. (Elservier, 2014)
    The emission lines of bound and free excitons and their phonon replicas were observed in the luminescence spectra of ZnP2-D48 crystals doped with Mn, Sn, Cd and Sb measured at 10K. The emission lines are described by the ...
  • Optical Phonons and Chemical Bonding in TlSbS2, TlSbSe2, and Tl3SbS3 Crystals 
    SYRBU, N. N.; KRASOVSKY, V. T.; GRINCHESHEN, I. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1993)
    The optical phonons at k = 0 of TlSbS2, TlSbSe2, and Tl3SbS3 have been investigated by infrared reflectivity measurements from 50 to 4000 cm−1 at 300 K. The factor group analysis of vibrational modes of TlSbS2 and Tl3SbS3 ...
  • Optical Modulation Spectra of CdP2 Crystals and Ni-CdP2 Schottky Barriers 
    RADAUTSAN, S. I.; SYRBU, N. N.; KIOSEV, V. K. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1974)
    The relative photosensitivity spectra of Ni-CdP2 Schottky barriers have been investigated experimentally; in these spectra a structure consisting of nine maxima has been observed in the intrinsic absorption region. The ...
  • Оптическая анизотропия линий экситонных серий в дифосфиде цинка 
    СЫРБУ, Н. Н.; ХАЧАТУРОВА, С. Б.; РАДАУЦАН, С. И. (Russian Academy of Sciences, 1986)
    В данной работе рассматривается зависимость экситонных спектров отражения и поглощения от ориентации волнового вектора К относительно кристаллографических осей дифосфида цинка.
  • Оптическая анизотропия линий обратной водородоподобной серии в дифосфиде цинка 
    СЫРБУ, Н. Н.; ХАЧАТУРОВА, С. Б.; РАДАУЦАН, С. И. (Russian Academy of Sciences, 1986)
    В данной работе рассматривается влияние поляризации и направления распространения падающей световой волны на оптические спектры обратной водородоподобной серии (ОВС) линий поглощения и отражения. Измерения проведены на ...
  • 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 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 activity induced by rare-earth ions in As2S3 glasses and KCl crystals 
    SYRBU, N.; ZALAMAI, V.; CULEAC, I.; IOVU, M.; TIRON, A. V.; BERIL, S. I.; STAMOV, I. G. (Elservier, 2019)
    Optical transmission spectra of As2S3 glass-like plates and nanolayers, undoped and doped with Sm and Pr ions have been investigated. The spectral dependences of the refractive index and glass transmission spectra, registered ...
  • Oblique Phonons in Raman Scattering and IR Reflection of TeO2 Crystal 
    SYRBU, N. N.; CRETU, R. V.; CEBOTARI, V. Z.; MUSHINSKII, V. P. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1996)
    The Raman scattering and IR reflectivity have been investigated for different crystal configurations. The contours of reflectivity spectra have been calculated. The angle dependence of polar vibrational modes in both ...
  • 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 ...
  • Luminescence at the axial centers of CdP2-D48 crystals 
    BERIL, S. I.; PANASENCO, V. V.; TKACHENKO, D. V.; STAMOV, I. G.; SYRBU, N. N. (Elservier, 2018)
    Emission lines of free excitons and excitons bound to axial centers have been observed in the luminescence spectra of CdP2-D48 crystals doped with Mn, Sn, and Sb at 10 K. Bands models of excitons bound to axial centers ...
  • lntraband and interband relaxation of excitonic polaritons 
    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 ...
  • 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 ...
  • Lattice vibrations in CuIn1−xGaxSe2 crystals 
    SYRBU, N. N.; BOGDANASH, M.; TEZLEVAN, V. E.; MUSHCUTARIU, I. (Elservier, 1997)
    Infrared reflectivity spectra of CuInSe2, CuGaSe2 and CuIn1−xGaxSe2 solid solutions have been investigated for the polarizations E|c and E⊥c. Reflectivity spectrum contours are calculated and phonon parameters and dielectric ...
  • Обратная водородоподобная серия в примесных полупроводниках 
    СИНЯВСКИЙ, Э. П.; СЫРБУ, Н. Н.; ЧЕБОТАРЬ, В. Н. (Ioffe Institute, 1986)
    Изучено влияние примесных центров различных зарядовых состояний на механизмы образования обратных водородоподобных серий (ОВС) в полупроводниках. Теоретически и экспериментально исследовано поглощение света в области О ВС ...
  • Interference of resonance luminescence of exciton polaritons in CuGaS2 crystals 
    SYRBU, N. N.; NEMERENCO, L. L.; STAMOV, I. G.; BEJAN, V. N.; TEZLEVAN, V. E. (Elservier, 2007)
    The nonmodulated and wavelength-modulated reflection spectra of CuGaS2 crystals for the polarization EIIc of 10K are studied. The states n=1, 2 and 3 of the excitons Γ4 (A-excitons) and n=1, n=2 of B- and C-excitons are ...
  • Interference of birefractive waves in CdGa2S4 crystals 
    SYRBU, N. N.; TIRON, A. V.; PARVAN, V. I.; ZALAMAI, V. V.; TIGINYANU, I. M. (Elservier, 2015)
    In СdGа2S4 crystals the Fabry–Perot and birefringence interference spectra were investigated. Spectral dependences of refraction indexes for ordinary (no) and extraordinary (ne) light waves are defined. The spectral ...
  • Infrared vibrational Modes in Tl3SbS3, Tl3AsS3, and Tl3AsSe3 crystals 
    SYRBU, N. N.; KRASOVSKY, V. T.; GRINCHESHEN, I. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1994)
    Reflectivity spectra of Tl3SbS3, Tl3AsS3, and Tl3AsSe3 crystals have been investigated in the wave number range 50–600 cm−1 for the polarizations E∥c and E c. The fundamental phonon parameters, the limiting dielectric ...
  • Infrared Vibrational Modes and Anisotropy of the Effective Ionic Charge in CuAlSe2, CuAlS2, and CuGaSe2 Crystals 
    ANDRIESH, A. M.; SYRBU, N. N.; IOVU, M. S.; TAZLAVAN, V. E. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1995)
    Reflectivity spectra of CuAlS2, CuAlSe2, and CuGaSe2 crystals have been investigated in the wave number range 50 to 600 cm−1 for the polarizations E ‖ c and E ⊥ c. The fundamental phonon parameters, the limiting dielectric ...

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