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  • Exciton-phonon spectra in CuIn/sub 1-x/Ga/sub x/S/sub 2/ crystals 
    RADAUTSAN, S. I.; SYRBU, N. N.; CRETU, R. V.; TEZLEVAN, V. E. (IEEE, 1997)
    In this work, the wavelength derivative reflection (WDR) spectra of CuIn/sub 1-x/Ga/sub x/S/sub 2/ crystals have been investigated in the region of A, B and C series. The n=1, n=2 and n=3 states are determined and contours ...
  • Excitoni magnetici bidimensionali 
    MOSKALENKO, Sveatoslav; ZUBAC, Ion (Universitatea Tehnică a Moldovei, 2021)
    Interacțiunea Coulombiană electron-electron a fost dedusă luându-se în vedere anume termenii ce indică interacțiunea directă, precum și interacțiunea de schimb.
  • Excitonic and band parameters in SnSe crystals 
    SYRBU, N. N.; ZALAMAI, V. V. (Elsevier, 2020)
    In the present work, absorption, reflection and wavelength modulated transmission spectra in wide temperature range 300–10 K in regions of the band gap minimum and of transitions to the excitonic band were studied.
  • Excitonic and electronic transitions in Me–Sb2Se3 structures 
    SYRBU, Nicolae N.; ZALAMAI, Victor V.; STAMOV, Ivan G.; BERIL, Stepan I. (Beilstein Institut, 2020)
    The optical anisotropy of the Sb2Se3 crystals was investigated at 300 and 11 K. Excitonic features of four excitons (A, B, C, and D) were observed in the optical spectra of the Sb2Se3 single crystals and in the photoelectric ...
  • Excitonic Polaritons in ZnAs2 
    SYRBU, Nicolae; STAMOV, Ivan; DOROGAN, Andrei; NEMERENCO, Lucretia (IOP Publishing, 2006)
    The allowed exciton transitions n=1,2,3 were revealed in the reflection spectra of ZnAs2 monocrystals at 10 K. Transverse and longitudinal exciton energies, longitudinal splitting value, translation and reduced exciton ...
  • Excitonic polaritons in ZnAs2 
    ZALAMAI, V. V.; SYRBU, N. N.; STAMOV, I. G. (Institutul de Fizică Aplicată, 2016)
    Spectral dependences of normal and anomaly dispersions of refractive index were calculated from interferential reflection and transmission spectra. It was shown, that A and B excitonic series were due to by hole V1 and ...
  • Excitonic polaritons in ZnAs2 nanocrystals 
    STAMOV, I. G.; SÎRBU, N. N.; URSAKI, V. V.; DOROGAN, A. V. (Romanian Inventors Forum, 2017)
    The proposed method of high resolution spectroscopy gives the possibility to study the spectral dependencies of ordinary and extraordinary dispersion of refractive index for ZnAs2 crystals in the region of excitonic transitions.
  • Excitonic polaritons in ZnAs2 nanocrystals 
    SÎRBU, N. N.; URSAKI, V. V.; DOROGAN, A. V.; DOROGAN, V. V. (Technical University "Gheorghe Asachi" of Iași, 2017)
    The proposed method of high resolution spectroscopy gives the possibility to study the spectral dependencies of ordinary and extraordinary dispersion of refractive index for ZnAs2 crystals in the region of excitonic transitions.
  • Excitonic polaritons of zinc diarsenide single crystals 
    SYRBU, N. N.; STAMOV, I. G.; ZALAMAI, V. V.; DOROGAN, A. (Elservier, 2017)
    Excitonic polaritons of ZnAs2 single crystals had been investigated. Parameters of singlet excitons with Г2¯(z) symmetry and orthoexcitons 2Г1¯(y)+Г2¯(x) had been determined. Spectral dependencies of ordinary and extraordinary ...
  • Excitonic resonance spectra in QW and QD In0.3Ga0.7As/GaAs hetrostructures 
    DOROGAN, A.; DOROGAN, V.; MEREUTA, A.; SYRBU, A.; SYRBU, N.; VIERU, T.; URSAKI, V.; ZALAMAI, V. (Institutul de Fizică Aplicată al AŞM, 2012)
    The measurement of optical reflection and transmittance spectra had been carried out using MДР-2, JASCO-670 and СДЛ-1 spectrometers at 10K and 300K for S- and P-polarizations and different light angles incident on the ...
  • Excitonic spectra and band structure of CdGa2Se4 birefractive crystals 
    SYRBU, N. N.; STAMOV, I. G.; PARVAN, V. I.; ZALAMAI, V. V.; TIGINYANU, I. M. (Elservier, 2013)
    We report on the intersection of spectral dependences of refractive indices no and ne at the wavelengths 546nm (λ0) and 450nm (λ01) in CdGa2Se4 single crystals. The value of difference Δn=ne−no is equal to zero at the ...
  • Excitonic spectra and birefringence in TlGaS2 single crystals 
    TIRON, A. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    TlGaS2 crystals belong to triple thallium chalcogenides with well-pronounced lamellar structure. Due to specificity of crystal structure these crystals have a strong anisotropy of physical properties. The authors report ...
  • Excitonic spectra and energy band structure of ZnAl2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; TIRON, A. V.; TIGINYANU, I. M. (Elservier, 2015)
    Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main ...
  • Excitonic spectra and energy band structure of ZnAl2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; TIRON, A. V.; TIGINYANU, I. M. (Elsevier, 2015)
    Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main ...
  • Excitonic spectra in HgGa2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V. (Elservier, 2018)
    Ground and excited states of four excitonic series (A, B, C and D) were discovered in HgGa2Se4 crystals at 10 K. Parameters of excitons and bands were determined. An effective mass of electrons mc is equal to 0.26m0 and ...
  • Excitonic spectra of TlGaSe2 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; BEJAN, N. P.; TIRON, A. V. (Editura Academiei Romane, 2015)
    The indirect transitions in excitonic region with phonons emission in absorption spectra of TlGaSe2 crystals and ground and excited states of four excitonic series A, B, C and D were observed. The parameters of excitons ...
  • Excitonic states and electron transitions in HgGa2Se4 single crystals 
    ZALAMAI, V. V.; SYRBU, N .N.; TIRON, A. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    The HgGa2Se4 crystals were grown by gas-transport method in ampoules and were plates with mirrored surfaces ~ 5x7 mm and 2 - 6 mm thickness. The plate‘s surfaces were parallel with c axis and could be recognized visually. ...
  • Excitonic states in layered semiconductor single crystals 
    ZALAMAI, Victor; TIRON, Andrei; RUSU, Emil; STAMOV, Ivan (Technical University of Moldova, 2024)
    Optical properties of GaSe single crystals were investigated by measuring of reflection, transmission and photoluminescence spectra in wide temperature diapason 10 – 300 K. The parameters of three excitonic series for ...
  • Excitons and energetic bands structure of ZnP2-С2h 5 crystals 
    STAMOV, I. G.; DOROGAN, A. V.; SYRBU, N. N.; ZALAMAI, V. V. (Open Science Publishers, 2014)
    Reflectivity and transmittance spectra of ZnP2-C2h 5 crystals in the region of A, B and C excitons and E>Eg had been researched. The spectra had been calculated using dispersion correlations and the Kramers-Kronig correlations. ...
  • Excitons in TlGaSe2 crystals 
    ZALAMAI, V. V.; SYRBU, N. N.; TIRON, A. V. (Academia de Ştiinţe a Moldovei, 2014)
    TaGaSe2 semiconductors crystallize as a lamellar structure and have monoclinic lattice. One of the features of these crystals is a strong anisotropy of physical characteristics due to the specificity of the crystal structure. ...

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