Browsing Colecția instituțională by Title

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  • 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. ...
  • Exciton–phonon luminescence and Raman scattering in CuGaS2 crystals 
    SYRBU, N. N.; TEZLEVAN, V. E.; GALBICH, I.; NEMERENCO, L. L.; URSAKI, V. V. (ELSEVIER, 2009)
    Photoluminescence and resonance Raman scattering spectra of CuGaS2 crystals are investigated at low temperature (10K) under the excitation with the radiation from a spectral interval obtained by passing the radiation of ...
  • Excursul conceptului de “putere” asupra condiţiei umane 
    PERCIUN, Andrei (Institutul de Cercetări Juridice şi Politice al AŞM, 2009)
    This study will analyze the crystallization of the speech of conscience in society. It will also identify the status of the institutions that involves mechanisms with integrative effect social set for each individual in ...
  • Executarea lucrărilor cadastrale în scopul delimitării terenurilor proprietate publică 
    ROTARENCO, Adriana (Universitatea Tehnică a Moldovei, 2023)
    Studiul respectiv a fost analizat în localitatea Zgurița, raionul Drochia şi constituie una din principalele lucrări cadastrale cu referinţă la lucrările cadastrale de delimitare cadastrală a terenurilor proprietate publică ...
  • Executarea unei cereri (Query) în MS SQL Server 
    MORARU, Ion (Universitatea Tehnică a Moldovei, 2023)
    În articolul dat este reprezentat cum funcționează SQL Server și cum să-i valorificam puterea. O cerere de date poate fi trimisa spre execuție in mai multe moduri, dar SQL Server are un regim definit cum sa le execute si ...
  • Exfolierea materialelor 2D SnS, SnS2 şi SnSe prin metode și tehnici cost-efective 
    BATIRI, Mihail (Universitatea Tehnică a Moldovei, 2023)
    Materialele bidimensionale, cum ar fi sulfura de staniu (SnS), disulfura de staniu (SnS2) și selenura de staniu (SnSe), prezintă proprietăți unice și potențiale aplicații în domenii precum electronica, optoelectronica, ...
  • Exigenţe faţă de strugurii şi vinurile ecologice 
    GĂINĂ, Boris; POULARD, Alain; GURJUI, Eliza; RAPCEA, Mihail; RUSU, Emilian; OBADĂ, Leonora (Institutul Științifico-Practic de Horticultură și Tehnologii Alimentare, 2015)
    Problema cultivării strugurilor și a obținerii din ei a produselor de procesare industrială (sucuri, concentrate, băuturi răcoritoare și vinuri de diferite tipuri) biologice (ecologice) necesită o abordare complexă, ...
  • Exigenţe pentru struguri şi vinuri ecologice (biologice) 
    GĂINĂ, Boris; POULARD, Alain; GURJUI, Eliza; RAPCEA, Mihail (Academia de Științe a Moldovei, 2015)
    Articolul analizează posibilităţile obţinerii vinurilor ecologice (biologice) cu utilizarea biopreparatelor de protecţie a viţei de vie contra bolilor şi vătămătorilor. Autorii prezintă primele rezultate practice realizate ...

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