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  • Yunakova, O.N.; Miloslavskii, V.K.; Kovalenko, E.N. (Functional Materials, 2013)
    The absorption spectra of thin films of (KI)₁₋x(PbI₂)x 0.1≤ x≤ 0.5 were investigated in the spectral interval 2–6 eV. The formation of two compounds KPbI₃ and K₄PbI₆ in system KI–PbI₂ was determined on the basis of the ...
  • Sugakov, V.I. (Физика низких температур, 2006)
    The theory of exciton condensation is given in two-dimensional systems under suggestion that condensation occurs in really space and condensed phase arises as a result of an attractive interaction between excitons. Due ...
  • Sugakov, V.I. (Condensed Matter Physics, 2014)
    The hydrodynamic equations for indirect excitons in the double quantum wells are studied taking into account 1) a possibility of an exciton condensed phase formation, 2) the presence of pumping, 3) finite value of the ...
  • Tomylko, V.V.; Goliney, I.Yu.; Chernyuk, A.A.; Sugakov, V.I. (Физика низких температур, 2014)
    The condensation of indirect excitons in double quantum wells is studied in an electric field created by electrodes of different shapes. The finite value of the exciton lifetime, the pumping and nonuniformity of the electric ...
  • Sachenko, A.V.; Gorban, A.P.; Korbutyak, D.V.; Kostylyov, V.P.; Kryuchenko, Yu.V.; Chernenko, V.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2004)
    A theoretical analysis of the band-edge electroluminescence efficiency in silicon diodes and p-i-n-structures has been made. We have shown that maximal possible efficiency can achieve 10 % both at room and liquid nitrogen ...
  • Sachenko, A.V.; Gorban, A.P.; Kostylyov, V.P. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    The interrelation between processes of electron-hole recombination and annihilation of excitons in silicon is examined. It is shown, that recombination processes can be essentially influenced by the exciton annihilation ...
  • Sachenko, A.V.; Kryuchenko, Yu.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    A theoretical analysis is developed for ascertaining the influence of exciton states on edge luminescence in different semiconductors at high temperatures and high levels of excitation. Screening effects and the Mott ...
  • Gamayun, O.V.; Gorbar, E.V.; Gusyn, V.P. (2010)
    We analyze the excitonic instability in graphene by solving the Bethe–Salpeter equation for the electron-hole bound state. In the supercritical regime, we show that this equation has a tachyon in its spectrum. We argue ...
  • Katerynchuk, V.M.; Kovalyuk, Z.D.; Tkachuk, I.G. (Functional Materials, 2017)
    Present spectra of photosensitivity of various types of heterojunctions based on layered crystals A³B⁶ made of the Van der Waals connection of pairs on heteromer as well as covalent. We also discuss the features of excitonic ...
  • Tkach, M.V.; Seti, Ju.O. (Condensed Matter Physics, 2007)
    The theory of exciton spectrum in spherically symmetric states for the three- shell closed spherical quantum dot is proposed. The evolution of the exciton spectrum while varying the outer well thickness from zero (stationary ...
  • Savchenko, E.V.; Ogurtsov, A.N.; Zimmerer, G. (Физика низких температур, 2003)
    The lattice defect formation in solid Ne induced by electronic excitation was studied using the selective vacuum ultraviolet spectroscopy method. The samples were excited with synchrotron radiation in the range of excitonic ...
  • Sorokin, A.V.; Gnap, B.A.; Fylymonova, I.I.; Yefimova, S.L. (Functional Materials, 2012)
    Exciton transport efficiency in pseudoisocyanine (PIC) J-aggregates formed in PVA thin film has been studied using an exciton trap. As a trap, anionic cyanine dye DiD-C3S has been used. Luminescence spectra have been ...
  • Moskalenko, S.A.; Tiginyanu, I.M. (Физика низких температур, 2016)
    We present a review of the investigations realized in the last decades of the phenomenon of the Bose–Einstein condensation (BEC) in the system of two-dimensional cavity polaritons in semiconductor nanostructures. The ...
  • Song, K.S. (Физика низких температур, 2003)
    We report here recent study of molecular dynamics simulation of exciton relaxation in several ionic crystals at low temperature. Both the lowest energy spin triplet and some of the low lying hole excited states are allowed ...
  • Kupchak, I.M.; Kryuchenko, Yu.V.; Korbutyak, D.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2006)
    An original iterative procedure has been developed to obtain energy spectrum of neutral and charged excitons (positive and negative trions) in spherical semiconductor quantum dots (QD) imbedded into a dielectric material. ...
  • Ogurtsov, A.N.; Savchenko, E.V.; Sombrowski, E.; Vielhauer, S.; Zimmerer, G. (Физика низких температур, 2003)
    The recent study of molecular trapped centers in Xe cryocrystals was extended on triatomic self-trapped excitons. Time- and spectrally-resolved molecular luminescence was measured in the temperature range 5–60 K. The ...
  • Pokutnyi, S.I.; Gorbyk, P.P.; Makhno, S.M.; Prokopenko, S.L.; Mazurenko, R.V. (Наносистеми, наноматеріали, нанотехнології, 2017)
    As found, within the band gap of the quantum dot of zinc selenide, a zone of exciton states located at the bottom of the conduction band appears. As shown, a decrease in the band gap width for this nanosystem is conditioned ...
  • Stepanchikov, D.M.; Chuiko, G.P. (Condensed Matter Physics, 2009)
    Theoretical study of excitons spectra is offered in this report as for Zn₃P₂ crystals. Spectra are got in the zero approach of the theory of perturbations with consideration of both the anisotropy of the dispersion law and ...
  • Makhanets, O.M.; Gutsul, V.I.; Tsiupak, N.R.; Voitsekhivska, O.M. (Condensed Matter Physics, 2012)
    The theory of exciton spectrum in multi-shell hexagonal semiconductor nanotube is developed within the effective masses and rectangular potentials approximations using the method of effective potential. It is shown that ...
  • Ammar-Khodja, F.; Abdellali, M. (Цитология и генетика, 2015)
    The chromosomal abnormalities of number and structure or the 22q11.2 and 10p13-14 microdeletions are considered the main causes of congenital heart disease. In our best knowledge, cytogenetics studies on congenital heart ...