Оxana Voitsekhivska
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View article: Effect of Acoustic Phonons on Thermoelectric Properties of Lead Iodide Nanofilms
Effect of Acoustic Phonons on Thermoelectric Properties of Lead Iodide Nanofilms Open
The effect of spatial confinement on the propagation velocity of acoustic phonons in planar quasi-2D nanostructures (nanofilms) based on the layered semiconductor 2H-PbI2, thermal conductivity coefficient and thermoelectric figure of merit…
View article: Spectral properties of a broadband far infrared photodetector with a new design of active region
Spectral properties of a broadband far infrared photodetector with a new design of active region Open
A quantum theory of spectral parameters and oscillator strengths of quantum transitions in an active region, which contains cascades of wide quantum wells with a complicated potential profile is developed. A new spatial design of the casca…
View article: Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K
Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K Open
Within unitary transformed Hamiltonian of Fröhlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at T=0 K in a model of the…
View article: Peculiarities of electron spectrum renormalized by optical phonons in the cascade of quantum cascade detector
Peculiarities of electron spectrum renormalized by optical phonons in the cascade of quantum cascade detector Open
â îñòàòî÷íîìó âèãëÿäi 21 ñåðïíÿ 2021 ð.; ïðèéíÿòî äî äðóêó 30 ñåðïíÿ 2021 ð.; îïóáëiêîâàíî îíëàéí 10 âåðåñíÿ 2021 ð.)  îäíîôîíîííîìó íàáëèaeåííi íà îñíîâi ãàìiëüòîíiàíà åëåêòðîí-ôîíîííî¨ñèñòåìè â çîáðàaeåííi âòîðèííîãî êâàíòóâàííÿ çà âñiì…
View article: Modeling of optimized cascade of quantum cascade detector operating in far infrared range
Modeling of optimized cascade of quantum cascade detector operating in far infrared range Open
Using the theory for electron energy spectrum and oscillator strengths of inter-subband quantum transitions, developed in the model of position-dependent effective mass and rectangular potentials, the geometrical design for the compact cas…
View article: Energy Spectrum of the System of Localized Two-level Quasi-particles Interacting with Polarization Phonons at Cryogenic Temperatures
Energy Spectrum of the System of Localized Two-level Quasi-particles Interacting with Polarization Phonons at Cryogenic Temperatures Open
Методом діаграмної техніки Фейнмана-Пайнса розраховано й досліджено перенормований взає- модією з поляризаційними фононами спектр двохрівневих локалізованих квазічастинок при кріоген- ній температурі. Показано, що зі зміною енергетичної ві…
View article: Photon- and phonon-assisted transport of electrons in resonant tunneling structures
Photon- and phonon-assisted transport of electrons in resonant tunneling structures Open
The quantum mechanical theory of photon-and phonon assisted tunneling of electrons through the open multilayered nanostructures being the cascades of quantum cascade detector and quantum cascade laser is developed.The theory of electronic …