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Journal of Physical Studies 10(4), 315–329 (2006)
DOI: https://doi.org/10.30970/jps.10.315 QUASIPARTICLES SPECTRA IN MULTISHELL SEMICONDUCTOR NANOHETEROSYSTEMSM. V. Tkach, O. M. Voitsekhivska, V. A. Holovatsky, O. M. Makhanets, A. M. Gryschuk
Fedkovych Chernivtsi National University, |
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A general overview of the papers about the theory of quasiparicles spectra (electrons, holes, excitons) in the semiconductor closed and opened nanoheterosystems (spherical quantum dots, cylindrical quantum wires) is performed. The investigations are performed within the effective mass approximation and in the framework of rectangular potentials method. The latter are rather simple and they give a good correlation with the experimental data and are convenient for the study of interaction between quasiparticles and phonons in nanoheterosystems where other more detailed models have some mathematical problems.
In the paper the properties of the electron, hole and exciton spectra in complicated spherical quantum dots and cylindrical quantum wires are analyzed in detail. The physical reasons for the similarities and differences of quasiparticles spectra in closed and opened nanoheterosystems are established.
PACS number(s): 73.21.Fg, 73.21.Hb, 73.21.La