TY - JOUR ID - zu26587 UR - http://eprints.zu.edu.ua/6587/ IS - 12 A1 - Gryschy?, ?. ?. A1 - Ma?hanets, ?. ?. Y1 - 2005/// N2 - The spectra and lifetimes of an electron, a hole, and an exciton in open cylindrical quantum dots (QDs) embedded into various environments ? a cylindrical quantum wire (QW) and a plane quantum well which, in their turn, are located in a massive three-dimensional medium ? have been studied theoretically. The relevant calculations were carried out in the framework of the effective mass approximation and for a rectangular potential. The analytical expression for the scattering matrix (S-matrix) has been obtained. The real part of the S-matrix pole defines the energy of a quasi-stationary state, while the imaginary one defines its halfwidth and, accordingly, the lifetime of a quasiparticle in this state. Numerical calculations of the spectra and lifetimes of an electron, a hole, and an exciton were carried out for nanoheterosystems composed on the basis of semiconductors ¯- HgS and ¯-CdS. JF - Ukr. J. Phys. VL - 50 KW - electron KW - exiton KW - spectra SN - 0503-1265 TI - The Spectra and Lifetimes of Electrons, Holes, and Excitons in Open Cylindrical Quantum Dots Embedded Into Quantum Wires or Wells SP - 1389 AV - public EP - 1396 ER -