The Spectra and Lifetimes of Electrons, Holes, and Excitons in Open Cylindrical Quantum Dots Embedded Into Quantum Wires or Wells
Zhytomyr State University Library
Переглянути архів Інформація| Поле | Співвідношення | |
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http://eprints.zu.edu.ua/6587/
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| Title |
The Spectra and Lifetimes of Electrons, Holes, and Excitons in Open Cylindrical Quantum Dots Embedded Into Quantum Wires or Wells
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| Creator |
Gryschyк, А. М.
Maкhanets, О. М. |
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| Subject |
QC Physics
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| Description |
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. |
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| Date |
2005
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| Type |
Article
PeerReviewed |
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| Format |
text
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| Language |
uk
english |
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| Identifier |
http://eprints.zu.edu.ua/6587/1/501211p.pdf
Gryschyк, А. М. and Maкhanets, О. М. (2005) The Spectra and Lifetimes of Electrons, Holes, and Excitons in Open Cylindrical Quantum Dots Embedded Into Quantum Wires or Wells. Ukr. J. Phys., 50 (12). pp. 1389-1396. ISSN 0503-1265 |
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