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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2007. V. 10, N 3. P. 051-057.
Electron, hole, and exciton spectra
in a quantum wire crossing the quantum well
Chernivtsi National University
2, Kotsyubinsky str., 58012 Chernivtsi, Ukraine; e-mail: theorphys@chnu.cv.ua
Abstract. The electron, hole, and exciton energy spectra are calculated within the
effective mass and rectangular potential approximations for a combined semiconductor
nanoheterosystem consisting of a cylindrical semiconductor quantum wire crossing the
plane quantum well. It is shown that the electron (hole) in such a system is characterized
by five quantum numbers related to five degrees of freedom for a quasiparticle. The
dependences of the quasiparticle energy on the quantum wire radius and the quantum
well width are researched.
Keywords: quantum wire, quantum well, quantum dot, energy spectrum.
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