Communications in Theoretical Physics
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XIE Wen-Fang
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Abstract: The energy spectra of the ground state for an exciton (X) trapped by a neutral acceptor (A0) in a quantum dot with a parabolic confinement have been calculated as a function of the electron-to-hole mass ratio σ by using the hyperspherical coordinates. We find that the (A0,X) complex confined in a quantum dot has in general a larger binding energy than those in a two-dimensional quantum well and a three-dimensional bulk semiconductor, and the binding energy decreases with the increase of the electron-to-hole mass ratio.
Key words: exciton complex, quantum dot
PACS numbers:
XIE Wen-Fang, Commun. Theor. Phys. 41 (2004) 127.
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https://ctp.itp.ac.cn/EN/Y2004/V41/I01/127
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