The negatively charged exciton in double-layer quantum dots
Department of Physics, Guangzhou University, Guangzhou 510405, P.R. China
Published online: 15 October 2000
The hyperangular equation for charged semiconductor complexes in a double-layer harmonic quantum dot was solved numerically by using the correlated hyperspherical harmonics as basis functions. By using this method, we have calculated the energy spectra of the low-lying states of a charged exciton as a function of the radius of the quantum dot and the binding energy spectra of the ground state as a function of the radius of the quantum dot for a few values of the distance between the vertically coupled dots and the electron-to-hole mass ratio.
PACS: 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers) / 71.35.-y – Excitons and related phenomena / 78.66.Fd – III -V semiconductors
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000