Archivio Istituzionale della RicercaWe present a theoretical analysis of the effect of dielectric confinement on the Coulomb interaction in dielectrically modulated quantum structures. We discuss the implications of the strong enhancement of the electron–hole and electron–electron coupling for two specific examples: (i) GaAs-based quantum wires with remote oxide barriers, where combined quantum and dielectric confinements are predicted to lead to room temperature exciton binding, and (ii) semiconductor quantum dots in colloidal environments, where the addition spectra are predicted to depend on the dielectric mismatch.
Enhancement of Coulomb interactions in semiconductor nanostructures by dielectric confinement / Goldoni, G.; Rossi, Fausto; Orlandi, A.; Rontani, M.; Manghi, F.; Molinari, E.. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - 6:1-4(2000), pp. 482-485. [10.1016/S1386-9477(99)00218-0]
Enhancement of Coulomb interactions in semiconductor nanostructures by dielectric confinement
ROSSI, FAUSTO;
2000
Abstract
We present a theoretical analysis of the effect of dielectric confinement on the Coulomb interaction in dielectrically modulated quantum structures. We discuss the implications of the strong enhancement of the electron–hole and electron–electron coupling for two specific examples: (i) GaAs-based quantum wires with remote oxide barriers, where combined quantum and dielectric confinements are predicted to lead to room temperature exciton binding, and (ii) semiconductor quantum dots in colloidal environments, where the addition spectra are predicted to depend on the dielectric mismatch.
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https://hdl.handle.net/11583/1405223
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