Quasi‐Two‐Dimensional Screening of the Electron‐Hole Interaction in Modulation‐Doped Quantum Wells
- 1 May 1990
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 159 (1), 143-154
- https://doi.org/10.1002/pssb.2221590116
Abstract
The screening of the electron‐hole interaction is studied for n‐type modulation‐doped double heterostructures including the effects of size quantization and spatial dispersion accompanying the presence of free carriers. Two different screening models are studied and compared. The resulting screcned potentials are applied to estimate the exciton binding energies by means of a variational procedure. The results are discussed in dependence on the sheet carrier concentration and the well width.Keywords
This publication has 8 references indexed in Scilit:
- Intersubband Mixing of Coupled Plasmon‐Phonons in Double HeterostructuresPhysica Status Solidi (b), 1988
- Dynamical Screening, Collective Excitations, and Electron–Phonon Interaction in Heterostructures and Semiconductor Quantum Wells. General TheoryPhysica Status Solidi (b), 1986
- Dielectric Screening, Polar Phonons, and Longitudinal Electronic Excitations of Quantum Well Double Heterostructures Application to Light Scattering from Charge Density FluctuationsPhysica Status Solidi (b), 1985
- Electric-field-induced dissociation of excitons in semiconductor quantum wellsPhysical Review B, 1985
- Inverse dielectric function for a semi‐infinite solidPhysica Status Solidi (b), 1983
- Binding energies of wannier excitons in GaAs-Ga1−xAlxAs quantum well structuresSolid State Communications, 1983
- Exciton binding energy in quantum wellsPhysical Review B, 1982
- Observation of the excited level of excitons in GaAs quantum wellsPhysical Review B, 1981