skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Excitons and charged excitons in semiconductor quantum wells

Abstract

A variational calculation of the ground-state energy of neutral excitons and of positively and negatively charged excitons (trions) confined in a single-quantum well is presented. We study the dependence of the correlation energy and of the binding energy on the well width and on the hole mass. The conditional probability distribution for positively and negatively charged excitons is obtained, providing information on the correlation and the charge distribution in the system. A comparison is made with available experimental data on trion binding energies in GaAs-, ZnSe-, and CdTe-based quantum well structures, which indicates that trions become localized with decreasing quantum well width. (c) 2000 The American Physical Society.

Authors:
 [1];  [1];  [2]
  1. Departement Natuurkunde, Universiteit Antwerpen (UIA), B-2610 Antwerpen, (Belgium)
  2. Physics Department, Argonne National Laboratories, Argonne, Illinois 60439 (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
20216563
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 20; Other Information: PBD: 15 May 2000; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; EXCITONS; SEMICONDUCTOR JUNCTIONS; ELECTRONIC STRUCTURE; GALLIUM ARSENIDES; ZINC SELENIDES; CADMIUM TELLURIDES; BINDING ENERGY; THEORETICAL DATA

Citation Formats

Riva, C., Peeters, F. M., and Varga, K. Excitons and charged excitons in semiconductor quantum wells. United States: N. p., 2000. Web. doi:10.1103/PhysRevB.61.13873.
Riva, C., Peeters, F. M., & Varga, K. Excitons and charged excitons in semiconductor quantum wells. United States. doi:10.1103/PhysRevB.61.13873.
Riva, C., Peeters, F. M., and Varga, K. Mon . "Excitons and charged excitons in semiconductor quantum wells". United States. doi:10.1103/PhysRevB.61.13873.
@article{osti_20216563,
title = {Excitons and charged excitons in semiconductor quantum wells},
author = {Riva, C. and Peeters, F. M. and Varga, K.},
abstractNote = {A variational calculation of the ground-state energy of neutral excitons and of positively and negatively charged excitons (trions) confined in a single-quantum well is presented. We study the dependence of the correlation energy and of the binding energy on the well width and on the hole mass. The conditional probability distribution for positively and negatively charged excitons is obtained, providing information on the correlation and the charge distribution in the system. A comparison is made with available experimental data on trion binding energies in GaAs-, ZnSe-, and CdTe-based quantum well structures, which indicates that trions become localized with decreasing quantum well width. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevB.61.13873},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 20,
volume = 61,
place = {United States},
year = {2000},
month = {5}
}