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Proceedings Paper

Screened excitons between excited subbands in n-type modulation-doped quantum wells
Author(s): Andre Bohomoletz Henriques
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Paper Abstract

A semi-analytical calculation of the screened exciton binding energies in modulation-doped quantum wells with one occupied subband is presented, whereby the finite thickness of the confined screening charge is included, giving good agreement with recent experimental reports. It is forecasted that in one-side doped quantum well, above a critical sheet carrier density, the exciton binding energy increases, as a consequence of the band-bending effect. Under an applied magnetic field the magneto-exciton binding energy increases very rapidly, which is compared to a much weaker field dependence in the undoped well.

Paper Details

Date Published: 3 September 1992
PDF: 6 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137595
Show Author Affiliations
Andre Bohomoletz Henriques, Univ. de Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV
Gottfried H. Doehler; Emil S. Koteles, Editor(s)

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