Properties of Excitons Bound to Ionized Donors

Torben Skettrup, M. Suffczynski, W. Gorzkowski

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Binding energies, interparticle distances, oscillator strengths, and exchange corrections are calculated for the three-particle complex corresponding to an exciton bound to an ionized donor. The results are given as functions of the mass ratio of the electron and hole. Binding of the complex is obtained for mass ratios up to 0.426. The interparticle distances are up to 50 times larger than the corresponding exciton radius. The oscillator strengths are about 104 times greater than those of free excitons, while the exchange corrections for the complex are comparable to those of free excitions. The results are applied to CdS and ZnO and compared with experimental results on these.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Issue number2
Pages (from-to)512-517
Publication statusPublished - 1971

Bibliographical note

Copyright (1971) by the American Physical Society.

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