Screening of Bound-State Excitons in Modulated Reflectance
- 25 August 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 23 (8), 410-413
- https://doi.org/10.1103/physrevlett.23.410
Abstract
The influence of free-carrier screening of the Coulomb interaction on bound states of excitons in crystals is investigated. The dependences of the ground-state energy and oscillator strength of the free-carrier concentration are obtained within the effective mass formalism employing a screened Coulomb potential. The results are used to successfully predict CdS modulated reflectance line shapes as a function of free-carrier concentration.Keywords
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