Energy shift and line broadening of three-dimensional excitons in electric fields
- 15 October 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (12) , 6609-6612
- https://doi.org/10.1103/physrevb.36.6609
Abstract
We measure electric-field-induced energy shifts and line broadening of three-dimensional excitons in thin GaAs layers in reflectance and photoluminescence. We observe a small red shift due to the excitonic Stark effect for small electric fields. Subsequently, we find reversal to a blue shift for higher electric fields, due to mixing with continuum states. The exciton line broadens monotonically with increasing field because of field ionization.Keywords
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