Lateral electric-field effects on excitonic photoemissions in InGaAs quantum disks
- 14 February 2000
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 76 (7) , 867-869
- https://doi.org/10.1063/1.125612
Abstract
Electric-field effects on excitons in zero-dimensional InGaAs quantum disks have been examined at low temperature. Photoluminescence from a single isolated disk was measured under the application of a lateral electric field by using the microphotoluminescence technique. A redshift of sharp excitonic luminescence and a decrease in its intensity under increasing electric field were observed. These were found to distinctively depend on the lateral extent of the disks: these were much more prominent in the larger disk. The exciton luminescence was found to be highly polarized along the direction of the field in the larger disk.Keywords
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