Controlled tuning of the radiative lifetime in InAs self-assembled quantum dots through vertical ordering
- 25 January 1999
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 74 (4) , 564-566
- https://doi.org/10.1063/1.123146
Abstract
Multilayer structures of InAs quantum dots have been studied by means of photoluminescence techniques. A strong increase of the radiative lifetime with increasing number of stacked dot layers has been observed at low temperatures. Moreover, a strong temperature dependence of the radiative lifetime, which is not present in the single layer samples, has been found in the multistacked structures. The observed effects are nicely explained as a consequence of the electronic coupling between electrons and holes induced by vertical ordering.Keywords
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