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The influence of carrier diffusion on the formation of charged excitons in InAs/GaAs quantum dots
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Materials Science .ORCID iD: 0000-0002-4547-6673
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Materials Science .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Materials Science .
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2002 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 13, no 2-4, 101-104 p.Article in journal (Refereed) Published
Abstract [en]

It is demonstrated that the photoluminescence spectra of single self-assembled quantum dots are very sensitive to the excitation energy and crystal temperature. A qualitative explanation is given in terms of the effective diffusivity of the photogenerated carriers, determined by the experimental conditions, which influence the capture probability and hence also the charge state of the quantum dots (QDs). This is proposed as an effective tool to populate quantum dots with extra electrons in order to study phenomena involving charged excitons. ⌐ 2002 Elsevier Science B.V. All rights reserved.

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2002. Vol. 13, no 2-4, 101-104 p.
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Natural Sciences
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URN: urn:nbn:se:liu:diva-40635DOI: 10.1016/S1386-9477(01)00496-9Local ID: 53685OAI: oai:DiVA.org:liu-40635DiVA: diva2:261484
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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Karlsson, FredrikMoskalenko, EvgeniiHoltz, Per-OlofMonemar, Bo

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