The influence of carrier diffusion on the formation of charged excitons in InAs/GaAs quantum dots

Karlsson, Fredrik,1974-Linköpings universitet,Tekniska högskolan,Halvledarmaterial (author)

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.

Moskalenko, Evgenii,2000-Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi(Swepub:liu)evgmo15 (author)
Holtz, Per-Olof,1951-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)perho67 (author)
Monemar, Bo,1942-Linköpings universitet,Tekniska högskolan,Halvledarmaterial(Swepub:liu)bomo46 (author)
Garcia, J.M. (author)
Schoenfeld, W.V. (author)
Petroff, P.M. (author)
Linköpings universitetTekniska högskolan (creator_code:org_t)

In:Physica. E, Low-Dimensional systems and nanostructures13:2-4, s. 101-1041386-94771873-1759

By the author/editor: Karlsson, Fredri ...; Moskalenko, Evge ...; Holtz, Per-Olof, ...; Monemar, Bo, 194 ...; Garcia, J.M.; Schoenfeld, W.V.; show more...; Petroff, P.M.; show less...

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