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Volltext Helfrich_Mathieu.pdf1.pdf (47,2 MB)
URN (für Zitat) http://nbn-resolving.org/urn:nbn:de:swb:90-290511
Titel Controlling the distribution and the structural properties of positioned quantum dots
Autor Helfrich, Mathieu Frédéric
Institution Institut für Angewandte Physik (APH)
Dokumenttyp Buch
Verlag Karlsruhe
Jahr 2012
Hochschulschrift Dissertation
Fakultät für Physik (PHYSIK)
Institut für Angewandte Physik (APH)
Prüfungsdaten: 13.07.2012
Referent/Betreuer: Prof. H. Kalt
Abstract Indium arsenide quantum dots were site-selectively grown on patterned gallium arsenide substrates. The mechanisms which influence the distribution and the structural properties of positioned quantum dots were investigated. Geometrical parameters of the pits and growth parameters were studied in order to reveal possible ways to control these parameters. In situ annealing experiments were performed, offering additional possibilities to adjust the size and the density of positioned quantum dots.