(1 1 0) oriented quantum wells and modulation-doped heterostructures for cleaved edge overgrowth

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.10871

Wegscheider, Werner ; Schedelbeck, Gert ; Neumann, Richard ; Bichler, Max

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Veröffentlichungsdatum dieses Volltextes: 09 Nov 2009 13:06

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Zusammenfassung

The dependence of the optical quality, i.e. the line width and homogeneity of (1 1 0) oriented quantum wells on the substrate temperature, the As pressure as well as on the AsImage species is studied by means of micro-photoluminescence. Molecular beam epitaxial growth using the AsImage dimer leads to a photoluminescence line width as narrow as 5.5 meV for 7 nm wide quantum wells compared to a ...