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

Wegscheider, Werner ; Schedelbeck, Gert ; Neumann, Richard ; Bichler, Max
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Date of publication of this fulltext: 09 Nov 2009 13:06


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 ...


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