Band-gap renormalization of modulation-doped quantum wires

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.11300

Sedlmaier, S. ; Stopa, M. ; Schedelbeck, Gert ; Wegscheider, Werner ; Abstreiter, Gerhard

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Veröffentlichungsdatum dieses Volltextes: 07 Dez 2009 13:03

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Zusammenfassung

We measure the photoluminescence spectra for an array of modulation doped, T-shaped quantum wires as a function of the one-dimensional density ne, which is modulated with a surface gate. We present self-consistent electronic structure calculations for this device which show a band-gap renormalization which, when corrected for excitonic energy and its screening, are largely insensitive to ne and ...