PL EN


Preferences help
enabled [disable] Abstract
Number of results
1997 | 92 | 5 | 1038-1042
Article title

Calculation of Excitonic Absorption Spectrum of GaAs Quantum Wire Free-Standing in Vacuum

Content
Title variants
Languages of publication
EN
Abstracts
EN
The electron-hole interaction in a thin (≈10 nm) GaAs quantum wire free-standing in vacuum is strongly enhanced by the image charge due to the abrupt permittivity drop at the wire surface. As a result, the exciton binding energies are much larger and the exciton wave functions much more localised than those of the GaAs quantum wire surrounded by the AlGaAs. The absorption spectrum of the free-standing wire shows besides the 1s exciton peak also the 3s and 5s exciton peaks, even if the peaks are 15 meV broad. The continuum absorption edge shows a large blue shift due to the renormalization of single-particle energies by the image charge.
Keywords
EN
Publisher

Year
Volume
92
Issue
5
Pages
1038-1042
Physical description
Dates
published
1997-11
Contributors
author
  • Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 842 39 Bratislava, Slovak Republic
author
  • Department of Solid State Physics, Faculty of Science Masaryk University, Kotlářská 2, 611 37, Czech Republic
author
  • Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 842 39 Bratislava, Slovak Republic
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv92z542kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.