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Band-gap renormalization and excitonic effects in tunneling in asymmetric double quantum wells

Renormierung der Bandlücke und exzitonische Effekte bein Tunneln in asymmeterischen Doppel Quantum Wells
: Tackeuchi, A.; Heberle, A.P.; Rühle, W.W.; Köhler, K.


Japanese Journal of applied physics. Part 2, Letters 34 (1995), No.5A, pp.L543-L546 : Abb.,Lit.
ISSN: 0021-4922
Journal Article
Fraunhofer IAF ()
III-V Halbleiter; III-V semiconductors; quantum wells; time-resolved photoluminescence; zeitaufgelöste Photolumineszenz

Tunneling in asymmetric double quantum wells is studied using time-resolved hotoluminescence. The photoluminescence lineshape and peak position of the narrow quantum well are strongly influenced by band-gap renormalization caused by the tunneling carriers. Tunneling is quenched in a field regime of Ï 10 kV/cm around the groundstate resonance due to excitonic effects.