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11 June 2003 Separate electron-hole confinement in composite InAsyP1-y/GaxIn1-xAs quantum wells
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Abstract
Composite double qunatum wells made from materials with a type-II band line-up have been grown to realize separate confinement in real space for electrons and holes. We have observed a substantial blue shift of the lowest energy transition in such composite double quantum wells. The photocurrent measurements demonstrate a linear Stark shift due to the separate confinement in real space for electrons and holes. The charge separation is up to 45 Å in the strain balanced InAs0.42P0.58/Ga0.67In0.33As samples. The experimental results agree very well with calculations in the framework of Bir-Pikus strain Hamiltonian.
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A. Yu. Silov, Balakrishnan Nair Aneeshkumar, M. R. Leys, N. S. Averkiev, P. C. M. Christianen, and Joachim H. Wolter "Separate electron-hole confinement in composite InAsyP1-y/GaxIn1-xAs quantum wells", Proc. SPIE 5023, 10th International Symposium on Nanostructures: Physics and Technology, (11 June 2003); https://doi.org/10.1117/12.513817
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