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- Kaniewska, M., et al.
(författare)
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Spatial variation of hole eigen energies in Ge/Si quantum wells
- 2011
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Ingår i: AIP Conference Proceedings. - 0094243X. - 978-073541002-2 ; 1399, s. 293-294
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Konferensbidrag (refereegranskat)abstract
- Ge quantum well (QW) structures were prepared through Si-capping of 3.3 ML of Ge by MBE on p +-(001) Si substrates at a growth temperature of 550°C. The spatial variation of hole eigen energies in the QW were revealed by DLTS. Depending on the position on the wafer surface, the hole emission may be imposed by a lateral quantum confinement effect. Results of a study by HRTEM methods demonstrate pronounced fluctuations of the QW thickness and variations of the strain field in the QW.
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