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Updated: Mar 27, 2026

Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
Published on: September 28, 2016
Valence band offset at the Si/SiSn interface by applying deep level transient spectroscopy
Victor-Tapio Rangel-Kuoppa1, Alexander Tonkikh2, Nikolay Zakharov3
1Institute of Semiconductor- and Solid State Physics, Johannes Kepler Universität, A-4040 Linz, Austria.
Abstract:
A set of Si1-x Sn x /Si(001) quantum wells (QWs) is grown by applying molecular beam epitaxy. The activation energies of holes in these QWs are studied by deep-level transient spectroscopy. It is observed that the holes activation energies increase monotonically with the Sn fraction (x). The valence band offset between pseudomorphic Si1-x Sn x and Si obeys the dependence ΔE(v) = 1.69x eV, while the offset between the average valence bands of unstrained Si1-x Sn x /Si heterojunction was deduced and obeys the dependence ΔE(v(av)) = 1.27x eV.
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