Research output: Contribution to journal › Article › peer-review
Application of synchrotron-radiation-based x-ray microprobe techniques for the analysis of recombination activity of metals precipitated at Si/SiGe misfit dislocations. / Vyvenko, O. F.; Buonassisi, T.; Istratov, A. A.; Weber, E. R.; Kittler, M.; Seifert, W.
In: Journal of Physics Condensed Matter, Vol. 14, No. 48, 16.12.2002, p. 13079-13086.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Application of synchrotron-radiation-based x-ray microprobe techniques for the analysis of recombination activity of metals precipitated at Si/SiGe misfit dislocations
AU - Vyvenko, O. F.
AU - Buonassisi, T.
AU - Istratov, A. A.
AU - Weber, E. R.
AU - Kittler, M.
AU - Seifert, W.
PY - 2002/12/16
Y1 - 2002/12/16
N2 - In this study we report application of synchrotron-radiation-based x-ray microprobe techniques (the x-ray-beam-induced current (XBIC) and x-ray fluorescence (μ-XRF) methods) to the analysis of the recombination activity and space distribution of copper and iron in the vicinity of dislocations in silicon/silicon-germanium structures. A combination of these two techniques enables one to study the chemical nature of the defects and impurities and their recombination activity in situ and to map metal clusters with a micron-scale resolution. XRF analysis revealed that copper formed clearly distinguishable precipitates along the misfit dislocations. A proportional dependence between the XBIC contrast and the number of copper atoms in the precipitates was established. In hydrogen-passivated iron-contaminated samples we observed clusters of iron precipitates which had no recombination activity detectable by the XBIC technique as well as iron clusters which were not completely passivated.
AB - In this study we report application of synchrotron-radiation-based x-ray microprobe techniques (the x-ray-beam-induced current (XBIC) and x-ray fluorescence (μ-XRF) methods) to the analysis of the recombination activity and space distribution of copper and iron in the vicinity of dislocations in silicon/silicon-germanium structures. A combination of these two techniques enables one to study the chemical nature of the defects and impurities and their recombination activity in situ and to map metal clusters with a micron-scale resolution. XRF analysis revealed that copper formed clearly distinguishable precipitates along the misfit dislocations. A proportional dependence between the XBIC contrast and the number of copper atoms in the precipitates was established. In hydrogen-passivated iron-contaminated samples we observed clusters of iron precipitates which had no recombination activity detectable by the XBIC technique as well as iron clusters which were not completely passivated.
UR - http://www.scopus.com/inward/record.url?scp=0037122117&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/14/48/353
DO - 10.1088/0953-8984/14/48/353
M3 - Article
AN - SCOPUS:0037122117
VL - 14
SP - 13079
EP - 13086
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 48
ER -
ID: 87815073