TY - JOUR
T1 - Structural characterization of tin nanocrystals embedded in silicon by atomic probe tomography
AU - Roesgaard, Soren
AU - Talbot, Etienne
AU - Hatzoglou, Constantinos
AU - Hansen, John Lundsgaard
AU - Julsgaard, Brian
PY - 2019/3/6
Y1 - 2019/3/6
N2 - Tin nanocrystals embedded in silicon are studied by atom probe tomography and by photoluminescence spectroscopy in the 0.76-1.07 eV region of emission energies. The nanocrystals have been fabricated by molecular beam epitaxy followed by a post-growth annealing step at various temperatures. One particular sample, annealed at a temperature of 725 degrees C, shows a distinctly higher optical activity. It is found, however, that the distinct behavior cannot be explained by variations in the nanocrystal composition or in the properties of Sn atoms dissolved in the surrounding Si matrix, which can be investigated by atom probe tomography.
AB - Tin nanocrystals embedded in silicon are studied by atom probe tomography and by photoluminescence spectroscopy in the 0.76-1.07 eV region of emission energies. The nanocrystals have been fabricated by molecular beam epitaxy followed by a post-growth annealing step at various temperatures. One particular sample, annealed at a temperature of 725 degrees C, shows a distinctly higher optical activity. It is found, however, that the distinct behavior cannot be explained by variations in the nanocrystal composition or in the properties of Sn atoms dissolved in the surrounding Si matrix, which can be investigated by atom probe tomography.
KW - Sn-nanocrystals
KW - atom probe tomography
KW - photoluminescence
KW - NANOSTRUCTURES
U2 - 10.1088/2053-1591/ab0948
DO - 10.1088/2053-1591/ab0948
M3 - Journal article
SN - 2053-1591
VL - 6
JO - Materials Research Express
JF - Materials Research Express
IS - 6
M1 - 065005
ER -