Compositional dependence of the direct and indirect band gaps in ${\text{Ge}}_{1-y}{\text{Sn}}_y$ alloys from room temperature photoluminescence

L. Jiang, J. D. Gallagher, C. L. Senaratne +4

The compositional dependence of the lowest direct and indirect band gaps in ${\text{Ge}}_{1-y}{\text{Sn}}_y$ has been determined from room-temperature photoluminescence measurements.…