Compositional dependence of direct transition energies in Si${}_x$Ge${}_{1-x-y}$Sn${}_y$ alloys lattice-matched to Ge/GaAs

Phoebe M. Pearce, Sheau Wei Ong, Andrew D. Johnson +2

Si${}_x$Ge${}_{1-x-y}$Sn${}_y$ ternary alloys are a candidate material system for use in solar cells and other optoelectronic devices. We report on the direct transition energies and str…