Long-wavelength photoluminescence of InAs1−xSbx (0<x<1) grown by molecular beam epitaxy on (100) InAs

Abstract
InAs1−xSbx films have been successfully prepared by molecular beam epitaxy on (100) InAs substrates. Long‐wavelength photoluminescence has been investigated over the complete compositional range. Luminescence peak wavelengths as long as 8 μm have been obtained for the first time among III‐V compound semiconductor materials in spite of the existence of a large lattice mismatch. These results are indicative of high‐quality material.