Room temperature excitonic absorption in CdZnTe/ZnTe quantum wells: Contributions to exciton linewidth

Abstract
We explore the inhomogeneous and homogeneous contributions to the excitonlinewidth that have allowed the recent observation of room temperature excitonic absorption in II–VI semiconductorquantum wells. Our measurements of the absorptionspectrum in a range of Cd x Zn1−x Te/ZnTe quantum wellheterostructures indicate that temperature‐dependent contributions to the excitonlinewidth are influenced by alloy composition.