Abstract
Photoluminescence (PL) and photoluminescence excitation (PLE) measurements on Cd xZn 1−xTe/ZnTe asymmetric coupled double quantum wells were performed to investigate the hot-exciton luminescence phenomena. The PLE spectra indicated the creation of hot excitons and subsequent relaxation by longitudinal optical-phonon emission resulting from the localization of excitons due to fluctuation of the Cd xZn 1−xTe alloy well.
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