Carrier tunneling in ZnCdSe/ZnSe asymmetric double-quantum-well structure

摘要

Optical characteristics of ZnCdSe/ZnSe asymmetric double- quantum-well structure grown by LP-MOCVD were studied. By analyzing the photoluminescence spectra, we found that the excitation power and temperature could influence the tunneling of the excitons, and due to different tunneling time of electrons and holes, space-charge effect was observed.