Abstract:The binding energies of heavy‐hole excitons in asymmetric strained wurtzite Alx Ga1‐xN/GaN/Aly Ga1‐yN quantum wells are investigated theoretically with a variational method and a self‐consistent procedure. The screening effect due to the 2‐dimensional electron‐hole gas and the built‐in electric field produced by spontaneous and strain‐induced piezoelectric polarization are considered in our calculation. The result indicates that the strong built‐in electric field is modulated obviously by the well width, barri… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.