Transport Properties of “Man-Made” Crystalline Semiconductor Superlattices

Abstract

Abstract:The electron transport in semiconductor superlattices exhibits interesting phenomena which are quite different from those that occurred in a bulk material. This depends on the electronic band structures in the semiconductor superlattices. The energy band gaps of the superlattices are aligned, but the magnitudes of the band gaps are different. The difference in the width of the energy gap in different semiconductors forms the boundary of the conductivity band for perfect semiconductor superlattices that is modulated periodically and leads to the formation of energy minibands.