Physics and chemistry of semiconductor interfaces: Some future directions

In this paper we will discuss some semiconductor interface problems which we expect will receive increasing attention during the next few years. In particular, we will consider interfaces between crystalline and amorphous semiconductors, interfaces between semiconductor polytypes such as cubic and hexagonal ZnS, and compositionally modulated semiconductor superlattices involving GeSi alloys, as well as transport measurements of interface roughness in GaAs/Ge/GaAs heterostructures.