AMORPHOUS SEMICONDUCTOR OR MULTILAYER MATERIAL CONTAINING INSULATOR MATERIAL

摘要

A composition of matter comprising a multilayer material in which the layers forming the structure are made of semicon- ductor or insulator material with conduction and valence band edge energies that are spatially periodic due to the compositional modulation associated with the individual layers, the structure having at least two periodic repeat distances and the material formed from tetrahedrally bonded elements or alloys containing said tetrahedrally bonded elements.