Inventors:
Terry D. Golding - Missouri City TX
John H. Miller - Houston TX
Assignee:
The University of Houston - Houston TX
International Classification:
H01L 2120
Abstract:
The present invention provides for the fabrication of single layer semimetal/semiconductor heterostructures and multilayer semimetal/semiconductor structures. Each semimetal/semiconductor layer fabricated in accordance with the present invention has compatible crystal symmetry across the heterojunction between a semimetal and a semiconductor. A single layer semimetal/semiconductor structure is fabricated by growing a rhombohedral semimetal in a �111! direction on a substrate material having a (111) orientation, and then growing a zincblende semiconductor in a �111! direction on the semimetal. A multilayer semimetal/semiconductor structure may be grown from the single layer semimetal/semiconductor structure by growing an additional rhombohedral semimetal layer in a �111! direction on the preceding semiconductor grown, then growing an additional zincblende semiconductor layer in a �111!direction on the additional semimetal layer, and then repeating this process as many times as desired. Each semimetal to be sandwiched between semiconductors in the multilayer semimetal/semiconductor structure may be grown thin enough that the semimetal is converted into a semiconductor.