Molecular Beam Epitaxial Growth, Characterization and Electronic Device Processing of HgCdTe, HgZnTe, Related Heterojunctions and HgCdTe-CdTe Superlattices.

摘要

The research program on the growth by Molecular Beam Epitaxy of Hg-based alloys and heterostructures carried out in the Microphysics Laboratory at the University of Illinois at Chicago and supported by this contract has been extremely successful. Tremendous progress has been achieved towards the improvement of HgCdTe and related heterostructures in terms of structural, electrical and optical properties. A very important step has been passed through in the control of the twinning process during the growth in the (111)B orientation. Furthermore, it has been clearly established for the first time that twins or related dislocations are acting as acceptors in HgCdTe and are detrimental for diode performance, what was suspected but never proved until our conclusive experiments.