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Electronic characterization of defects in narrow gap semiconductors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Patterson, James D. |
| Copyright Year | 1993 |
| Description | The study of point defects in semiconductors has a long and honorable history. In particular, the detailed understanding of shallow defects in common semiconductors traces back to the classic work of Kohn and Luttinger. However, the study of defects in narrow gap semiconductors represents a much less clear story. Here, both shallow defects (caused by long range potentials) and deep defects (from short range potentials) are far from being completely understood. In this study, all results are calculational and our focus is on the chemical trend of deep levels in narrow gap semiconductors. We study substitutional (including antisite), interstitial and ideal vacancy defects. For substitutional and interstitial impurities, the efects of relaxation are included. For materials like Hg(1-x)Cd(x)Te, we study how the deep levels vary with x, of particular interest is what substitutional and interstitial atoms yield energy levels in the gap i.e. actually produce deep ionized levels. Also, since the main technique utilized is Green's functions, we include some summary of that method. |
| File Size | 1208008 |
| Page Count | 59 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940006364 |
| Archival Resource Key | ark:/13960/t8sb90r77 |
| Language | English |
| Publisher Date | 1993-06-25 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Conduction Bands Crystal Defects Point Defects Green's Functions Crystal Lattices Molecular Interactions Interstitials Vacancies Crystal Defects Mercury Cadmium Tellurides Band Structure of Solids Impurities Semiconductors Materials Mercury Tellurides Energy Gaps Solid State Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
