Accession Number : AD0709969

Title :   SEMICONDUCTOR MATERIALS FOR ELECTROLUMINESCENT DIODES AND LASERS.

Descriptive Note : Technical summary rept.,

Corporate Author : BELL AND HOWELL CO PASADENA CALIF ELECTRONIC MATERIALS DIV

Personal Author(s) : Thompson,Alan G.

Report Date : MAY 1970

Pagination or Media Count : 103

Abstract : The growth of high quality Pb(1-x)Sn(x)Te single crystals by the Czochralski method using liquid encapsulation is described. The control of the carrier density was achieved by growth from non-stoichiometric melts and by isothermal annealing in the presence of a cation-rich vapor. Extensive electrical measurements were made on samples prepared by all of the above techniques, and interpreted in light of the band-crossing model. Thin homo-epitaxial layers of Pb(1-x)Sn(x)Te alloys were prepared by liquid epitaxy and their physical and electrical properties were investigated. For comparison purposes, diffused and Schottky barrier junctions were also prepared and measured. High purity GaAs epitaxial layers on GaAs substrates were grown by the liquid epitaxial technique. Hall effect and capacitance measurements were taken in order to establish the quality and homogeneity of these layers. (Author)

Descriptors :   (*SEMICONDUCTORS, *CRYSTAL GROWTH), (*LEAD COMPOUNDS, CRYSTAL GROWTH), (*TIN COMPOUNDS, CRYSTAL GROWTH), (*ELECTROLUMINESCENCE, SEMICONDUCTORS), LASERS, SEMICONDUCTOR DIODES, TELLURIDES, FILMS, GALLIUM ARSENIDES, ELECTRICAL PROPERTIES, PHASE DIAGRAMS

Subject Categories : Lasers and Masers
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE