Accession Number : AD0727048

Title :   Research on Improved II-VI Crystals.

Descriptive Note : Final technical rept. 1 Jun 70-31 Jan 71,

Corporate Author : CLEVITE CORP CLEVELAND OHIO ELECTRONIC RESEARCH DIV

Personal Author(s) : Shiozawa,L. R. ; Jost,J. M.

Report Date : MAR 1971

Pagination or Media Count : 36

Abstract : Vapor phase growth of single-crystal boules of CdTe, CdSe, ZnTe, and CdS was attempted by the seed-growth method using a capillary leak to maintain a stoichiometrically-proportioned vapor composition during the growth process. Although a measure of success was attained, difficulties arose such as formation of extraneous nucleation and occurrence of inclusions of SiO2 particles. Single-crystal growth at relatively high growth rates over at least a limited seed area was obtained for each compound for the complete length of the boule. Improved techniques should eliminate much of the difficulty but some modifications of the method may be necessary to attain complete success. An analysis of multiple twinning in CdTe and ZnTe crystals occurring during the growth process is also given. (Author)

Descriptors :   (*CADMIUM SULFIDES, CRYSTAL GROWTH), (*CADMIUM SELENIDES, CRYSTAL GROWTH), (*SEMICONDUCTORS, *CRYSTAL GROWTH), ZINC COMPOUNDS, ZINC SULFIDES, TELLURIDES, SELENIDES, PHASE STUDIES, TWINNING(CRYSTALLOGRAPHY)

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE