Preview

    image preview

    Title - Alternative

    Skylab M556 Vapor Growth of II-VI Compounds

    Keywords

    Aeronautics, Crystal, Marshall Space Flight Center, NASA, Skylab

    Photo Description

    This photograph shows a sealed quartz ampule containing mixed crystals of the compound semiconductor germanium selenide. These crystals were grown on Skylab as part of Experiment M556, Vapor Growth of II-VI Compounds. This is one of a series of experiments performed in the Multipurpose Electric Furnace developed by the Marshall Space Flight Center. These crystals were grown by heating the compound, allowing it to vaporize and chemically transport through the temperature gradient in iodine vapor, and then condense into the crystal form. The samples are being evaluated for chemical composition, homogeneity, crystal perfection, trace impurities, and optical and electrical properties, in comparison with samples produced on Earth. The reflection in the center of the ampule is a single crystal approximately 1 mm thick, 4 mm wide, and 25 mm long (1 inch). This crystal represents an enormous improvement in size and shape over similar crystals grown on Earth. The Principal Investigator for this experiment is Dr. Harry Wiedemeier of Rensselaer Polytechnic Institute.

    Publication Date

    11-12-1973

    Format

    image/jpeg

    Number of Images

    2

    Side of Image

    Front of Image

    Publisher

    National Aeronautics and Space Administration (NASA)

    Original Size

    8" x 10"

    Identifier

    DP0057714-0033a

    NASA Photo Number

    73H-1120; 73P-637

    Photo Credit

    National Aeronautics and Space Administration

    Location

    John C. Hitt Library

    Department

    Special Collections & University Archives

    Call Number

    SC 010

    Digital Production Specifications

    Digitized by the University of Central Florida Libraries, Digital Initiatives Unit. Jpeg images were derived from no less than 600 dpi tiffs scanned on a Copibook scanner.

    Use and Reproduction

    This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information, contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816, (407) 823-2576.
    Download Medium Thumbnail

    Keywords

    Aeronautics, Crystal, Marshall Space Flight Center, NASA, Skylab

    Share

    COinS