Date of Award


Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)




The need for more perfect and more economical crystalline materials has increased greatly in the last decade. Many devices, i.e. photocells, Hall detectors, thermistors, radiation detectors, etc. depend on the quality of the crystals they employ. The usefulness of many of these devises also depend on economic considerations. For example, materials which have a high melting point and a high vapor pressure at the melting point require expensive high temperature, high pressure equipment for their production. If they could be crystallized at low temperatures and at atmospheric pressure, their cost would be greatly reduced. Cadmium sulfide is such a material. It melts at 1750 degrees with a vapor pressure of 100 atm. This material is one of the most promising for use in solar cells.



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