RESEARCH ON MONOCRYSTALLINE SEMICONDUCTOR FILMS
PHILCO CORP BLUE BELL PA
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Research was conducted on the development of methods and procedures for the production of thin, single-crystal sheets or films of semic nducting aterials inc uding, but not limited to Ge. Several approaches were initiated inc uding ribbon casting, growth from the vapor phase, various electrolytic techniques, wire casting, de dritic growth, and a photoelectric etching method. Each of the approaches yielded a measure of success, especially the dendri ic growth process from vapor phase. Since these methods were limited in scope, particularly with regard to the growth of thinner films, a the retical study is being made of a new technique, selective adsorption. This process basically implies an increased condensation coefficient for a particular angle of vapor incidence, hich pens the possibility of oriented film formation irrespective of subtrate structure.