RESEARCH ON PHOTOVOLTAIC CELLS. Document Details Document Type Technical Report Publication Date Nov 01, 1963 Accession Number AD0437683 Entities People Donald J. Harvey James C. Schaefer Norman E. Heyerdahl Roger F. Belt Tags DTIC Thesaurus Topics Carbides Cells Chemical Compounds Compound Semiconductors Electronics Inorganic Carbon Compounds Inorganic Chemicals Semiconductors Silicon Carbide Solar Cells Solid State Electronics