This project focused on developing methods for fabrication of nonthermionic cold cathodes based on a lattice-matched material system consisting of a conducting substrate (source of electrons), a wide-bandgap semiconductor (conduction band closer to the vacuum level), and a low-work function material (to facilitate high emission of electrons). A material system fulfilling these requirements was found in indium phosphide (InP) as a substrate, cadmium sulfide (CdS) as the wide-bandgap semiconductor, and ...
This short-term innovative research project investigated the epitaxial growth of silicon deposited from the vapor phase onto an Al-covered silicon substrate. The 60 nm Al layer behaved as if it were transparent to the Si flux. The silicon cleanly passed through the Al layer to the buried Al/Si interface where it formed a defect-free Si layer on the original single crystal Si substrate. The new growth method is referred to ...
Reports by Author
