Interface Modification by Hydrocarbon Gas Molecular Beams in Heteroepitaxy of SiC on Si

Abstract
Carbonization of Si surfaces using hydrocarbon gas molecular beams was investigated. In the case of carbonizing bare Si surfaces with C2H2, single-crystalline 3C-SiC layers were obtained only in the narrow range of a substrate temperature near 780°C. Among various surface treatments, the existence of a surface oxide layer and temperature rise during carbonization is proved to be effective in reproducibly obtaining single-crystalline 3C-SiC layers.