New Gallium Precursors for the Formation of High Purity Gallium Arsenide by Metal Organic Vapor Phase Deposition

摘要

The reduction of gallium trichloride monoammonia adduct with lithium hydride affords lithium trichlorohydrido gallate whereas the non-coordinated trichloride affords the known species, lithium tetrahydrido gallate. Attempts to prepare the ammonia adduct of gallane via lithium tetrahydrido gallate and ammonium chloride resulted in decomposition with hydrogen evolution. Exploratory investigation geared towards the formation of gallium perfluoroalkyls, via discharge reactions involving hexafluoroethane and trifluoroiodomethane, resulted in the gallium reduction of the pyrex reactors - construction of quartz reactors is therefore necessitated. (Author)