Evolution of Epitaxial InAs Nanowires on GaAs (111)B
A systematic investigation of the Au catalyst-assisted growth of epitaxial InAs nanowires (NW) on GaAs substrates was presented. Scanning electron microscopy (SEM) images of InAs NWs with different growth times show no vertical NWs in the sample with 1 min growth of InAs. High resolution transmission electron microscopy (HRTEM) investigations performed at the trace/substrate interface to determine the strain status show many misfit dislocations at the InAs/GaAs interface. The interfacial energy...[Show more]
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