Phase separations of single-crystal nanowires grown by self-catalytic chemical vapor deposition method

The fundamentals of phase separations of single-crystal III-V nitride nanowires grown by self-catalytic chemical vapor deposition method have been studied. Experimental tools, such as high resolution transmission electron microscopy and scanning electron microscopy, have been used to characterize the nanowires. The study indicates that nanowires with diameters exceeding about 100 nm undergo phase transitions and/or crystal structure deterioration. The study highlights a relationship between the crystal structure and the kinetics of growth of nanowires.