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The growth mechanism of silicon nanowires synthesized with or without a metal catalyst via chemical-vapor-deposition (CVD) is discussed by using a developed vapor–liquid–solid and novel sulfide-assisted growth models, respectively. The metal catalyst plays an important role on the catalytic growth. However, the growth of silicon nanowires with sulfide is chiefly affected by the compound decomposition,...
Infrared (IR) spectra of the silicon nanowires (SiNWs) with oxide layer are analyzed by introducing the disorder-induced mechanical coupling between the optically active oxygen asymmetric stretch (AS) and inactive oxygen asymmetric stretch (I-AS) modes in terms of the transverse-optic (TO) and longitudinal-optic (LO) vibrational modes. The shapes of the IR spectra are similar to that of the reported...
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