SYNTHESIS OF GE NANOWIRES ENCAPSULATED WITHIN MULTI WALLED CARBON NANOTUBES BY CVD

摘要

Abstract The present invention relates to single-step synthesis of Ge nanowires encapsulated within multi-walled carbon nanotubes from a phenyltrimethylgermane (C6H5Ge(CH3)3) precursor, using a simple CVD method. Referring to Fig (1) two-zone furnace employed for the CVD preparation for the growth of pristine carbon MWNTs, and consisted of a quartz tube reactor and a flat quartz slide inserted at the reaction zone for additional deposition surface. Synthesized nanowires are largely free from amorphous forms of carbon and possess large aspect ratios, the typical length being in the order of 10 By optimizing the CVD parameters, nanowires can be produced with uniform length and diameter in the range 6-10 and 200-300 nm, respectively.