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Controllable Synthesis and Growth Model of Amorphous Silicon Nanotubes with Periodically Dome‐Shaped Interiors
Author(s) -
Li C.,
Liu Z. T.,
Gu C.,
Xu X.,
Yang Y.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500202
Subject(s) - materials science , silane , dome (geology) , amorphous silicon , amorphous solid , silicon , chemical vapor deposition , nanotechnology , nanowire , deposition (geology) , surface tension , amorphous silica , composite material , chemical engineering , optoelectronics , crystalline silicon , crystallography , paleontology , chemistry , physics , quantum mechanics , sediment , engineering , biology
Amorphous silicon nanotubes with periodically aligned dome‐shaped interiors (see Figure) are fabricated by chemical vapor deposition using a gold catalyst. As‐grown materials have a length of several tens of micrometers and diameters of 70–100 nm. The inner shape and size of the interiors in the products may be tuned by controlling the silane flow rate, producing structures ranging from nanowires to tubular structures. A growth model based on surface tension is proposed.