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Silicon carbide nanotubes (SiCNTs) with special morphology synthesized by supercritical hydrothermal method at 470 °C and
8 MPa have been reported in this paper. SiCNTs with special morphology were characterized by transmission electron microscopy
(TEM) and high-resolution TEM (HRTEM). There are two kinds of silicon carbide with special morphology: One is oval SiCNTs
with small aspect ratio, the other is bamboo cone-shape structure. SiCNTs have been analyzed by fluorescence spectrometer.
The results indicate that the SiCNTs have strong photoluminescence (PL) property. The SiCNTs with oval shape are one kind
of intermediate state of growth process of nanotube. The growth mechanism of silicon nanotubes has been proposed based on
experiment data. The investigations of growth mechanism of SiCNTs with bamboo structure show that the defect produced in the
growth process play the important role in SiCNTs with special structure. 相似文献
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