Study on fabrication and photoluminescence of SiC nanorods synthesised by carbothermal reduction
SiC nanorods were synthesised from SiO
2xerogel containing carbon nanoparticles at 1550°C in argon flow. The morphology and structure of the materials were determined by transmission electron microscopy, scanning electron microscopy, X-ray diffraction and Raman scattering methods. The static photoluminescence and time-resolved photoluminescence of SiC nanorods were examined under different thermal contact surface areas in the synthesis process. The results showed that products with high thermal contact surface areas have strong photoluminescence. The emission peaks were around 490 nm and shifted to longer wavelength regions when annealed at high temperature. The nature of photoluminescence emission observed in different synthesis conditions is discussed in this report.
Keywords: SiC nanorods, slicon carbide, surface thermal areas, material density, photoluminescence, shell-core structures, carbon nanoparticles, nanotechnology
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