Fabrication of ZnS/SiC nanocables, SiC-shelled ZnS nanoribbons (and sheets), and SiC nanotubes (and tubes)

Hu, J. Q.; Bando, Y.; Zhan, J. H.; Golberg, D.
October 2004
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2932
Academic Journal
Here we report on the synthesis of ZnS/SiC nanocables and SiC nanotubes and other relevant structures via a controllable two-stage thermal process using ZnS nanowires, nanoribbons, and sheets as templates. Within the cables, the ZnS cores are polytypes of fcc- and hcp-ZnS with ∼50–130 nm diameter, and the SiC shells are polycrystalline β-SiC with ∼15–50 nm thickness. SiC nanotubes were formed through simple removal of ZnS cores from the cables. Room-temperature photoluminescence of the SiC nanotubes displays a strong green emission band centered at ∼517 nm. The nanostructures described herewith may be valuable in the blocks of advanced semiconducting devices.


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