Chen, Ke-fan and Deng, Jian-hua and Zhao, Fei and Cheng, Guo-an and Zheng, Rui-ting (2010) Fabrication and Properties of Ag-nanoparticles Embedded Amorphous Carbon Nanowire/CNT Heterostructures. Nanoscale Research Letters, 5 (9). pp. 1449-1455.
Carbon nanotubes were subjected to doping with an energetic Ag ion beam, and the carbon nanotubes on the top of the array were transformed into amorphous carbon nanowires with embedded Ag-nanoparticles. The field emission characteristics of these nanowires were investigated. The minimum turn-on and threshold fields were 0.68 and 1.09Â V/Î¼m, respectively, which were lower than those of the as-grown carbon nanotubes. This was probably because Ag-nanoparticles embedded in the carbon nanowires reduced the effective work function from 4.59 to 4.23Â eV. Large doping amounts produced serious structural damage at the top of the nanowires and impaired the field emission characteristics.
|Uncontrolled Keywords:||Carbon nanotube, Nanowire, Ion implantation, Field emission|
|Subjects:||Material Science > Nanofabrication processes and tools|
Material Science > Nanostructured materials
|Deposited On:||21 Oct 2010 09:30|
|Last Modified:||21 Oct 2010 09:30|
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