Raman spectroscopy and field emission measurements on catalytically grown carbon nanotubes

Abstract

We used microcontact printing to pattern a silicon surface with an iron-containing catalytic solution. Multi-wall carbon nanotubes were subsequently grown on the patterned areas by chemical vapor deposition at temperatures between 650 and 1000C. We demonstrate that the diameter of the catalytically grown multi-wall nanotubes increases with the deposition temperature. Raman spectroscopy has been used to investigate the crystalline character of the obtained structures and it is found that the fraction of the nano-crystalline shell increases with the temperatures. The measurement of the field emission properties shows a correlation between the tube diameter and the emission field values.

6 pages, 6 figures, 1 table

References in corpus (3)

• Comparative study of the catalytic growth of patterned carbon nanotube films
• Tailoring the diameter of decorated CN nanotubes by temperature variations using HF-CVD
• Influence of the deposition conditions on the field emission properties of patterned nitrogenated carbon nanotube films

Cited by in corpus (4)

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• Oxygen and light sensitive field-effect transistors based on ZnO nanoparticles attached to individual double-wall carbon nanotubes