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Title: Scanning electron microscopy of field-emitting individual single-walled carbon nanotubes
Authors: Nojeh, A.
Wong, W.-K. 
Baum, A.W.
Pease, R.F.
Dai, H.
Issue Date: 5-Jul-2004
Citation: Nojeh, A., Wong, W.-K., Baum, A.W., Pease, R.F., Dai, H. (2004-07-05). Scanning electron microscopy of field-emitting individual single-walled carbon nanotubes. Applied Physics Letters 85 (1) : 112-114. ScholarBank@NUS Repository.
Abstract: The use of scanning electron microscope (SEM) to view the emission from individual single-walled carbon nanotubes (SWCNT) by applying an external field close to the onset of field-emission and then scanning the tube with the electron beam of the SEM was demonstrated. The SWCNT were grown by using chemical vapor depositon (CVD) for 5 min at 850°C with methane and ethylene as precursors and hydrogen as a background gas. It was observed that at the onset of emission, the SEM image did indeed, as speculated, exhibit a few bright spots corresponding to the positions of the CNT tips. Black radial patterns emanating from the emission point toward the extractor electrode were also observed.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.1763984
Appears in Collections:Staff Publications

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