TITLE

Scanning electron microscopy of field-emitting individual single-walled carbon nanotubes

AUTHOR(S)
Nojeh, Alireza; Wai-Kin Wong; Baum, Aaron W.; Pease, R. Fabian; Hongjie Dai
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/5/2004, Vol. 85 Issue 1, p112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Carbon nanotubes are promising electron emitters because of their sharp geometries that lead to significant external field enhancement, as well as their mechanical strength. However, distinguishing the emission due to an individual single-walled carbon nanotube (SWCNT) from that due to surrounding structures is a challenge. Here, we demonstrate how a scanning electron microscope (SEM) can be used to view the emission from individual SWCNTs by applying an external field close to the onset of field-emission and then scanning the tube with the electron beam of the SEM. The stimulated emission is revealed in the SEM image as localized bright spots.
ACCESSION #
13605609

 

Related Articles

  • Ultra low-K shrinkage behavior when under electron beam in a scanning electron microscope. Lorut, F.; Roggero, A.; Imbert, G. // Journal of Applied Physics;Aug2013, Vol. 114 Issue 8, p084508 

    In this paper, we investigate the tendency of porous low-K dielectrics (also named Ultra Low-K, ULK) behavior to shrink when exposed to the electron beam of a scanning electron microscope. Various experimental electron beam conditions have been used for irradiating ULK thin films, and the...

  • Carbon nanotube oscillators toward zeptogram detection. Nishio, Mitsumasa; Sawaya, Shintaro; Akita, Seiji; Nakayama, Yoshikazu // Applied Physics Letters;3/28/2005, Vol. 86 Issue 13, p133111 

    We demonstrate an application of a nanotube cantilever for zeptogram-level mass detection. This letter presents a quantitative method to measure the oscillation amplitude of a nanotube cantilever using a focused electron beam of a scanning electron microscope. The quality factor of ∼1000...

  • Multiscale Hybrid Micro-Nanocomposites Based on Carbon Nanotubes and Carbon Fibers. Fawad Inam; Y.Wong, Doris W.; Kuwata, Manabu; Peijs, Ton // Journal of Nanomaterials;2010, Special section p1 

    Amino-modified double wall carbon nanotube (DWCNT-NH2)/carbon fiber (CF)/epoxy hybrid micro-nanocomposite laminates were prepared by a resin infusion technique. DWCNT-NH2/epoxy nanocomposites and carbon fiber/epoxy microcomposites were made for comparison. Morphological analysis of the hybrid...

  • In situ manipulation and characterizations using nanomanipulators inside a field emission-scanning electron microscope. Keun Soo Kim; Seong Chu Lim; Im Bok Lee; Key Heyok An; Dong Jae Bae; Shinje Choi; Jae-Eun Yoo; Young Hee Lee // Review of Scientific Instruments;Sep2003, Vol. 74 Issue 9, p4021 

    We have used two piezoelectric nanomanipulators to manage the multiwalled carbon nanotubes (MWCNTs) within the field emission-scanning electron microscope (FE-SEM). For an easy access of a tungsten tip to MWCNTs, we prepared the tungsten tip in sharp and long tip geometry using different...

  • High emission currents and low threshold fields in multi-wall carbon nanotube-polymer composites in the vertical configuration. Sameera, I.; Bhatia, Ravi; Prasad, V.; Menon, Reghu // Journal of Applied Physics;Feb2012, Vol. 111 Issue 4, p044307 

    In this work, we present field emission characteristics of multi-wall carbon nanotube (MWCNT)-polystyrene composites at various weight fractions along the cross-section of sample. Scanning electron microscope images in cross-sectional view reveal that MWCNTs are homogeneously distributed across...

  • Electron field emission from a single carbon nanotube: Effects of anode location. Smith, R. C.; Cox, D. C.; Silva, S. R. P. // Applied Physics Letters;9/5/2005, Vol. 87 Issue 10, p103112 

    Electron field emission from an isolated carbon nanotube (CNT) was performed in situ in a modified scanning electron microscope, over a range of anode to CNT tip separations, D, of 1–60 μm. The threshold field required for an emission current of 100 nA was seen to decrease from a value...

  • Screen-printed single-walled carbon nanotube networks and their use for dimethyl methylphosphonate detection. Jing, Hongjun; Jiang, Yadong; Du, Xiaosong // Journal of Materials Science: Materials in Electronics;Oct2012, Vol. 23 Issue 10, p1823 

    Single-walled carbon nanotube (SWNT) films were prepared on silicon/silica substrates by screen-printed technique at a wafer scale, and their sensing properties to dimethyl methylphosphonate (DMMP) were studied. The SWNT networks were characterized by field-emission scanning electron microscope....

  • Tungsten/Platinum Hybrid Nanowire Growth via Field Emission Using Nanorobotic Manipulation. Zhan Yang; Nakajima, Masahiro; Ode, Yasuhito; Fukuda, Toshio // Journal of Nanotechnology;2011, p1 

    This paper reports tungsten-platinum hybrid nanowire growth via field emission, based on nanorobotic manipulation within a field emission scanning electron microscope (FESEM). A multiwalled carbon nanotube (MWCNT) was used as the emitter, and a tungsten probe was used as the anode at the...

  • Enhancing electron field emission of carbon nanoflakes by hydrogen post-annealing process. Wen-Ching Shih; Jian-Min Jeng; Chin-Tze Huang; Jyi-Tsong Lo // Journal of Materials Science: Materials in Electronics;Sep2011, Vol. 22 Issue 9, p1269 

    In this study, the carbon nanoflakes (CNFs) fabricated by sputtering were chosen as the field emission emitters because of their very sharp and thin edges which are potentially good electron field emission sites. The as-deposited CNFs were annealed in the furnace under hydrogen atmosphere. The...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics