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Articles
Field emission from carbon nanotubes on a graphitized carbon fabricPublished in
2008
Volume: 46
Issue: 13
Pages: 1656 - 1663
Multi-walled carbon nanotubes (MWCNTs) have been directly grown over a flexible graphitized carbon fabric by water assisted chemical vapor deposition. Field emission properties are compared with randomly oriented multi-walled and single walled carbon nanotube field emitters obtained by spin coating on to carbon fabric. The MWCNTs and single walled carbon nanotubes (SWCNTs) used in spin coating were characterized by X-ray diffraction (XRD) and Raman spectroscopy. High resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) were used to characterize the field emitters. The use of graphitized carbon fabric as substrate has brought in flexibility in the fabrication of carbon nanotube field emitters. The samples show good field emission properties with a fairly stable emission current. Analysis of field emission based on the Fowler-Nordheim theory reveals current saturation effects at high applied fields for all the samples. © 2008 Elsevier Ltd. All rights reserved.
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About the journal
| Journal | Carbon |
|---|---|
| ISSN | 00086223 |
| Open Access | No |
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Concepts (44)
Architectural acoustics- Carbon
- Chemical vapor deposition
- Cladding (coating)
- ELECTRON SOURCES
- Emission spectroscopy
- Fabrics
- Field emission
- Graphitization
- High resolution electron microscopy
- High resolution transmission electron microscopy
- Imaging techniques
- Multiwalled carbon nanotubes (mwcn)
- Nanocomposites
- Nanopores
- Nanostructured materials
- Nanostructures
- Nanotechnology
- Nanotubes
- Optical design
- Single-walled carbon nanotubes (swcn)
- SPIN COATING
- Spin dynamics
- WATER VAPOR
- X ray analysis
- Applied fields
- Carbon fabrics
- CARBON-NANOTUBE FIELD EMITTERS
- Chemical vapors
- CURRENT SATURATION
- FIELD EMISSION PROPERTIES
- Field emissions
- Field emitters
- FOWLER-NORDHEIM THEORY
- GRAPHITIZED CARBONS
- Multi-walled
- Multi-walled carbon nanotubes
- Scanning electron microscopy (sem)
- SINGLE WALLED CARBON NANOTUBE
- SINGLE-WALLED CARBON NANOTUBES
- SPIN COATINGS
- STABLE EMISSIONS
- X-ray diffraction
- Carbon nanotubes
