Title :
Influence of argon on field emission from CVD-grown in-plane single-walled carbon nanotube meshes
Author :
Fontana, Michele ; Yian Liu ; Monica, Andrew H. ; Barbara, Paola ; Paranjape, Makarand
Author_Institution :
Dept. of Phys., Georgetown Univ., Washington, DC, USA
Abstract :
The influence of argon (Ar) on the growth of in-plane single-walled carbon nanotube (SWCNTs) meshes using chemical vapor deposition (CVD) was investigated in this study. The SWCNT samples were synthesized using a three-zone furnace (750°C-900°C-750°C) with a methane/hydrogen/argon mixture (total flow of 60 sccm). We verified that the use of argon influences the diameter distribution and the field emission properties of the resulting SWCNTs. The threshold voltage for electron emission was significantly decreased with higher argon concentration due to higher layer conductivity of the samples.
Keywords :
argon; carbon nanotubes; chemical vapour deposition; electrical conductivity; electron field emission; nanofabrication; Ar; C; CVD; argon concentration; chemical vapor deposition; electron emission; field emission; layer conductivity; methane-hydrogen-argon mixture; single-walled carbon nanotube meshes; temperature 750 degC; temperature 900 degC; three-zone furnace; Argon; Carbon nanotubes; Chemical vapor deposition; Furnaces; Hydrogen; Physics; Temperature measurement; Raman spectroscopy; argon gas; carbon nanotubes; field emission properties;
Conference_Titel :
Microsystems for Measurement and Instrumentation (MAMNA), 2013
Conference_Location :
Gaithersburg, MD
Print_ISBN :
978-1-4799-0221-7
DOI :
10.1109/MAMNA.2013.6557226
