Enhancement of Field Emission Properties of Carbon Nano tubes by ECR-Plasma Treatment Ali, J.; Kumar, A.; Parveen, Sh.; Zulfequar, M.; Husain, M. [Department of Physics, Jamia Millia Islamia, New Delhi (India)]; Husain, S.; Husain, M. [Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia, New Delhi (India)]; Choithrani, R. [Department of Physics, Barkatullah University, Bhopal 462 026 (India)]; Husain, M. [M.J.P. Rohilkhand University, Bareilly, Uttar Pradesh (India)] 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; CATALYSTS; ELECTRON CYCLOTRON-RESONANCE; FIELD EMISSION; PARTICLES; PLASMA We report a significant improvement in electron field emission property of carbon nano tubes film by using an electron cyclotron resonance plasma treatment. Our research results reveal that plasma treatment can modify the surface morphology and enhance the field emission characteristics of carbon nano tubes. Raman spectra indicate that plasma treated CNTs sample has lesser defects. Before plasma treatment, low current density of 6.5 mA/cm{sup 2} at 3.0 V/μm and at a high turn-on field of 2.4 V/μm was observed. ECR plasma treated CNTs showed a high current density of 20.0 mA/cm{sup 2} at 3.0 V/μm and at a low of 1.6 V/μm. The calculated enhancement factors are 694 and 8721 for ECR-plasma untreated and treated carbon nano tubes, respectively. We found an increase in the enhancement factor and emission current after the ECR-plasma treatment. This may be attributed to creation of geometrical features through the removal of amorphous carbon and catalyst particles. Egypt 2014-07-01 English Journal Article Journal Name: Journal of Nanoscience (Online); Journal Volume: 2014; Journal Issue: 2014 Medium: X; Size: 5 page(s) https://doi.org/ [] 2014 2014 Journal ID: ISSN 2314-6931; TRN: EG1600085040727 INIS 2016-05-09 22470914