Journal
MATERIALS RESEARCH BULLETIN
Volume 45, Issue 5, Pages 568-571Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2010.01.015
Keywords
Nanostructures; Vapor deposition; Electrical properties
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Field emission properties of partly Fe-filled carbon nanotubes (FCNTs) treated with different plasmas have been studied. Super low turn-on (0.24 V/mu m) and threshold (0.6 V/mu m) electric fields are identified upon nitrogen plasma treatment for 60 min. The field-enhancement factor, as high as 4.8 x 10(4), can be attributed to the plasma-induced structural defects and the unique characteristics of thin walled FCNTs with filled Fe nanowires. A model has been proposed to understand the effects of plasma on the CNTs. (C) 2010 Elsevier Ltd. All rights reserved.
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