Scanning anode field emission microscopy of nanocarbons

Denis A. Bandurin, Victor I. Kleshch, Elena A. Smolnikova, Ivan V. Obronov, Albert G. Nasibulin, Esko I. Kauppinen, Alexander N. Obraztsov

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Field electron emission of the nanographite films consisting of few layer plate-like graphene crystallites (or nanowalls) and the films of entangled single-walled carbon nanotubes was investigated using scanning anode field emission microscopy. The surfaces of the films of both types were scanned with positively biased tip-anode in order to measure the distributions of properties of the individual emission sites in the film cathodes. The maximal emission currents and other characteristics of the cathodes were estimated using obtained data. The emission site distribution for the cathodes made from carbon nanotubes was found to be dependent on the nanotube film thickness. That was explained by the electrostatic screening effect. The comparative studies revealed a different behavior of the individual emission sites in nanotube and nanographite cathodes, which was assigned to the difference in mechanical properties of flexible tubes and rigid nanographite crystallites.

Original languageEnglish
Pages (from-to)114-118
Number of pages5
JournalJournal of Nanoelectronics and Optoelectronics
Volume8
Issue number1
DOIs
Publication statusPublished - Jan 2013
Externally publishedYes

Keywords

  • Carbon Nanotubes
  • Field Emission
  • Nanocarbons
  • Nanographite

Fingerprint

Dive into the research topics of 'Scanning anode field emission microscopy of nanocarbons'. Together they form a unique fingerprint.

Cite this