Field emission properties of Ex-situ and In-situ iron catalyst-grown carbon nanotubes

Y. D. Lim, D. Grapov, S. Wang, B. K. Tay*, S. Aditya, V. Labunov

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon Nanotubes (CNTs) are grown using ex-situ and in-situ iron catalyst sources, and their respective Field Emission (FE) properties are investigated. At similar CNT heights (∼16 μm), it is found that in-situ catalyst-grown CNT film shows better FE properties than ex-situ catalyst-grown CNT film. At the same time, it is found that in-situ CNTs show enlarged tips, forming 'thumbtack'-shaped CNT tips. From the simulation study, enlarged CNT tip emits higher FE current, possibly due to the larger emission area. The obtained results demonstrated that in-situ catalyst-grown CNTs show better FE properties than ex-situ catalyst-grown CNTs.

Original languageEnglish
Title of host publication2017 IEEE 12th Nanotechnology Materials and Devices Conference, NMDC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages53-54
Number of pages2
ISBN (Electronic)9781538627723
DOIs
Publication statusPublished - Jul 2 2017
Externally publishedYes
Event12th IEEE Nanotechnology Materials and Devices Conference, NMDC 2017 - Singapore, Singapore
Duration: Oct 2 2017Oct 4 2017

Publication series

Name2017 IEEE 12th Nanotechnology Materials and Devices Conference, NMDC 2017
Volume2018-January

Conference

Conference12th IEEE Nanotechnology Materials and Devices Conference, NMDC 2017
Country/TerritorySingapore
CitySingapore
Period10/2/1710/4/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

ASJC Scopus Subject Areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Instrumentation

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