Optimized field emission of multiwalled carbon nantoubes

Kyongsoo Lee, Byeong Kwon Ju

Research output: Contribution to journalConference articlepeer-review


To investigate the emission properties of carbon nanotubes (CNTs), an indium based cathode was formulated with various surface treatments. In this case, we can demonstrate the field emission properties of unalloyed CNTs as compared with the conventional screen-printed method. We have demonstrated that the sprayed carbon nanotubes (CNTs) on the indium layer were vertically aligned by surface treatment methods such as taping and applying acritical bias field. From these emitter surfaces, the CNT can be turned on with a field as low as 1.4V/μm. An emission current density of5mA/cm2 at 1.8V/μm can be attained.

Original languageEnglish
Pages (from-to)1781-1783
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Issue number1
Publication statusPublished - 2008
Event2008 SID International Symposium - Los Angeles, CA, United States
Duration: 2008 May 202008 May 21

ASJC Scopus subject areas

  • General Engineering


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