Optimized field emission of multiwalled carbon nantoubes

Kyongsoo Lee, Byeong Kwon Ju

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


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/cm 2 at 1.8V/μm can be attained.

Original languageEnglish
Title of host publicationDigest of Technical Papers - SID International Symposium
Number of pages3
Publication statusPublished - 2008
Event2008 SID International Symposium - Los Angeles, CA, United States
Duration: 2008 May 202008 May 21


Other2008 SID International Symposium
CountryUnited States
CityLos Angeles, CA


ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, K., & Ju, B. K. (2008). Optimized field emission of multiwalled carbon nantoubes. In Digest of Technical Papers - SID International Symposium (3 ed., Vol. 39, pp. 1781-1783)