Breakdown voltage reduction by field emission in multi-walled carbon nanotubes based ionization gas sensor

• Main Authors: Saheed, M.S.M., Mohamed, N.M., Burhanudin, Z.A.
• Format: Article
• Published: American Institute of Physics Inc. 2014
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897388354&doi=10.1063%2f1.4869758&partnerID=40&md5=1dfee2e01870d9717f49b0a17a36a5f4; http://eprints.utp.edu.my/31313/
• Institution: Universiti Teknologi Petronas

Ionization gas sensors using vertically aligned multi-wall carbon nanotubes (MWCNT) are demonstrated. The sharp tips of the nanotubes generate large non-uniform electric fields at relatively low applied voltage. The enhancement of the electric field results in field emission of electrons that domina...