CUED Publications database

Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays

Iacobucci, S and Fratini, M and Fratini, M and Rizzo, A and Scarinci, F and Zhang, Y and Mann, M and Li, C and Li, C and Milne, WI and Milne, WI and El Gomati, MM and Lagomarsino, S and Lagomarsino, S and Stefani, G (2012) Angular distribution of field emitted electrons from vertically aligned carbon nanotube arrays. Applied Physics Letters, 100. ISSN 0003-6951

Full text not available from this repository.

Abstract

Angular field emission (FE) properties of vertically aligned carbon nanotube arrays have been measured on samples grown by plasma enhanced chemical vapor deposition and characterized by scanning electron microscope and I-V measurements. These properties determine the angular divergence of electron beams, a crucial parameter in order to obtain high brilliance FE based cathodes. From angular distributions of the electron beam transmitted through extraction grids of different mesh size and by using ray-tracing simulations, the maximum emission angle from carbon nanotube tips has been determined to be about ± 30 around the tube main axis. © 2012 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron job
Date Deposited: 16 Jul 2015 13:06
Last Modified: 31 Jul 2015 00:59
DOI: 10.1063/1.3681398