Photo-modulated field emission of carbon nanotubes cold cathodes

Author

Andrianiazy, Florian ; Mazellier, Jean-Paul ; Gangloff, Laurent ; Legagneux, Pierre ; Ponnard, Pascal ; Martinez, Nicolas ; Bourat, Christophe ; Han, Xiang-Lei ; Lampin, Jean-françois

Author_Institution

Lab. de Micro-Nano Phys., Thales Res. & Technol, Palaiseau, France

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

4

Abstract

In this article, we present our work on vertically aligned multi-walled carbon nanotube arrays for field emission cathodes and photocathodes. Carbon nanotubes cathodes deliver current densities up to 0.5A/cm². To optically modulate the emission, silicon photodiodes have been integrated under the carbon nanotubes, allowing a laser-controlled emission. An ON/OFF ratio up to 23 has been achieved.

Keywords

carbon nanotubes; current density; electron field emission; elemental semiconductors; photocathodes; photodiodes; silicon; Si; carbon nanotube cold cathodes; current density; field emission cathodes; laser-controlled emission; photocathodes; photomodulated field emission; silicon photodiodes; vertically aligned multiwalled carbon nanotube arrays; Carbon nanotubes; Cathodes; Current measurement; Nickel; Photodiodes; Silicon; Substrates; X-ray sources; carbon nanotubes; cold cathodes; field emission; photocathodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference (IVNC), 2012 25th International

Conference_Location

Jeju

ISSN

pending

Print_ISBN

978-1-4673-1983-6

Electronic_ISBN

pending

Type

conf

DOI

10.1109/IVNC.2012.6316834

Filename

6316834