Title :
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
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;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2012 25th International
Conference_Location :
Jeju
Print_ISBN :
978-1-4673-1983-6
Electronic_ISBN :
pending
DOI :
10.1109/IVNC.2012.6316834
