Title :
Electron sources with CNT field-emitter cathodes - Design differences for lower and higher emission currents
Author_Institution :
Otto-von-Guericke-Univ. Magdeburg / IFQ, Magdeburg, Germany
Abstract :
This contribution is a result of higher emission current investigations with CNT field-emitter cathodes. The emitter resistor must be considered for emission current above 5 mA. Thin and long CNT field-emitters show emission current saturation. A simple R-limited emission model is presented.
Keywords :
carbon nanotubes; cathodes; electron sources; CNT field-emitter cathodes; R-limited emission model; carbon nanotube; electron sources; emission current saturation; emitter resistor; higher emission currents; lower emission currents; RNA; CNT emitter resistor; CNTs; carbon nanotube field-emitter; electron source; field electron emission; field-emission measurement;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2013 26th International
Conference_Location :
Roanoke, VA
DOI :
10.1109/IVNC.2013.6624763
