Title :
4.1: Field emission spectroscopy of carbon nanotube cathodes
Author :
Bornmann, B. ; Mingels, S. ; Navitski, A. ; Lützenkirchen-Hecht, D. ; Müller, G.
Author_Institution :
FB C - Phys., Bergische Univ. Wuppertal, Wuppertal, Germany
Abstract :
We have constructed a measurement system for field emission spectroscopy (FES) of cold cathodes. Its commissioning with a tungsten needle yielded an electron energy resolution of less than 50 meV. Combined FES and current-field measurements on column arrays of entangled multiwall carbon nanotubes resulted in a work function of Φ = 4.86 ± 0.4 eV which confirms the literature data.
Keywords :
carbon nanotubes; cathodes; field emission; carbon nanotube cathodes; cold cathodes; electron energy resolution; field emission spectroscopy; measurement system; tungsten needle; Apertures; Carbon nanotubes; Cathodes; Current measurement; Energy resolution; Logic gates; Needles;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2010 23rd International
Conference_Location :
Palo Alto, CA
Print_ISBN :
978-1-4244-7889-7
Electronic_ISBN :
978-1-4244-7888-0
DOI :
10.1109/IVNC.2010.5563216
