Title :
Scandate coating for tungsten field emission electron sources
Author :
Wan, Cangshang ; Sadowski, Jerzy T. ; Kordesch, Martin E.
Author_Institution :
Ohio Univ., Athens, OH, USA
Abstract :
Scandium oxide coated field emitter arrays have been investigated for enhanced field emission. The enhancement is proposed to originate in a reduction of the interfacial energy barrier between the tungsten and the scandium oxide, in analogy with thermionic cathodes.
Keywords :
field emitter arrays; scandium compounds; surface energy; thermionic cathodes; tungsten compounds; interfacial energy barrier; scandate coating; scandium oxide coated field emitter array; thermionic cathode; tungsten field emission electron sources; Cathodes; Diamond-like carbon; Heating; Scanning electron microscopy; Thermionic emission; Tungsten; diamond field emitter array; electron emission microcopy; field emission; scandate; tungsen;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2011 24th International
Conference_Location :
Wuppertal
Print_ISBN :
978-1-4577-1243-2
Electronic_ISBN :
pending
