Title :
Dynamic effects of field emission initiated glow discharge with long pulses
Author :
Wenger, Daniela ; Knappy, W. ; Henselz, B. ; Tedde, Sandro F.
Author_Institution :
Corp. Technol., Siemens AG, Erlangen, Germany
Abstract :
The field emission properties of SWCNT/graphene hybrid samples were investigated. A transition of electron field emission to glow discharge was measured for high currents, long pulse-on times or high duty cycles with stainless steel anodes. Evidences for this transition were plasma glowing between cathode and anode as well as constant-voltage characteristics where time resolved measurements show an exponentially increasing current. It was observed that no glow discharge occurs with copper or molybdenum anodes. The outgassing of stainless steel is significantly higher due to the low thermal conductivity and the high amount of electron stimulated desorption.
Keywords :
anodes; carbon nanotubes; cathodes; copper; electron field emission; electron stimulated desorption; glow discharges; graphene; molybdenum; stainless steel; thermal conductivity; C; Cu; Mo; SWCNT-graphene hybrid samples; cathode; constant-voltage characteristics; copper anodes; dynamic effects; electron field emission; electron stimulated desorption; field emission properties; initiated glow discharge; long pulses; molybdenum anodes; plasma glowing; stainless steel anodes; thermal conductivity; time resolved measurements; Anodes; Copper; Discharges (electric); Graphene; Steel; electron field emission; electron stimulated desorption; glow discharge; plasma ignition; vacuum discharge;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2014 27th International
Conference_Location :
Engelberg
Print_ISBN :
978-1-4799-5306-6
DOI :
10.1109/IVNC.2014.6894820
