Title :
Evidences for field emission initiated glow discharge at high currents
Author :
Wenger, Daniela ; Knapp, Wolfram ; Hensel, Bernhard ; Tedde, Sandro F.
Author_Institution :
Corp. Technol., Siemens AG, Erlangen, Germany
Abstract :
The field emission properties of carbon based field emitters have been widely investigated in the past years. High emission currents up to 400mA can be achieved with a hybrid system of SWCNTs and graphene. However, we measure a deviation from Fowler-Nordheim-type field emission which is caused especially by space charge effects in DC mode. A secondary emission process occurs for currents higher than 10mA which causes a fast enhancement of the current.
Keywords :
carbon nanotubes; field emission; field emitter arrays; glow discharges; graphene; space charge; C; Fowler-Nordheim-type field emission; SWCNT; carbon based field emitters; emission currents; field emission initiated glow discharge; field emission properties; graphene; secondary emission process; space charge effects; Anodes; Cathodes; Current measurement; Educational institutions; Glow discharges; Plasma measurements; Resistance;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2014 27th International
Conference_Location :
Engelberg
Print_ISBN :
978-1-4799-5306-6
DOI :
10.1109/IVNC.2014.6894816
