Journal
NANOSCALE RESEARCH LETTERS
Volume 4, Issue 10, Pages 1218-1221Publisher
SPRINGEROPEN
DOI: 10.1007/s11671-009-9384-9
Keywords
Graphene; Field emission; Nanomanipulator; Nanoelectronics
Funding
- King Abdullah University of Science and Technology (KAUST) [KUK-F1038-02]
- National Science Foundation [DMI-0619762]
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This paper describes an experimental study on field emission characteristics of individual graphene layers for vacuum nanoelectronics. Graphene layers were prepared by mechanical exfoliation from a highly oriented pyrolyzed graphite block and placed on an insulating substrate, with the resulting field emission behavior investigated using a nanomanipulator operating inside a scanning electron microscope. A pair of tungsten tips controlled by the nanomanipulator enabled electric connection with the graphene layers without postfabrication. The maximum emitted current from the graphene layers was 170 nA and the turn-on voltage was 12.1 V.
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