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.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-F1038-02
Acknowledgements: This work has partially been supported by Exchange Student Program by Brain Korea 21, Award No KUK-F1038-02 made by King Abdullah University of Science and Technology (KAUST) and National Science Foundation (Major Research Instrumentation Program, Award No. DMI-0619762).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.