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Defect/oxygen assisted direct write technique for nanopatterning graphene

A. Cagliani ; Niclas Lindvall (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; Mbbs Larsen ; D. M. A. Mackenzie ; B. S. Jessen ; T. J. Booth ; P. Boggild
Nanoscale (2040-3364). Vol. 7 (2015), 14, p. 6271-6277.
[Artikel, refereegranskad vetenskaplig]

High resolution nanopatterning of graphene enables manipulation of electronic, optical and sensing properties of graphene. In this work we present a straightforward technique that does not require any lithographic mask to etch nanopatterns into graphene. The technique relies on the damaged graphene to be etched selectively in an oxygen rich environment with respect to non-damaged graphene. Sub-40 nm features were etched into graphene by selectively exposing it to a 100 keV electron beam and then etching the damaged areas away in a conventional oven. Raman spectroscopy was used to evaluate the extent of damage induced by the electron beam as well as the effects of the selective oxidative etching on the remaining graphene.



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Denna post skapades 2015-06-12. Senast ändrad 2015-12-11.
CPL Pubid: 218282

 

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Projekt

Denna publikation är ett resultat av följande projekt:


Graphene-Based Revolutions in ICT And Beyond (GRAPHENE) (EC/FP7/604391)